Identification_Information: Citation: Citation_Information: Originator: Graham, G.E. Originator: Jozwik, Diana Publication_Date: 2007 Title: Data tables related to geology and gold mineralization in the Richardson district, east-central Alaska Geospatial_Data_Presentation_Form: tabular digital data, report Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2007-2 Publication_Information: Publication_Place: Fairbanks, AK USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 32 pp. Online_Linkage: http://dx.doi.org/10.14509/15819 Description: Abstract: This report describes the results of geologic mapping and sample analysis from the Richardson district, east-central Alaska. Purpose: The objective of the project was to create a more accurate geologic map of a portion of the Richardson district and to propose a model for the geological evolution of the Richardson area. Supplemental_Information: Attribute information for the following tables (entities) is included in this metadata file under the "Entity_and_Attribute_Information" section. Each layer is listed and described in detail under its own heading starting "Entity_Type_Label." Tables include: >table1 grab samples, approximate locations, assigned rock types and analyses >table2 Modal mineralogy of gneisses >table3 Estimated modal mineral abundances (volume %) >table4 XRF major oxide and normative values for gneiss samples >table5 XRF major and minor element results for amphibolite samples >table6 XRF major oxide and normative values for igneous rock samples >table7 Trace element compositions (in ppm) of igneous rocks >table8 Samples employed for Geothermometry and Geobarometry >table9 Average microprobe data of mineral assemblages >table10 Fluid inclusion samples, locations, and assay values >table11 Fluid inclusion data and estimated fluid parameters >table12 Comparison between Bald Knob, Democrat, Ryan Lode fluid inclusion data >table13 Interpreted 40Ar/39Ar ages (in Ma) >table14 Ages of geologic events >table15 40Ar/39Ar step-heating results and data Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1999 Ending_Date: 2002 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -146.4829 East_Bounding_Coordinate: -146.1133 North_Bounding_Coordinate: 64.8802 South_Bounding_Coordinate: 64.3246 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Age Dates Theme_Keyword: Ar-Ar Theme_Keyword: CIPW Norms Theme_Keyword: Fluid Inclusion Theme_Keyword: Geobarometry Theme_Keyword: Geochemical Data Theme_Keyword: Geochronology Theme_Keyword: Geothermometry Theme_Keyword: Major Oxides Theme_Keyword: Microprobe Analysis Theme_Keyword: Modal Analysis Theme_Keyword: Trace Elements Place: Place_Keyword_Thesaurus: None Place_Keyword: Richardson Mining District Place_Keyword: Big Delta Quadrangle Access_Constraints: This report, map, and/or dataset are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below). Use_Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. Native_Data_Set_Environment: Microsoft Windows XP SP2, ArcGIS 9.+, and any text editor. Cross_Reference: Citation_Information: Originator: Berman, R.G. Publication_Date: 1990 Title: Mixing properties of Ca-Mg-Fe-Mn garnets Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: American Mineralogist Issue_Identification: v. 75 Other_Citation_Details: p. 328-334 Cross_Reference: Citation_Information: Originator: Cameron, C.E Publication_Date: 2000 Title: Fault-hosted Au mineralization, Ester Dome, Alaska Geospatial_Data_Presentation_Form: thesis Publication_Information: Publication_Place: University of Alaska, Fairbanks Publisher: University of Alaska, Fairbanks Other_Citation_Details: 115 p. Cross_Reference: Citation_Information: Originator: Holdaway, M.J. Publication_Date: 1971 Title: Stability of andalusite and the aluminum silicate phase diagram Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: American Journal of Science Issue_Identification: v. 271 Other_Citation_Details: p. 97-131 Cross_Reference: Citation_Information: Originator: Kleeman, U. Originator: Reinhardt, J. Publication_Date: 1994 Title: Garnet-biotite thermometry revisited: The effect of Al VI and Ti in biotite Geospatial_Data_Presentation_Form: journal article Series_Information: Series_Name: European Journal of Mineralogy Issue_Identification: v. 6 Other_Citation_Details: p. 925-941 Cross_Reference: Citation_Information: Originator: Perchuk, L.L. Originator: Lavrenteva, I.V. Publication_Date: 1983 Title: Experimental investigation of exchange equilibria in the system cordierite-garnet-biotite, in Saxena, S.K. Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: New York Publisher: Springer Verlag Other_Citation_Details: in Saxena, S.K., ed., Kinetics and Equilibrium in Mineral Reactions, p. 199-240 Larger_Work_Citation: Citation_Information: Originator: Saxena, S.K.(ed.) Publication_Date: 1983 Title: Kinetics and equilibrium in mineral reactions Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: New York Publisher: Springer-Verlag Cross_Reference: Citation_Information: Originator: Ruperto, V.L. Originator: Stevens, R.E. Originator: Norman, M.B. Publication_Date: 1964 Title: Staining of plagioclase feldspars and other minerals with F.D. and C. Red No. 2 Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: U.S. Geological Survey Professional Paper Issue_Identification: PP 501-B Other_Citation_Details: p. B152-B153 Cross_Reference: Citation_Information: Originator: Spear, F.S. Publication_Date: 1993 Title: Metamorphic phase equilibria and pressure-temperature-time paths Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Washington, D.C. Publisher: Mineralogical Society of America Other_Citation_Details: 799 p. Cross_Reference: Citation_Information: Originator: Spear, F.S. Originator: Kohn, M.J. Publication_Date: 199905 Title: Thermobarometry (GTB), Version 2.1 Geospatial_Data_Presentation_Form: document Cross_Reference: Citation_Information: Originator: Steiger, R.H. (comp.) Originator: Jaeger, E. (comp.) Publication_Date: 1977 Title: Subcommission on geochronology: Convention of the use of decay constants in geo- and cosmochronology Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Earth and Planetary Science Letters Issue_Identification: v.36, no. 3 Other_Citation_Details: p. 359-362 Cross_Reference: Citation_Information: Originator: Angus, S. Originator: Armstrong, B. Originator: Altunin, V. Publication_Date: 1976 Title: Carbon dioxide: International thermodynamic tables of the fluid state, Volume 3 Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Oxford Publisher: Pergamon Press Other_Citation_Details: 385 p. Cross_Reference: Citation_Information: Originator: Brown, P.E. Originator: Lamb, W.M Publication_Date: 1989 Title: PVT properties of fluids in the system H2O+/-CO2+/-NaCl; New graphical presentations and implications for fluid inclusion studies Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Geochimica et Cosmochimica Acta Issue_Identification: v. 53, no. 6 Other_Citation_Details: p. 1209-1221 Cross_Reference: Citation_Information: Originator: Burruss, R.C. Publication_Date: 1981 Title: Analysis of phase equilibria in COHS fluid inclusions Geospatial_Data_Presentation_Form: document Other_Citation_Details: in Hollister, L.S., and Crawford, M.L., eds., Fluid inclusions; applications to petrology: Mineralogical Association of Canada Short Course, v. 6, p. 39-74 Larger_Work_Citation: Citation_Information: Originator: Hollister, L.S.(ed.) Originator: Crawford, M.L.(ed.) Publication_Date: 1981 Title: Fluid inclusions; applications to petrology Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Mineralogical Association of Canada Short Course Issue_Identification: v. 6 Cross_Reference: Citation_Information: Originator: Douglas, T.A. Publication_Date: 1996 Title: Metamorphic histories of the Chatanika eclogite and Fairbanks schist within the Yukon Tanana terrane, Alaska, as revealed by electron microprobe thermobarometry and 40Ar/39Ar single grain dating Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Fairbanks, Alaska Publisher: University of Alaska Fairbanks Other_Citation_Details: M.S. thesis, 240 p. Cross_Reference: Citation_Information: Originator: Foster, H.L. Originator: Albert, N.R.D. Originator: Griscom, Andrew Originator: Hessin, T.D. Originator: Menzie, W.D. Originator: Turner, D.L. Originator: Wilson, F.H. Publication_Date: 1979 Title: The Alaskan Mineral Resource Assessment Program; Background information to accompany folio of geologic and mineral resource maps of the Big Delta Quadrangle, Alaska Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: U.S. Geological Survey Circular Issue_Identification: CIR 783 Other_Citation_Details: 19 p. Cross_Reference: Citation_Information: Originator: Ganguly, Jibamitra Originator: Saxena, S.K. Publication_Date: 1984 Title: Mixing properties of aluminosilicate garnets; Constraints from natural and experimental data, and applications to geothermo-barometry Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: American Mineralogist Issue_Identification: v. 69, no. 12 Other_Citation_Details: p.88-97 Cross_Reference: Citation_Information: Originator: Ghent, E.D. Originator: Stout, M.Z. Publication_Date: 1981 Title: Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Contributions to Mineralogy and Petrology Issue_Identification: v. 76, no. 1 Other_Citation_Details: p. 92-97 Cross_Reference: Citation_Information: Originator: Graham, G.E. Publication_Date: 2002 Title: Geology and gold mineralization of the Richardson district, east-central Alaska Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Fairbanks, Alaska Publisher: University of Alaska Fairbanks Other_Citation_Details: M.S. Thesis, 150 p. Cross_Reference: Citation_Information: Originator: Hodges, K.V. Originator: Crowley, P.D. Publication_Date: 1985 Title: Error estimation and empirical geothermobarometry for pelitic systems Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: American Mineralogist Issue_Identification: v. 70, no. 78 Other_Citation_Details: p. 702-709 Cross_Reference: Citation_Information: Originator: Hodges, K.V. Originator: Spear, F.S. Publication_Date: 1982 Title: Geothermometry, geobarometry and the Al2SiO5 triple point at Mt. Moosilauke, New Hampshire Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: American Mineralogist Issue_Identification: v. 67, no. 1112 Other_Citation_Details: p. 1118-1134 Cross_Reference: Citation_Information: Originator: Hoisch, T.D. Publication_Date: 1990 Title: Empirical calibration of six geobarometers for the mineral assemblage quartz + muscovite + biotite + plagioclase + garnet Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Contributions to Mineralogy and Petrology Issue_Identification: v. 104, no. 2 Other_Citation_Details: p. 225-234 Cross_Reference: Citation_Information: Originator: Kennedy, G.C. Publication_Date: 1954 Title: Pressure-volume-temperature relations in CO2 at elevated temperatures and pressures Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: American Journal of Science Issue_Identification: v. 252, no. 4 Other_Citation_Details: p. 225-241 Cross_Reference: Citation_Information: Originator: McCoy, D.T. Originator: Newberry, R.J. Originator: Layer, P.W. Originator: DiMarchi, J.J. Originator: Bakke, A.A. Originator: Masterman, J.S. Originator: Minehane, D.L. Publication_Date: 1997 Title: Plutonic-related gold deposits of interior Alaska Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Economic Geology Monographs Issue_Identification: v. 9 Other_Citation_Details: p.191-241 Cross_Reference: Citation_Information: Originator: Newton, R.C. Originator: Haselton, H.T. Publication_Date: 1981 Title: Thermodynamics of the garnet plagioclase Al2SiO5 quartz geobarometer Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: New York Publisher: Springer-Verlag Other_Citation_Details: in Newton, R.C., Navrotsky, Alexandra, and Wood, B.J., eds., Thermodynamics of minerals and melts, p. 131-147 Larger_Work_Citation: Citation_Information: Originator: Newton, R.C.(ed.) Originator: Navrotsky, Alexandra(ed.) Originator: Wood, B.J.(ed.) Publication_Date: 1981 Title: Thermodynamics of minerals and melts Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: New York Publisher: Springer-Verlag Cross_Reference: Citation_Information: Originator: Roedder, E.R. Publication_Date: 1984 Title: Fluid inclusions Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Reviews in Mineralogy Issue_Identification: v. 12 Other_Citation_Details: 644 p Cross_Reference: Citation_Information: Originator: McDougall, Ian Originator: Harrison, T.M. Publication_Date: 1988 Title: Geochronology and thermochronology by the (super 40) Ar/ (super 39) Ar method Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Oxford Monographs on Geology and Geophysics Issue_Identification: v. 9 Other_Citation_Details: 212 p. Cross_Reference: Citation_Information: Originator: Bundtzen, T.K. Originator: Reger, R.D. Publication_Date: 1977 Title: The Richard lineament a structural control for gold deposits in the Richardson mining district, interior Alaska Geospatial_Data_Presentation_Form: journal article Series_Information: Series_Name: Geologic Report Issue_Identification: GR 55 Publication_Information: Publication_Place: Fairbanks, AK Publisher: Alaska Geological & Geophysical Surveys Other_Citation_Details: p. 29-34 Larger_Work_Citation: Citation_Information: Originator: Alaska Geological & Geophysical Surveys Publication_Date: 1977 Title: Short Notes on Alaskan Geology - 1977 Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Geologic Report Issue_Identification: GR 55 Publication_Information: Publication_Place: Fairbanks, AK Publisher: Alaska Geological & Geophysical Surveys Other_Citation_Details: 50 p. Cross_Reference: Citation_Information: Originator: Pakhomova, V. Originator: Belyaeva, V. Originator: Tishkin, B. Publication_Date: 1995 Title: Results of a thermobarometric study of hydrothermal fluids and magmatic system at the Democrat lode deposit, Richardson district, Alaska Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Alaska Miners Association Special Symposium Issue_Identification: v. 1 Publication_Information: Publication_Place: Anchorage, Alaska Publisher: Glacier House Publications Other_Citation_Details: p. 128-133 Larger_Work_Citation: Citation_Information: Originator: Bundtzen, T.K. (ed.) Originator: Fonseca, A.L. (ed.) Originator: Mann, Roberta (ed.) Publication_Date: 1995 Title: The Geology and Mineral Deposits of the Russian Far East Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Alaska Miners Association Special Symposium Issue_Identification: v. 1 Publication_Information: Publication_Place: Anchorage, Alaska Publisher: Glacier House Publications Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Placer Dome Exploration (PDX) conducted a large-scale soil sampling program in the area in 1999 and 2000. Hand samples were also collected from various locations during concurrent geologic mapping. The geochemical results from these activities were used to determine subsequent core drilling in both 1999 and 2000. Thirty thin sections, 15 doubly-polished from vein samples, 12 polished sections, and one white mica separate were used from the core drilled by PDX during 1999 and 2000. This core was halved with a rock saw with one-half of each interval sent for assay and the other retained for additional studies. Modal estimates were conducted on 36 metamorphic and four igneous hand specimens that were etched and stained for quartz, plagioclase, and K-feldspar using the technique of Ruperto and others (1964). K-feldspar assumed a bright yellow color, plagioclase stained red, and quartz remained unstained. Modal estimates were made either by standard point-counting using a minimum of 100 points, or by estimation by comparison to standard abundance charts. Modal abundances are listed in tables 2 and 3. Major- and minor-oxide analyses were performed by Bondar-Clegg, Incorporated, Vancouver, British Columbia, Canada, on 39 rock samples, including 13 from drill core. Samples were crushed and pulverized in Fairbanks before pulps were shipped to Vancouver. Major- and minor-oxide results, including normative values, are listed in tables 4, 5 and 6. Trace-element analyses for 34 of the samples were performed at the University of Alaska Fairbanks on splits of the pulverized samples using a Rigaku energy-dispersive XRF and a routine created by Rainer Newberry (described in Cameron, 2000). The results of 16 of the samples are listed in tables 5 and 7. Replicate and secondary standard analyses for commercial and UAF XRF analyses indicate major oxides are accurate to within 2 percent of the amount present, while trace elements are accurate to within 510 percent of the amount present (Cameron, 2000). Microprobe data collected on biotite, garnet, white mica, and K-feldspar were processed using the Macintosh Geothermobarometry program GTB (Spear and Kohn, 1999). Temperatures were calculated for 12 different garnet-biotite distribution models. Of these 12, those of Perchuk and Lavrenteva (1984) and Kleeman and Reinhardt (1994) with Berman (1990) produced similar, consistent temperatures intermediate to those of other models and were selected as most appropriate for biotite-garnet thermometry. Pressures were estimated based on the calculated temperatures, the aluminosilicate stability diagram of Holdaway (1971), and several compositional-based geobarometers (Spear, 1993). Geothermometry data are presented in table 8. Microprobe analyses were performed on six polished sections of gneiss and one polished section from a gold-bearing vein, using the Cameca SX-50 electron microprobe and Probe for Windows software at the University of Alaska Fairbanks. Silicate compositions were measured using a 10 micron beam at 15 nA on wavelength-dispersive spectrometers. Well-characterized natural and synthetic specimens were employed as standards. On-peak counts were collected for 10 seconds and background counts were collected for 5 seconds. Five points were selected for each silicate. These data were ZAF (atomic mass, absorbance, and fluorescence) corrected and poor-quality results were removed from the data set. Opaque minerals, including gold and bismuth, were identified in the gold-bearing vein using the EDS with a standardless analysis routine. Microprobe analyses are presented in table 9. Fluid inclusion experiments were performed at the USGS facility in Denver, Colorado, using a Linkam heating/freezing stage cooled with liquid nitrogen. All heating and cooling measurements were computer controlled, with standard-based calibrations performed prior to each session. Chips of a section up to 3 mm2 were taken from eight doubly-polished sample sections, 100 to 150 microns thick, and analyzed individually. The chips, attached by glue to the slide, were removed from the section using acetone. Heating and cooling measurements were performed using Linksys, a Windows-driven program, which has a precision of 0.1 Celsius. The low-temperature measurements included CO2 and clathrate melting temperatures. All measurements except for final homogenization were performed systematically on each inclusion before moving on to the next. After several inclusions were measured, final homogenization temperatures were measured for as many inclusions as possible. Final homogenization observations were made for surrounding inclusions where possible. Once stretching of an inclusion was indicated (by non-repeatable heating experiments), no more homogenization measurements were collected from that chip. Fluid inclusion data are presented in tables 10, 11, and 12. Five samples were dated using the 40Ar/39Ar technique, as described in detail by Douglas (1996). The samples were irradiated for 20 megawatt hours in a reactor at McMaster University along with standard sample MMHB-1 with age 513.9 Ma. The standard is used to estimate J, the irradiation parameter and the flux gradient of the reactor. The irradiated samples were then analyzed in the mass spectrometer at the University of Alaska Fairbanks geochronology laboratory, using an 40Ar/39Ar step heating routine 3940 days after irradiation. The measured argon isotopes were corrected for mass discrimination as well as for interference of Ca, K, and Cl produced from the reactor. Blanks (inlets) were run to determine background levels of argon, and measurements were corrected for the background argon. Ages are quoted with a 1 sigma level and calculated using the constants of Steiger and Jaeger (1977). Argon dating results are presented in table 13. The proposed geological events for the Richardson area, based on the radiometric dating, are presented in table 14. Table 15 lists the 40Ar/39Ar step-heating results and data. Logical_Consistency_Report: No topologic relationships are present in the data. Completeness_Report: Not all data analyzed was included in this report. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Location data is in UTM coordinates with a Clark 1866, NAD27, UTM zone 6 projection. Locations were measured using a Garmin GPS handheld unit. Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 10 Horizontal_Positional_Accuracy_Explanation: Standard resolution (in meters) of Garmin GPS. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Ruperto, V.L. Originator: Stevens, R.E. Originator: Norman, M.B. Publication_Date: 1964 Title: Staining of plagioclase feldspars and other minerals with F.D. and C. Red No. 2 Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: U.S. Geological Survey Professional Paper Issue_Identification: PP 501-B Other_Citation_Details: p. B152-B153 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1964 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Ruperto and others, 1964 Source_Contribution: 36 metamorphic and 4 igneous hand specimens were etched and stained for quartz, plagioclase, and K-feldspar using the technique of Ruperto, V.L., Stevens, R.E., and Norman, M.B., 1964. Source_Information: Source_Citation: Citation_Information: Originator: Spear, F.S. Originator: Kohn, M.J. Publication_Date: 199905 Title: Thermobarometry (GTB), Version 2.1 Geospatial_Data_Presentation_Form: document Type_of_Source_Media: computer program Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 199905 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Spear and Kohn, 1999 Source_Contribution: Microprobe data collected on biotite, garnet, white mica and K-feldspar were processed using the Macintosh Geothermobarometry program GTB. Source_Information: Source_Citation: Citation_Information: Originator: Perchuk, L.L. Originator: Lavrenteva, I.V. Publication_Date: 1983 Title: Experimental investigation of exchange equilibria in the system cordierite-garnet-biotite, in Saxena, S.K. Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: New York Publisher: Springer Verlag Other_Citation_Details: in Saxena, S.K., ed., Kinetics and Equilibrium in Mineral Reactions, p. 199-240 Larger_Work_Citation: Citation_Information: Originator: Saxena, S.K.(ed.) Publication_Date: 1983 Title: Kinetics and equilibrium in mineral reactions Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: New York Publisher: Springer-Verlag Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Perchuk and Lavrenteva, 1983 Source_Contribution: One of several garnet-biotite distribution models which were used for biotite-garnet thermometry comparisons. Source_Information: Source_Citation: Citation_Information: Originator: Kleeman, U. Originator: Reinhardt, J. Publication_Date: 1994 Title: Garnet-biotite thermometry revisited: The effect of Al VI and Ti in biotite Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: European Journal of Mineralogy Issue_Identification: v. 6 Other_Citation_Details: p. 925-941 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Kleeman and Reinhardt, 1994 Source_Contribution: One of several garnet-biotite distribution models which were used for biotite-garnet thermometry comparisons. Source_Information: Source_Citation: Citation_Information: Originator: Berman, R.G. Publication_Date: 1990 Title: Mixing properties of Ca-Mg-Fe-Mn garnets Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: American Mineralogist Issue_Identification: v. 75 Other_Citation_Details: p. 328-334 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Berman, 1990 Source_Contribution: One of several garnet-biotite distribution models which were used for biotite-garnet thermometry comparisons. Source_Information: Source_Citation: Citation_Information: Originator: Holdaway, M.J. Publication_Date: 1971 Title: Stability of andalusite and the aluminum silicate phase diagram Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: American Journal of Science Issue_Identification: v. 271 Other_Citation_Details: p. 97-131 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Holdaway, 1971 Source_Contribution: Pressures were estimated based on the aluminosilicate stability diagram of Holdaway. Source_Information: Source_Citation: Citation_Information: Originator: Spear, F.S. Publication_Date: 1993 Title: Metamorphic phase equilibria and pressure-temperature-time paths Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Washington, D.C. Publisher: Mineralogical Society of America Other_Citation_Details: 799 p. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1993 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Spear, 1993 Source_Contribution: Pressures were estimated based on several compositional-based geobarometers of Spear. Source_Information: Source_Citation: Citation_Information: Originator: Douglas, T.A. Publication_Date: 1996 Title: Metamorphic histories of the Chatanika eclogite and Fairbanks schist within the Yukon-Tanana terrane, Alaska as revealed by electron microprobe thermobarometry and 40Ar/39Ar single grain dating Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: University of Alaska, Fairbanks Publisher: University of Alaska, Fairbanks Other_Citation_Details: 240 p. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1996 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Douglas, 1996 Source_Contribution: Five samples were dated using the 40Ar/39Ar technique as described in detail by Douglas. Source_Information: Source_Citation: Citation_Information: Originator: Steiger, R.H. Originator: Jaeger, E. Publication_Date: 1977 Title: Subcommission on geochronology: Convention of the use of decay constants in geo- and cosmochronology Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Earth and Planetary Science Letters Issue_Identification: v.36, no. 3 Other_Citation_Details: p. 359-362 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1977 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Steiger and Jaeger, 1977 Source_Contribution: Radiometric ages are quoted with a + 1 sigma level and calculated using the constants of Steiger and Jaeger. Source_Information: Source_Citation: Citation_Information: Originator: Cameron, C.E. Publication_Date: 2000 Title: Fault-hosted Au mineralization, Ester Dome, Alaska Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: University of Alaska, Fairbanks Publisher: University of Alaska, Fairbanks Other_Citation_Details: 115 p. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Cameron, 2000 Source_Contribution: Trace element analyses (Rb, Sr, Y, Nb, Zr) for 34 of the samples were performed at the University of Alaska, Fairbanks on splits of the pulverized samples using a Rigaku wavelength-dispersive XRF, and a routine created by Rainer Newberry (described in Cameron, 2000). Source_Information: Source_Citation: Citation_Information: Originator: McDougall, Ian Originator: Harrison, T.M. Publication_Date: 1988 Title: Geochronology and thermochronology by the (super 40) Ar/ (super 39) Ar method Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Oxford Monographs on Geology and Geophysics Issue_Identification: v. 9 Other_Citation_Details: 212 p. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: McDougall and Harrison, 1988 Source_Contribution: In table 15, 40Ar*/39ArK (40*/39K) and ages (and 1-sigma error) were calculated using the equations and constants quoted in McDougall and Harrison (1988). Process_Step: Process_Description: Field work - During the summers of 1999 and 2000, the area was mapped on foot and over 400 geological stations were recorded and 300 samples collected. In many cases it was necessary to dig into tree roots and creek banks and dig test pits up to 1.5 meters deep. Process_Date: 1999 Process_Step: Process_Description: Field work - Placer Dome Exploration (PDX) conducted a large scale soil sampling program in the area and rock chip samples collected were saved for analysis. Process_Date: Unknown Process_Step: Process_Description: Lab - Cynthia Dusel-Bacon of the U.S, Geological Survey kindly loaned several thin-sections for examination use in microprobe studies. Florence Weber provided several boxes of collected samples to be examined to provide a regional framework. Process_Date: Unknown Process_Step: Process_Description: Lab - 36 metamorphic and 4 igneous hand specimens were etched and stained for quartz, plagioclase, and K-feldspar using the technique of Ruperto, V.L., Stevens, R.E., and Norman, M.B., 1964. K-feldspar acquired a bright yellow color, plagioclase stained red and quartz was unstained. Modal estimates were made either by standard point-counting using a minimum of 100 points, or by estimation by comparison to standard abundance charts. Modal abundances are listed in tables 1 and 2. Source_Used_Citation_Abbreviation: Ruperto and others, 1964 Process_Date: Unknown Process_Step: Process_Description: Lab - Major oxide analyses were performed by Bondar-Clegg, Incorporated, Vancouver, British Columbia, Canada on 39 rock samples, including 13 from drill core. Samples were crushed and pulverized in Fairbanks before pulps were shipped to Vancouver. Five of the samples were also analyzed for XRF trace elements by Bondar-Clegg, Incorporated. Process_Date: Unknown Process_Step: Process_Description: Lab - Microprobe data collected on biotite, garnet, white mica and K-feldspar were processed using the Macintosh Geothermobarometry program GTB (Spear and Kohn, 1999). Temperatures were calculated for 12 different garnet-biotite distribution models. Of these 12, those of Perchuk and Lavrenteva (1983) and Kleeman and Reinhardt (1994) with Berman (1990) produced similar, consistent temperatures intermediate to those of other models and were selected as most appropriate for biotite-garnet thermometry. Pressures were estimated based on the aluminosilicate stability diagram of Holdaway (1971), the calculated temperatures, and several compositional-based geobarometers (Spear, 1993). Geothermometry data are presented in table 7. Source_Used_Citation_Abbreviation: Spear and Kohn, 1999 Source_Used_Citation_Abbreviation: Perchuk and Lavrenteva, 1983 Source_Used_Citation_Abbreviation: Kleeman and Reinhardt, 1994 Source_Used_Citation_Abbreviation: Berman, 1990 Source_Used_Citation_Abbreviation: Holdaway, 1971 Source_Used_Citation_Abbreviation: Spear, 1993 Process_Date: Unknown Process_Step: Process_Description: Lab - Microprobe analyses were performed on 6 polished sections of gneiss and 1 polished section from a gold-bearing vein, using the Cameca SX-50 electron microprobe and Probe for Windows software at the University of Alaska Fairbanks. Silicate compositions were measured using a 10 micron beam at 15 nA on wavelength dispersive spectrometers. Well-characterized natural and synthetic specimens were employed as standards. On-peak counts were collected for 10 seconds and background counts were collected for 5 seconds. Five points were selected for each silicate. This data was ZAF (atomic mass, absorbance, and fluorescence) corrected; following which poor-quality results were removed from the data set. Opaque minerals, including gold and bismuth, were identified in the gold-bearing vein using the EDS with a standardless analysis routine. Microprobe analyses are presented in table 8. Process_Date: Unknown Process_Step: Process_Description: Lab - Fluid inclusion experiments were performed at the USGS facility in Denver, Colorado, using a Linkam heating/freezing stage cooled with liquid nitrogen. All heating and cooling measurements were computer controlled, with standard-based calibrations performed prior to each session. Chips of a section up to 3 mm square were taken from eight doubly polished sections, 100 to 150 microns thick, and analyzed individually. The chips were broken from the section after the glue attaching the section to the slide was dissolved with acetone. Heating and cooling measurements were performed using Linksys, a windows-driven program, which has precision of 0.1 degree Celsius. Digital photographs of inclusions were taken within this program. The low-temperature measurements included CO2 melting temperatures and clathrate melting temperatures. All measurements except for final homogenization were performed systematically on each inclusion before moving onto the next. After several inclusions were measured, final homogenization temperatures were measured for as many inclusions as possible. Final homogenization observations were made for surrounding inclusions where possible. Once stretching of an inclusion was indicated (by non-repeatable heating experiments), no more homogenization measurements were collected from that chip. Fluid inclusion data is presented in table 9, 10 and 11. Process_Date: Unknown Process_Step: Process_Description: Lab - Five samples were dated using the 40Ar/39Ar technique, as described in detail by Douglas (1996). The samples were irradiated for 20 megawatt hours in a reactor at McMaster University along with standard sample MMHB-1 with age 513.9 Ma. The standard is used to estimate J, the irradiation parameter and the flux gradient of the reactor. The irradiated samples were then analyzed in the mass spectrometer at the University of Alaska Fairbanks geochronology laboratory, using an 40Ar/39Ar step heating routine 39-40 days after irradiation. The measured argon isotopes were corrected for mass discrimination as well as for interference of Ca, K, and CI produced from the reactor. Blanks (inlets) were run to determine background levels of argon. Sample measurements were corrected for this background argon. Ages are quoted with a + 1 sigma level and calculated using the constants of Steiger and Jaeger (1977). Argon dating results are presented in table 13 and 14. Source_Used_Citation_Abbreviation: Douglas, 1996 Source_Used_Citation_Abbreviation: Steiger and Jaeger, 1977 Source_Used_Citation_Abbreviation: McDougall and Harrison, 1988 Process_Date: Unknown Process_Step: Process_Description: Lab - Trace element analyses (Rb, Sr, Y, Nb, Zr) for 34 of the samples were performed at the University of Alaska, Fairbanks on splits of the pulverized samples using a Rigaku wavelength-dispersive XRF, and a routine created by Rainer Newberry (described in Cameron, 2000). Source_Used_Citation_Abbreviation: Cameron, 2000 Process_Date: Unknown Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0001 Longitude_Resolution: 0.0001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.25722210088 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: table1.csv Entity_Type_Definition: List of grab samples, approximate locations, assigned rock types and analyses. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table1 Attribute: Attribute_Label: Sample Attribute_Definition: Items in the Sample# field. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: UTMX Attribute_Definition: Easting for UTM Zone 6, NAD 27 Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 525000 Range_Domain_Maximum: 542000 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: UTMY Attribute_Definition: Northing for UTM Zone 6, NAD 27 Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7133090 Range_Domain_Maximum: 7195200 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Rock type Attribute_Definition: Description of rock sample Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Description of rock type Attribute: Attribute_Label: Mag. Susc. (*10^-3 SI) Attribute_Definition: Magnetic susceptibility made with a Kappameter model KT-6 magnetic susceptibility meter. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.05 Range_Domain_Maximum: 1.3 Attribute_Units_of_Measure: SI Attribute: Attribute_Label: T.S. Attribute_Definition: Thin section Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Marked "X" if a thin section was made. Attribute: Attribute_Label: P.S. Attribute_Definition: Polished section Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Marked "X" if a polished section was made. Attribute: Attribute_Label: WRA Attribute_Definition: Whole rock analysis Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Marked "X" if whole rock analysis was performed on sample. Attribute: Attribute_Label: Geotherm Attribute_Definition: microprobe and/or geothermobarometric analysis Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Marked "X" if microprobe or geothermobarometric analysis was performed on sample. Attribute: Attribute_Label: FI Attribute_Definition: Fluid inclusion study Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Marked "X" if fluid inclusion analysis was performed on sample. Attribute: Attribute_Label: Ar/Ar Attribute_Definition: 40Ar/39Ar radiometric dating Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Marked "X" if argon dating was performed on sample. Detailed_Description: Entity_Type: Entity_Type_Label: table2.csv Entity_Type_Definition: Modal mineralogy of gneisses. Values are visual estimates of percentages from petrographic analysis. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table 2 Attribute: Attribute_Label: Sample Attribute_Definition: Items in the Sample field. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: UTMX Attribute_Definition: Easting for UTM Zone 6, NAD 27 Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 525000 Range_Domain_Maximum: 542000 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: UTMY Attribute_Definition: Northing for UTM Zone 6, NAD 27 Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7133090 Range_Domain_Maximum: 7195200 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Quartz Attribute_Definition: Quartz Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Plag Attribute_Definition: Plagioclase Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Kspar Attribute_Definition: Potassium feldspar Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Biot Attribute_Definition: Biotite Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Opaques Attribute_Definition: Opaque minerals Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Sill Attribute_Definition: Sillimanite Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Gar Attribute_Definition: Garnet Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Chl Attribute_Definition: Chlorite Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Detailed_Description: Entity_Type: Entity_Type_Label: table3.csv Entity_Type_Definition: Estimated modal mineral abundances (volume %) in felsic dike thin sections. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table3 Attribute: Attribute_Label: Sample Attribute_Definition: Items in the Sample field. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: Group Attribute_Definition: A suite of rocks that are similar in their mineralogy. The rocks were grouped based on having a molecular proportion of aluminum oxide greater than that of sodium oxide and potassium oxide combined. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: strongly peraluminous magmatic suite of rocks Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Weakly- to non-peraluminous magmatic suite of rocks Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute: Attribute_Label: Qtz Attribute_Definition: Estimated modal mineral abundance of quartz (volume %) in felsic dike thin section. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent volume Attribute: Attribute_Label: Plag Attribute_Definition: Estimated modal mineral abundance of plagioclase (volume %) in felsic dike thin section. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent volume Attribute: Attribute_Label: Kspar Attribute_Definition: Estimated modal mineral abundance of potassium feldspar (volume %) in felsic dike thin section. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent volume Attribute: Attribute_Label: Tourm Attribute_Definition: Estimated modal mineral abundance of tourmaline (volume %) in felsic dike thin section. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent volume Attribute: Attribute_Label: Mica Attribute_Definition: Estimated modal mineral abundance of white mica and minor biotite (volume %) in felsic dike thin section. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent volume Attribute: Attribute_Label: Point Cnts. Attribute_Definition: Point counts: number of points counted Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 109 Attribute_Units_of_Measure: point counts Detailed_Description: Entity_Type: Entity_Type_Label: table4.csv Entity_Type_Definition: XRF major oxide and normative values for gneiss samples in the Richardson study area. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table4 Attribute: Attribute_Label: Sample Attribute_Definition: Items in the Sample field. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: SiO2 Attribute_Definition: Silicon dioxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: TiO2 Attribute_Definition: Titanium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Al2O3 Attribute_Definition: Aluminum oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Fe2O3 Attribute_Definition: Iron oxide (+3) values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MnO Attribute_Definition: Manganese oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MgO Attribute_Definition: Magnesium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: CaO Attribute_Definition: Calcium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Na2O Attribute_Definition: Sodium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: K2O Attribute_Definition: Potassium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: P2O5 Attribute_Definition: Phosphorus pentoxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: LOI Attribute_Definition: Loss on Ignition (LOI) values shown in percent. Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Total Attribute_Definition: Calculated oxide and LOI total for sample shown in percent. Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 105 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: %AN Attribute_Definition: (Normative Anorthite/Normative Anorthite + Normative Albite) *100 Attribute_Definition_Source: Rainer Newberry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Q Attribute_Definition: CIPW Norm quartz calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: or Attribute_Definition: CIPW norm orthoclase calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: ab Attribute_Definition: CIPW norm albite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: an Attribute_Definition: CIPW norm anorthite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: C Attribute_Definition: CIPW norm corundum calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: hy Attribute_Definition: CIPW norm hypersthene calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: mt Attribute_Definition: CIPW norm magnetite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: il Attribute_Definition: CIPW norm ilmenite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: hem Attribute_Definition: CIPW norm hematite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: ap Attribute_Definition: CIPW norm apatite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Detailed_Description: Entity_Type: Entity_Type_Label: table5.csv Entity_Type_Definition: XRF major and minor element results for amphibolite samples 127 and 158B. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table5 Attribute: Attribute_Label: Sample Attribute_Definition: Items in the Samples field. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: SiO2 Attribute_Definition: Silicon dioxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: TiO2 Attribute_Definition: Titanium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Al2O3 Attribute_Definition: Aluminum oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Fe2O3 Attribute_Definition: Iron oxide (+3) values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MnO Attribute_Definition: Manganese oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MgO Attribute_Definition: Magnesium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: CaO Attribute_Definition: Calcium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Na2O Attribute_Definition: Sodium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: K2O Attribute_Definition: Potassium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: P2O5 Attribute_Definition: Phosphorus pentoxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: LOI Attribute_Definition: Loss on Ignition (LOI) values shown in percent. Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Total Attribute_Definition: Calculated oxide and LOI total for sample shown in percent. Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 105 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Ba Attribute_Definition: Barium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Sr Attribute_Definition: Strontium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Y Attribute_Definition: Yttrium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Nb Attribute_Definition: Niobium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Zr Attribute_Definition: Zirconium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Rb Attribute_Definition: Rubidium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Detailed_Description: Entity_Type: Entity_Type_Label: table6.csv Entity_Type_Definition: XRF major oxide and normative values for igneous rock samples in the Richardson study area. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table6 Attribute: Attribute_Label: Sample Attribute_Definition: Items in the Sample field. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: Rock type Attribute_Definition: Description of rock Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Description of rock type Attribute: Attribute_Label: SiO2 Attribute_Definition: Silicon dioxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: TiO2 Attribute_Definition: Titanium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Al2O3 Attribute_Definition: Aluminum oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Fe2O3 Attribute_Definition: Iron oxide (+3) values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MnO Attribute_Definition: Manganese oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MgO Attribute_Definition: Magnesium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: CaO Attribute_Definition: Calcium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Na2O Attribute_Definition: Sodium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: K2O Attribute_Definition: Potassium oxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: P2O5 Attribute_Definition: Phosphorus pentoxide values acquired by analysis with X-ray Fluorescence (XRF) and shown in percent (%). Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: LOI Attribute_Definition: Loss on Ignition (LOI) values shown in percent. Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Total Attribute_Definition: Calculated oxide and LOI total for sample shown in percent. Attribute_Definition_Source: Bondar-Clegg Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 105 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: %AN Attribute_Definition: (Normative Anorthite/Normative Anorthite + Normative Albite) *100 Attribute_Definition_Source: Rainer Newberry Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Q Attribute_Definition: CIPW Norm quartz calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: or Attribute_Definition: CIPW norm orthoclase calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: ab Attribute_Definition: CIPW norm albite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: an Attribute_Definition: CIPW norm anorthite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: C Attribute_Definition: CIPW norm corundum calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: hy Attribute_Definition: CIPW norm hypersthene calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: mt Attribute_Definition: CIPW norm magnetite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: il Attribute_Definition: CIPW norm ilmenite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: hem Attribute_Definition: CIPW norm hematite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: ap Attribute_Definition: CIPW norm apatite calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: ru Attribute_Definition: CIPW norm rutile calculation Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent volume Detailed_Description: Entity_Type: Entity_Type_Label: table7.csv Entity_Type_Definition: Trace element compositions (in ppm) of igneous rocks from the Richardson study area. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table7 Attribute: Attribute_Label: Sample Attribute_Definition: Items in the Sample field. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: Unit Attribute_Definition: Name of a structural feature with a distinctive appearance. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Name of a structural feature with a distinctive appearance. Attribute: Attribute_Label: Ba Attribute_Definition: Barium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Nb Attribute_Definition: Niobium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Rb Attribute_Definition: Rubidium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Sr Attribute_Definition: Strontium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Y Attribute_Definition: Yttrium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Zr Attribute_Definition: Zirconium values acquired by analysis with X-ray Fluorescence (XRF) and shown in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Attribute: Attribute_Label: Nb+Y Attribute_Definition: Total of Niobium and Yttrium Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100000 Attribute_Units_of_Measure: ppm Detailed_Description: Entity_Type: Entity_Type_Label: table8.csv Entity_Type_Definition: Samples employed for Geothermometry and Geobarometry from Richardson field area. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table8 Attribute: Attribute_Label: Sample Attribute_Definition: Items in the Sample field. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: UTM N Attribute_Definition: Northing for UTM Zone 6, NAD 27 Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7133090 Range_Domain_Maximum: 7195200 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: UTM E Attribute_Definition: Easting for UTM Zone 6, NAD 27 Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 525000 Range_Domain_Maximum: 542000 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Fault block Attribute_Definition: Direction of fault block Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NE Enumerated_Domain_Value_Definition: Northeast Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: E Enumerated_Domain_Value_Definition: East Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: W Enumerated_Domain_Value_Definition: West Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: S Enumerated_Domain_Value_Definition: South Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NW Enumerated_Domain_Value_Definition: Northwest Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute: Attribute_Label: Mineral assemblage present Attribute_Definition: Minerals present in rock sample. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Quartz-plagioclase-biotite-muscovite-sillimanite-garnet Attribute_Domain_Values: Unrepresentable_Domain: Quartz-plagioclase-biotite-sillimanite-garnet Attribute_Domain_Values: Unrepresentable_Domain: Quartz-plagioclase-biotite-garnet Attribute_Domain_Values: Unrepresentable_Domain: Quartz-plagioclase-biotite-sillimanite-garnet Attribute_Domain_Values: Unrepresentable_Domain: Quartz-plagioclase-biotite-garnet Attribute: Attribute_Label: Geobarometer(s) employed Attribute_Definition: Mineral assemblages used in determining sample temperature and pressure conditions. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: garnet-sillimanite-plagioclase-quartz Enumerated_Domain_Value_Definition_Source: Hodges and Spear, 1982; Hodges and Crowley, 1985; Newton and Haselton, 1981; Ganguly and Saxena, 1984 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: garnet-muscovite-plagioclase-biotite Enumerated_Domain_Value_Definition_Source: Hodges and Crowley, 1985; Ghent and Stout, 1981; Hoisch, 1990 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: garnet-muscovite-plagioclase-quartz Enumerated_Domain_Value_Definition_Source: Hoisch, 1990 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: garnet-muscovite-sillimanite-quartz Enumerated_Domain_Value_Definition_Source: Hodges and Crowley, 1985 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 5 Enumerated_Domain_Value_Definition: garnet-muscovite-biotite-sillimanite Enumerated_Domain_Value_Definition_Source: Hodges and Crowley, 1985 Attribute: Attribute_Label: Temp Est. (degree C) Attribute_Definition: Calculated temperature experienced by metamorphic rocks in the Richardson area. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 450 Range_Domain_Maximum: 725 Attribute_Units_of_Measure: degree Celsius Detailed_Description: Entity_Type: Entity_Type_Label: table9.csv Entity_Type_Definition: Average microprobe data of mineral assemblages for geothermobarometric calculations. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table9 Attribute: Attribute_Label: Sample Attribute_Definition: Items in the Sample field. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: Mineral Attribute_Definition: Mineral analyzed by microprobe. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: g Enumerated_Domain_Value_Definition: garnet Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: b Enumerated_Domain_Value_Definition: biotite Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: h Enumerated_Domain_Value_Definition: hornblende Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: wm Enumerated_Domain_Value_Definition: white mica Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: p Enumerated_Domain_Value_Definition: plagioclase Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute: Attribute_Label: Na2O Attribute_Definition: Sodium oxide average values acquired by analysis with microprobe and shown in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MgO Attribute_Definition: Magnesium oxide average values acquired by analysis with microprobe and shown in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Al2O3 Attribute_Definition: Aluminum oxide average values acquired by analysis with microprobe and shown in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: SiO2 Attribute_Definition: Silicon dioxide average values acquired by analysis with microprobe and shown in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: K2O Attribute_Definition: Potassium oxide average values acquired by analysis with microprobe and shown in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: CaO Attribute_Definition: Calcium oxide average values acquired by analysis with microprobe and shown in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: TiO2 Attribute_Definition: Titanium dioxide average values acquired by analysis with microprobe and shown in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: FeO Attribute_Definition: Iron oxide (+2) average values acquired by analysis with microprobe and shown in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MnO Attribute_Definition: Manganese oxide average values acquired by analysis with microprobe and shown in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: H2Oc Attribute_Definition: Calculated water content in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Total Attribute_Definition: Total of major and minor oxides and water in percent (%). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.01 Range_Domain_Maximum: 105 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Na Attribute_Definition: Sodium cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: Mg Attribute_Definition: Magnesium cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: Al Attribute_Definition: Aluminum cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: Si Attribute_Definition: Silicon cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: K Attribute_Definition: Potassium cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: Ca Attribute_Definition: Calcium cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: Ti Attribute_Definition: Titanium cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: Fe Attribute_Definition: Iron cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: Mn Attribute_Definition: Manganese cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: Ca site tot Attribute_Definition: Number of cations in site containing calcium. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: O Attribute_Definition: Total oxygen cations per formula unit. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: Fe/Mg Attribute_Definition: Number of iron cations divided by the number of magnesium cations. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard recalculation of compositions. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: %An Attribute_Definition: The mole percent anorthite component in plagioclase. Attribute_Definition_Source: Garth Graham, Jessica F. Larsen Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: -lnKb-g Attribute_Definition: Negative log of (Fe/Mg cations (biotite) - Fe/Mg cations (garnet)). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Standard calculation. See W.A. Deer, R.A. Howie, J. Zussman (1992). An introduction to the rock-forming minerals, 2nd ed.. Longman Scientific & Technical, Harlow for more information. Attribute: Attribute_Label: avg T,P Attribute_Definition: Average temperature in degrees C and average pressure in kilobars. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Calculated temperature and pressure using several models: Perchuk and Lavrenteva, 1984; Kleemann and Reinhardt, 1994; and Berman, 1990. Detailed_Description: Entity_Type: Entity_Type_Label: table10.csv Entity_Type_Definition: Fluid inclusion samples, locations, and assay values of sampled interval. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table10 Attribute: Attribute_Label: Slide (JGA-) Attribute_Definition: Slide identification number starting with JGA- Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: site Attribute_Definition: Sample location Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: UTM E Attribute_Definition: Easting for UTM Zone 6, NAD 27 Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 525000 Range_Domain_Maximum: 542000 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: UTM N Attribute_Definition: Northing for UTM Zone 6, NAD 27 Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7133090 Range_Domain_Maximum: 7195200 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Au Assay value (ppm) Attribute_Definition: Gold assay value in parts per million (ppm). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 53 Attribute_Units_of_Measure: part per million Attribute: Attribute_Label: Gold Group Attribute_Definition: Sample classification based on the gold assay value of the entire interval containing the quartz vein. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: high grade gold Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: significant gold interval Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: gold-bearing interval Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: gold below detection level Enumerated_Domain_Value_Definition_Source: Garth Graham Detailed_Description: Entity_Type: Entity_Type_Label: table11.csv Entity_Type_Definition: Fluid inclusion data and estimated fluid parameters. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table11 Attribute: Attribute_Label: Hole Attribute_Definition: Number of the inclusion hole analyzed Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: A unique sample identifier Attribute: Attribute_Label: Slide Attribute_Definition: Number of the sample slide analyzed. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Sample BK1-035 in Table 9 Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Sample BK1-65 in table 9 Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: Sample BK1-082 in Table 9 Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 11 Enumerated_Domain_Value_Definition: Sample BK2-047 (AuVn) in table 9 Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 12 Enumerated_Domain_Value_Definition: Sample BK2-012 in table 9. Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 13 Enumerated_Domain_Value_Definition: Sample BK2-135 in Table 9. Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 15 Enumerated_Domain_Value_Definition: Sample BK2-152(s15) in Table 9. Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Buckeye Enumerated_Domain_Value_Definition: Sample B3 (Buckeye Discovery) in Table 9. Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute: Attribute_Label: Inclusion Attribute_Definition: Number of the inclusion analyzed. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Number in field depends on how many inclusions where able to be ultimately analyzed. Attribute: Attribute_Label: CO2 Attribute_Definition: Melting temperature of carbon dioxide in degree Celsius. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Averaged melting temperature base on number of inclusions analyzed. Attribute: Attribute_Label: Clath Attribute_Definition: Clathrate melting temperature in degree Celsius. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Average clathrate melting of analyzed inclusions. Attribute: Attribute_Label: Cohom Attribute_Definition: Partial homogenization of carbonic phase in degree Celsius. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Average cohomogenization temperature of carbonic phase. Attribute: Attribute_Label: Homog Attribute_Definition: Total homogenization of carbonic pase in degree Celsius. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Average total homogenization temperature for carbonic phase. Attribute: Attribute_Label: Au group Attribute_Definition: Sample classification based on the gold assay value of the entire interval containing the quartz vein. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: significant gold interval Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: gold-bearing interval Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: gold below detection level Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute: Attribute_Label: Volume Attribute_Definition: Volume of vapor within inclusion shown in percent. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Bars Attribute_Definition: Fluid inclusion pressure in bars after Angus and others, 1976. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Fluid inclusion pressure in bars. Attribute: Attribute_Label: Density Attribute_Definition: CO2 density of the inclusion after Burress, 1981. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Calculation of CO2 density. Attribute: Attribute_Label: MoleH2O Attribute_Definition: Calculated mole percent of H2O in inclusion fluids. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Est. Press Attribute_Definition: Estimated minimum pressure at time of inclusion formation in bars. Employed P-T density isochores from Kennedy, 1954 and diagrams from Brown and Lamb, 1989. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Estimated pressure at time of inclusion formation. Detailed_Description: Entity_Type: Entity_Type_Label: table12.csv Entity_Type_Definition: Comparison between Bald Knob, Democrat, Ryan Lode fluid inclusion data. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table12 Attribute: Attribute_Label: Sample Attribute_Definition: Unique sample identifier Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Demo 1 Enumerated_Domain_Value_Definition: Democrat lode deposit Enumerated_Domain_Value_Definition_Source: Pakhomova and others, 1995 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Demo 2 Enumerated_Domain_Value_Definition: Democrat lode sample Enumerated_Domain_Value_Definition_Source: Pakhomova and others, 1995 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: BKhiP Enumerated_Domain_Value_Definition: Bald Knob high pressure sample type Enumerated_Domain_Value_Definition_Source: Garth Graham, this study. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: BKloP Enumerated_Domain_Value_Definition: Bald Knob low pressure sample. Enumerated_Domain_Value_Definition_Source: Garth Graham, this study. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ryan Lode Enumerated_Domain_Value_Definition: Ryan lode deposit, Fairbanks district. Enumerated_Domain_Value_Definition_Source: McCoy and others 1997 Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: BKeye1 Enumerated_Domain_Value_Definition: Buckeye high grade vein. Enumerated_Domain_Value_Definition_Source: Garth Graham, this study. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Bkeye2 Enumerated_Domain_Value_Definition: Buckeye high grade vein. Enumerated_Domain_Value_Definition_Source: Garth Graham, this study. Attribute: Attribute_Label: Size (micron) Attribute_Definition: Size range of inclusions in microns Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Size range of inclusions. Attribute: Attribute_Label: TmCO2 (degree C) Attribute_Definition: Final melting temperature of solid CO2 in degree Celsius. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Range of final melting temperatures of solid CO2. Attribute: Attribute_Label: Clathrate T. (degree C) Attribute_Definition: Final clathrate melting temperature range in degree Celsius. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Range of final melting temperatures of solid CO2. Attribute: Attribute_Label: Th (degree C) Attribute_Definition: Temperature range of total homogenization of carbonic phase in degree Celsius. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Temperature range of total homogenization of carbonic phase. Attribute: Attribute_Label: Volume % vapor Attribute_Definition: Estimated percentage of total in inclusion of vapor. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Range of estimated percentages of vapor in inclusion. Attribute: Attribute_Label: Salinity (% NaCl) Attribute_Definition: Salinity of fluid expressed as weight percent (%) NaCl equivalent. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Range of values in percent or "Low" value of NaCl in fluid. Attribute: Attribute_Label: Mol % CO2 Attribute_Definition: Molar percent of CO2 in inclusion. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Value, range, average, variable or unknown molar percent of CO2 in inclusions. Attribute: Attribute_Label: Trap P (bars) Attribute_Definition: Estimated pressure in bars at time of formation of inclusions. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Range or "unknown" value of pressure of inclusions at time of formation. Detailed_Description: Entity_Type: Entity_Type_Label: table13.csv Entity_Type_Definition: Interpreted 40Ar/39Ar ages (in Ma) for Richardson area samples. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table13 Attribute: Attribute_Label: Sample number (mineral) Attribute_Definition: Unique sample identifier and mineral analyzed in sample. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Unique sample identifier Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: B Enumerated_Domain_Value_Definition: biotite Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: WM Enumerated_Domain_Value_Definition: white mica Enumerated_Domain_Value_Definition_Source: Garth Graham Attribute: Attribute_Label: Low-temp fraction(s) age (%Ar) Attribute_Definition: Apparent ages yielded from heating at low temperature in millions of years (Ma). %Ar equals total 39Ar released in the fraction(s). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Age dates +/- standard error Attribute_Domain_Values: Unrepresentable_Domain: Percent total 39Ar released in fractions. Attribute: Attribute_Label: High-temp fraction(s) age (%Ar) Attribute_Definition: Apparent ages yielded from heating at high temperature in millions of years (Ma). %Ar equals percent total 39Ar released in the fraction(s). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Age dates +/- standard error Attribute_Domain_Values: Unrepresentable_Domain: Percent total 39Ar released in fractions. Attribute: Attribute_Label: Plateau age (%Ar) Attribute_Definition: Plateau age is a measure of the time elapsed since the mineral cooled to below its closure temperature. Age is in millions of years (Ma). %Ar equals percent total 39Ar released in the fraction(s). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Age dates +/- standard error Attribute_Domain_Values: Unrepresentable_Domain: Percent total 39Ar released in fractions. Attribute: Attribute_Label: Interpreted age Attribute_Definition: Weighted average of all the Ar fractions released and is equivalent to a conventional K-Ar age. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Estimated age/age range in millions of years with standard error. Detailed_Description: Entity_Type: Entity_Type_Label: table14.csv Entity_Type_Definition: Ages of geologic events in the Richardson area as suggested by radiometric dating. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table14 Attribute: Attribute_Label: Event Attribute_Definition: Geologic event that occurred at interpreted age. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Geological event description. Attribute: Attribute_Label: Interpreted Age Attribute_Definition: Approximate interpreted age in Ma of event. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Approximate age in Ma of event. Attribute: Attribute_Label: Evidence Attribute_Definition: Geological evidence for interpreted age of event. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Description of evidence for interpreted age of event. Detailed_Description: Entity_Type: Entity_Type_Label: table15.csv Entity_Type_Definition: 40Ar/39Ar step-heating results and data. Entity_Type_Definition_Source: Garth Graham Entity_Attribute_Layer_Name: table15 Attribute: Attribute_Label: Laser Power Attribute_Definition: Laser power in milliwatts. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 8800 Attribute_Units_of_Measure: mW Attribute: Attribute_Label: Fraction 39Ar Attribute_Definition: The fraction of 39Ar released in each step of a run. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 1 Attribute: Attribute_Label: +/- Attribute_Definition: 1-sigma error Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: 1-sigma error unitless. Attribute: Attribute_Label: 37Ar/39Ar measured Attribute_Definition: Ratio of 37Ar to 39Ar. Measured isotopic ratios are corrected for reactor induced interferences and decay of 37Ar and 39Ar. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Unitless ratio. Attribute: Attribute_Label: +/- Attribute_Definition: 1-sigma error Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: 1-sigma error unitless. Attribute: Attribute_Label: 36Ar/39Ar measured Attribute_Definition: Ratio of 36Ar to 39Ar. Measured isotopic ratios are corrected for reactor induced interferences and decay of 37Ar and 39Ar. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Unitless ratio. Attribute: Attribute_Label: +/- Attribute_Definition: 1-sigma error. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: 1-sigma error unitless. Attribute: Attribute_Label: % Atm. 40Ar* Attribute_Definition: Percent of atmospheric 40Ar in the sample assuming an initial 40Ar/36Ar ratio of 295.5. Results include error. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Ca/K Attribute_Definition: ratio of calcium to potassium Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Unitless ratio. Attribute: Attribute_Label: Cl/K Attribute_Definition: Ratio of chlorine to potassium. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Unitless ratio. Attribute: Attribute_Label: 40*/39K Attribute_Definition: The ratio of radiogenic 40Ar to 39Ar produced from potassium calculated using the equations and constants quoted in McDougall and Harrison (1988). Attribute_Definition_Source: Paul Layer, Garth Graham Attribute_Domain_Values: Unrepresentable_Domain: Unitless ratio. Attribute: Attribute_Label: Age (Ma) Attribute_Definition: Ages calculated from 40A*/39K using the equations and constants quoted in McDougall and Harrison (1988). Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 4200 Attribute_Units_of_Measure: Ma Attribute: Attribute_Label: +/- (Ma) Attribute_Definition: 1-sigma error in Ma. Attribute_Definition_Source: Garth Graham Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 4200 Attribute_Units_of_Measure: Ma Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: 907-451-5020 Contact_TDD/TTY_Telephone: None available Contact_Facsimile_Telephone: 907-451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Contact_Instructions: Please view our web site (http://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. 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Metadata_Reference_Information: Metadata_Date: 20080506 Metadata_Review_Date: 20080506 Metadata_Future_Review_Date: 20090905 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Diana Jozwik Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: Alaska Postal_Code: 99709-3707 Contact_Voice_Telephone: 907-451-5010 Contact_Facsimile_Telephone: 907-451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays. Contact_Instructions: Please contact us through the e-mail address above whenever possible. 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