Freeman, L.K. Werdon, M.B. Szumigala, D.J. Andrew, J.E. Newberry, R.J. Athey, J.E. 2009 v. 1.1 tabular digital data, report Raw Data File RDF 2009-1 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 69 pp. http://www.dggs.alaska.gov/pubs/id/20041 Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys carried out a geological field survey, including mapping and sampling in the eastern part of the Bonnifield mining district in the Fairbanks A-1, A-2, Healy D-1 and D-2 quadrangles, Alaska from June 16 to July 18, 2008. The fieldwork provides basic information critical to building an understanding of Alaska geology and is part of an integrated program of airborne geophysical surveys followed by geological mapping. During 2008, 242 rock samples were collected for geochemical trace-element analysis, 106 rock samples were collected for whole rock (major- and minor-oxide and petrogenetically important trace element) analyses, and 7 samples were collected for analysis of non-carbonate carbon content. Version 1.1 was released to correct several errors in the original version; please see the "Data Quality, Process Step" section below for specific errors and corrections. The analyses in this report were acquired as part of a geologic mapping program, the purpose of which is to provide 1:50,000-scale geologic mapping of a portion of the Bonnifield airborne geophysical surveys released by DGGS in 2007 (Burns et al., 2007). The geophysical survey (helicopter-based aeromagnetic and electromagnetic data) and geologic mapping are part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program, a special multi-year investment by the State of Alaska to expand Alaska's geologic and mineral resources knowledge base, catalyze future private-sector mineral exploration and development, and guide state resource development planning. The data are available in tabular format as comma delimited ascii files organized into three layers, each comprised of three tables as described in this metadata file under the "Entity_and_Attribute_Information" section. The layers are as follows: >Trace-element rock geochemistry: sample locations and descriptions, geochemical data, analytical methods and detection limits (Tables 1, 2, 5) >Whole-rock major-oxide, minor-oxide, trace-element: sample locations and descriptions, geochemical data, analytical methods and detection limits (Tables 3, 4, 6) >Non-carbonate carbon geochemistry: sample locations and descriptions, and geochemical data (Table 7) 20080616 20080718 ground condition Complete None planned -147.8028 -147.1864 64.0634 62.9455 ISO 19115 Topic Category geoscientificInformation None Geochemistry Major Oxides STATEMAP Project Stream Sediments Trace Metals None Alaska, State of Alaska Range Fairbanks Quadrangle Healy Quadrangle Denali Borough Wood River West Fork Little Delta River Dry Creek Kansas Creek Chute Creek Rogers Creek Sheep Creek Glacier Creek Threemile Creek Snow Mountain Gulch Slide Creek Glory Creek Red Mountain Creek Newman Creek Forgotten Creek Slate Creek WTF (Western Tundra Flats) prospect Red Mountain Creek prospect Dry Creek prospect LEA Creek prospect Buzby prospect Smog prospect Glory Creek prospect Kansas Creek prospect Dry Creek placer mine Newman Creek placer mine None Totatlanika Schist Keevy Peak Formation Healy Schist None Devonian Mississippian Cretaceous Tertiary 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). 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. This project is part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program funded by the Alaska State Legislature and managed by State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. Partial funding for the geologic mapping and geochemical analyses was also provided through the U.S. Geological Survey STATEMAP Program under award number 08HQAG0051 and the Alaska State General Fund. Adobe Acrobat Reader, any spreadsheet program or text editor. Burns, L.E. Fugro Airborne Surveys Corp. Stevens Exploration Management Corp. 2007 vector digital data Alaska Division of Geological & Geophysical Surveys Geophysical Report GPR 2007-1 Fairbanks, AK Alaska Division of Geological & Geophysical Surveys Burns, L.E. Fugro Airborne Surveys Corp. Stevens Exploration Management Corp. 2007 map Alaska Division of Geological &amp; Geophysical Surveys Geophysical Report GPR 2007-1-1A Fairbanks Alaska Division of Geological & Geophysical Surveys 2 sheets, scale 1:63,360 http://www.dggs.alaska.gov/pubs/id/15763 Burns, L.E. Fugro Airborne Surveys Corp. Stevens Exploration Management Corp. 2007 map Alaska Division of Geological &amp; Geophysical Surveys Geophysical Report GPR 2007-1-1C Fairbanks Alaska Division of Geological & Geophysical Surveys 2 sheets, scale 1:63,360 http://www.dggs.alaska.gov/pubs/id/15765 Burns, L.E. Fugro Airborne Surveys Corp. Stevens Exploration Management Corp. 2007 map Alaska Division of Geological &amp; Geophysical Surveys Geophysical Report GPR 2007-1-2A Fairbanks Alaska Division of Geological & Geophysical Surveys 2 sheets, scale 1:63,360 http://www.dggs.alaska.gov/pubs/id/15766 Burns, L.E. Fugro Airborne Surveys Corp. Stevens Exploration Management Corp. 2007 map Alaska Division of Geological &amp; Geophysical Surveys Geophysical Report GPR 2007-1-3A Fairbanks Alaska Division of Geological & Geophysical Surveys 2 sheets, scale 1:63,360 http://www.dggs.alaska.gov/pubs/id/15768 Burns, L.E. Fugro Airborne Surveys Corp. Stevens Exploration Management Corp. 2007 map Alaska Division of Geological &amp; Geophysical Surveys Geophysical Report GPR 2007-1-4A Fairbanks Alaska Division of Geological & Geophysical Surveys 2 sheets, scale 1:63,360 http://www.dggs.alaska.gov/pubs/id/20041 All rock geochemical and whole rock analyses were performed by by ALS Chemex. Rock samples were assayed for gold by inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion (FA-ICP). Trace-element geochemical analyses on rock samples were performed by inductive coupled plasma-atomic emission spectroscopy (ICP-AES) methods after four-acid, near-total digestion. This method of digestion is possibly incomplete for some elements and may result in lower analytical results for these elements. The elements that may be affected by incomplete digestion, analytical methods, and lower and upper reporting limits are tabulated in Table 5. Whole rock major and minor oxide analyses (Table 4) were performed by ALS Chemex. Major and minor element oxides were determined by X-ray fluorescence spectrometry following a lithium borate fusion (WEI-GRA06). Whole-Rock trace element anlyses of rock samples in Table 4 were performed by the University of Alaska Fairbanks Advanced Instrumentation Laboratory; trace element concentrations were determined by X-ray flourescence spectrometry of a pressed pellet. Analytical methods and detection limits of analyses in Table 4 are tabulated in Table 6. Non-carbonate carbon analyses (Table 7) were performed by ALS Chemex by induction furnace pyrolysis following dilute acid digestion. No topologic relationships are present in data. This dataset contains all (with one exception) of the analyses for samples collected for trace-element rock geochemistry, whole rock major and minor oxide geochemistry, and trace element stream sediment geochemistry in the eastern Bonnifield project area in the summer of 2008. Location data were downloaded from Garmin 12XL GPS units into an Access database. 6 A value of estimated position error in meters was calculated by Garmin 12XL GPS units and recorded for each sample location. Estimated position error calculated by Garmin 12XL units was not better than 3 meters and averaged approximately 6 meters. The GPS system suffers from calculation and geometric error. This error results from items such as error in satellite positions, mathematical error introduced by the formulas used by the GPS unit for calculating position, and errors caused by narrow satellite alignments. Estimated position error is a value determined by the GPS manufacturer for the calculation and geometric error as a whole. 'Selective availability', a deliberate degradation of GPS data managed by the U.S. government, was not operating during the time period these samples were collected. Fieldwork - Rock samples of visibly mineralized rock, or rock exhibiting features associated with mineralization, were preferentially collected and analyzed for geochemical trace elements. Spatially these rocks were collected randomly. 200807 Fieldwork - Rock samples collected for major-oxide, minor-oxide, and trace elements include samples representative of a typical lithology, igneous or possible meta-igneous samples in order to determine composition, and samples whose petrogenetically important trace-elements could indicate their original tectonic setting. Unweathered or minimally weathered rock samples were preferentially selected for analysis. Spatially these rocks were collected randomly. 200807 Fieldwork - Rock samples of visibly carbonaceous or graphitic metamorphic rock were preferentially collected and analyzed for non-carbonate carbon content. Spatially these rocks were collected randomly. Unweathered or minimally weathered rock samples were preferentially selected for analysis. 200807 Sample Preparation - Rock samples were crushed with a Terminator oscillating jaw crusher with chrome steel alloy plates so that at least 70 percent of the material passes through a -10 mesh (2 mm) screen. Representative aliquots of 250 grams each were taken using a stainless steel riffle splitter. These samples were then pulverized in a chrome steel ring mill so that 85 percent of the sample passed through a -200 mesh (75 micron) screen. Trace-element analyses, the whole rock major element analyses and the gold analyses were performed using representative splits of each 250 gram pulp. Sample preparation was conducted at the ALS Chemex sample preparation facility in Fairbanks, Alaska. 200810 Analysis - Initially, all rock samples for trace element geochemistry (Table 2) were assayed for gold by inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion (FA-ICP). Trace-element geochemical analyses were performed by inductive coupled plasma-atomic emission spectroscopy (ICP-AES) methods after four-acid, near-total digestion. This method of digestion is possibly incomplete for some elements and may result in lower analytical results for these elements. The elements that may be affected by incomplete digestion, analytical methods, and lower and upper reporting limits are tabulated in Table 5. All rock trace metal analyses were performed by ALS Chemex. 200811 Analysis - All whole rock analyses (Table 4) were performed by ALS Chemex. Major and minor element oxides were determined by X-ray fluorescence spectrometry following a lithium borate fusion (WEI-GRA06). Analytical methods and detection limits are tabulated in Table 8. 200811 Analysis - Any rock sample that contained trace metal values in the the initial trace element geochemical analysis were reanalized for the metals that were above detection by the following methods: Au, Fire assay with a gravimetric finish using a 30 gram sub-sample, Ba, using X-ray flourescence after lithium meta-borate fusion, Sb, Atomic Absorption spectomescopy after a hydochloric acid - potasium perclorate digestion, and Ag, As, Cu, Pb, and/or Zn by inductive coupled plasma-atomic emission spectroscopy (ICP-AES) methods after four-acid, near-total digestion All rock trace metal analyses were performed by ALS Chemex. 200811 Analysis - All rock samples for non-carbonate carbon content were digested using a dilute acid on a 1 gram sample charge, followed by combustion in a LECO furnace. at ALS Chemex Laboratory. 200811 Analysis - All whole rock trace element analyses were performed at the University of Alaska Fairbanks on a pressed pellet prepared from a sample pulp provided by ALS Chemex, analysis was completed using a wavelength dispersive X-ray flourescence spectrometer. 200912 Other - Latitude and Longitude values in Tables 1,3, and 7 were converted from UTM values using Corpscon ver. 6.0.1, a program created by the U.S. Army Corps of Engineers, Engineer Research and Development Center, Topographic Engineering Center, Alexandria, VA, http://www.tec.army.mil. 200909 Erratta Corrections - Errors were found in the original text and data that were released in November 2009; this version corrects those errors as follows: In table 1 descriptions are added for: 2008LF6B, 2008MBW288A, 2008MBW301A, 2008MBW311A, and 2008Z15B; coordinates are corrected for samples 2008RN342B, 2008RN342C, and 2008RN376A; and a previously misnumbered sample is corrected from 2010LF359B to 2010LF356B. In table 2 a previously misnumbered sample is corrected from 2010LF359B to 2010LF356B. In table 3 coordinates are corrected for samples 2008RN102A, 2008Z256B, 2008Z257D, 2008Z281A, and 2008Z350A; and a previously misnumbered sample is corrected from 2010Z265D to 2010Z356C. In table 4 a previously misnumbered sample is corrected from 2010Z265D to 2010Z356C. 201012 Point Universal Transverse Mercator 6 0.9996 -147 0 500000 0 coordinate pair 1 1 meters Trace-element rock geochemistry Universal Transverse Mercator 6 0.9996 -147 0 500000 0 coordinate pair 1 1 meters Whole-rock major-oxide, minor-oxide, trace-element Universal Transverse Mercator 6 0.9996 -147 0 500000 0 coordinate pair 1 1 meters Non-carbonate carbon geochemistry North American Datum of 1927 Clarke 1866 6378137 298.25722210088 Trace-element rock geochemistry Table1.csv Location and description of rock samples collected for trace-element geochemical analyses in the eastern Bonnifield mining district, Fairbanks and Healy quadrangles, Alaska Alaska Division of Geological & Geophysical Surveys Sample Number Unique sample identifier Alaska Division of Geological & Geophysical Surveys Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'JEA' = Jen Athey; 'JOE' = Joe Andrew; 'LF' = Larry Freeman; 'MBW' = Melanie Werdon; 'RN' = Rainer Newberry; 'Z' = David Szumigala. Latitude Latitude Alaska Division of Geological & Geophysical Surveys Latitude in decimal degrees, NAD 27 Longitude Longitude Alaska Division of Geological & Geophysical Surveys Longitude in decimal degrees, NAD 27 UTM E Easting Alaska Division of Geological & Geophysical Surveys Easting for UTM Zone 6, NAD 27 UTM N Northing Alaska Division of Geological & Geophysical Surveys Northing for UTM Zone 6, NAD 27 Zone UTM Zone Alaska Division of Geological & Geophysical Surveys 06W is UTM zone for all samples in this data set Description First part of brief rock description Alaska Division of Geological & Geophysical Surveys Characters 1 to 255 of brief rock description Description Extension 1 Extension of brief rock description for descriptions greater than 255 characters in length Alaska Division of Geological & Geophysical Surveys Characters 256 to 310 of brief rock description Description Extension 2 Extension of brief rock description for descriptions greater than 310 characters in length Alaska Division of Geological & Geophysical Surveys Characters 310 to 365 of brief rock description Trace-element rock geochemistry Table2.csv Trace-element geochemical analyses for rocks collected in the northerneastern Bonnifield mining district, Fairbanks and Healy quadrangles, Alaska. Elements that were not analyzed for a particular sample are left as an empty or null field. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Sample Number Unique sequential sample identifier Alaska Division of Geological & Geophysical Surveys and ALS Chemex Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'JEA' = Jen Athey; 'JOE' = Joe Andrew; 'LF' = Larry Freeman; 'MBW' = Melanie Werdon; 'RN' = Rainer Newberry; 'Z' = David Szumigala. Au Gold values acquired by analysis with inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion (FA-ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.001 10 ppm <0.001 Below detection limit of 0.001 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. >10 Above upper detection limit of 10 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Au(2) Duplicate gold values acquired by analysis with inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion (FA-ICP-AES) and shown in parts per million (ppm). The values in this column were obtained as part of a quality assurrance check. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.001 10 ppm --- Null value; element not analyzed by this method Alaska Division of Geological & Geophysical Surveys. Au(+) Gold values acquired by a 30g traditional fire assay fusion with a gravimetric finish (FA-GRAV) and shown in parts per million (ppm). This proceedure was done on any samples that had greater than detection limit (10000 ppm Au) on the original FA-ICP-AES analysis Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.001 10 ppm --- Null value; element not analyzed by this method Alaska Division of Geological & Geophysical Surveys. Ag Silver values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.5 100 ppm <0.5 Below detection limit of 0.5 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. >100 Above upper detection limit of 100 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Ag(+) Silver values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 1500 ppm --- Null value; element not analyzed by this method Alaska Division of Geological & Geophysical Surveys. Al Aluminum values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 50 % As Arsenic values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 5 10000 ppm <0.5 Below detection limit of 0.5 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. >10000 Above upper detection limit of 10000 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. As(+) Arsenic values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in weight percent (%). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 30 % --- Null value; element not analyzed by this method Alaska Division of Geological & Geophysical Surveys. Ba Barium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 ppm >10000 Above upper detection limit of 10000 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Ba(+) Barium values acquired by analysis with X-ray flourescence after lithium meta-borate fusion and shown in weight percent (%). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 50 % --- Null value; element not analyzed by this method Alaska Division of Geological & Geophysical Surveys. Be Beryllium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.5 1000 ppm <0.5 Below detection limit of 0.5 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Bi Bismuth values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 ppm <2 Below detection limit of 0.5 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Ca Calcium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 50 % <0.01 Below detection limit of 0.01% Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Cd Cadmium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.5 1000 ppm <0.5 Below detection limit of 0.5 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Co Cobalt values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 ppm <1 Below detection limit of 1 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Cr Chromium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 ppm <1 Below detection limit of 1 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Cu Copper values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 ppm <1 Below detection limit of 1 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. >10000 Above upper detection limit of 10000 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Cu(+) Copper values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in weight percent (%). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 40 % --- Null value; element not analyzed by this method Alaska Division of Geological & Geophysical Surveys. Fe Iron values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 50 % Ga Gallium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 ppm <10 Below detection limit of 10 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. >10000 Above upper detection limit of 10000 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. K Potassium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 10 % La Lanthanum values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 1000 ppm <10 Below detection limit of 10 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Mg Magnesium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 50 % <0.01 Below detection limit of 0.010 % Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Mn Manganese values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 5 100000 ppm Mo Molybdenum values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 ppm <1 Below detection limit of 1 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Na Sodium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 10 ppm <.01 Below detection limit of .01% Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Ni Nickel values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 ppm <1 Below detection limit of 1 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. P Phosphorus values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 ppm <10 Below detection limit of 10 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. >10000 Above upper detection limit of 10000 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Pb Lead values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 ppm <2 Below detection limit of 2 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. >10000 Above upper detection limit of 10000 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Pb(+) Lead values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in weight percent (%). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 20 % --- Null value; element not analyzed by this method Alaska Division of Geological & Geophysical Surveys. S Sulfur values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 10 % <0.01 Below detection limit of 0.01 % Alaska Division of Geological & Geophysical Surveys and ALS Chemex. >10.0 Above upper detection limit of 10.0% Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Sb Antimony values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 50 % Sb(+) Antimony values acquired by analysis with atomic absorption spectroscopy (AA) after a hydrochloric acid -- potasium perchlorate digestion and shown in weight percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 50 % --- Null value; element not analyzed by this method Alaska Division of Geological & Geophysical Surveys. Sc Scandium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 ppm <1 Below detection limit of 1 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Sr Strontium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 <1 Below detection limit of 1 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Th Thorium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex 20 10000 ppm <20 Below detection limit of 20 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Ti Titanium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 10 % <0.01 Below detection limit of 0.01 % Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Tl Thallium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 ppm <10 Below detection limit of 10 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. U Uranium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 ppm <10 Below detection limit of 10 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. V Vanadium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 ppm <1 Below detection limit of 1 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. W Tungsten values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 ppm <10 Below detection limit of 10 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Zn Zinc values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 ppm <2 Below detection limit of 2 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. >10000 Above upper detection limit of 10000 ppm Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Zn(+) Zinc values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in weight percent (%). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 40 % --- Null value; element not analyzed by this method Alaska Division of Geological & Geophysical Surveys. Whole-rock major-oxide, minor-oxide, trace-element Table3.csv Location and description of rocks collected for major-oxide, minor-oxide, and trace-element analyses in the in the eastern Bonnifield mining district, Fairbanks and Healy quadrangles, Alaska. Alaska Division of Geological & Geophysical Surveys Sample Number Unique sample identifier Alaska Division of Geological & Geophysical Surveys Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'JEA' = Jen Athey; 'JOE' = Joe Andrew; 'LF' = Larry Freeman; 'MBW' = Melanie Werdon; 'RN' = Rainer Newberry; 'Z' = David Szumigala. Latitude Latitude Alaska Division of Geological & Geophysical Surveys Latitude in decimal degrees, NAD 27 Longitude Longitude Alaska Division of Geological & Geophysical Surveys Longitude in decimal degrees, NAD 27 UTM E Easting Alaska Division of Geological & Geophysical Surveys Easting for UTM Zone 6, NAD 27 UTM N Northing Alaska Division of Geological & Geophysical Surveys Northing for UTM Zone 6, NAD 27 Zone UTM Zone Alaska Division of Geological & Geophysical Surveys 06W is UTM zone for all samples in this data set Description First part of brief rock description Alaska Division of Geological & Geophysical Surveys Characters 1 to 255 of brief rock description Description Extension 1 Extension of brief rock description for descriptions greater than 255 characters in length Alaska Division of Geological & Geophysical Surveys Characters 256 to 310 of brief rock description Description Extension 2 Extension of brief rock description for descriptions greater than 310 characters in length Alaska Division of Geological & Geophysical Surveys Characters 310 to 365 of brief rock description Description Extension 3 Extension of brief rock description for descriptions greater than 365 characters in length Alaska Division of Geological & Geophysical Surveys Characters 365 to 420 of brief rock description Whole-rock major-oxide, minor-oxide, trace-element Table4.csv Major-oxide, minor-oxide, and trace element analyses for rocks collected in the eastern Bonnifield mining district, Fairbanks and Healy quadrangles, Alaska.. Alaska Division of Geological & Geophysical Surveys Sample Unique sample identifier Alaska Division of Geological & Geophysical Surveys Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'JEA' = Jen Athey; 'JOE' = Joe Andrew; 'LF' = Larry Freeman; 'MBW' = Melanie Werdon; 'RN' = Rainer Newberry; 'Z' = David Szumigala. SiO2 SiO2 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % Al2O3 Al2O3 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % Fe2O3 Fe2O3 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. All iron is expressed as Fe2O3. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % CaO CaO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % <0.01 Below detection limit of 0.01 % Alaska Division of Geological & Geophysical Surveys and ALS Chemex. MgO MgO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % Na2O Na2O values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % K2O K2O values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % Cr2O3 Cr2O3 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % <0.01 Below detection limit of 0.01 % Alaska Division of Geological & Geophysical Surveys and ALS Chemex. TiO2 TiO2 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % MnO MnO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % <0.01 Below detection limit of 0.01 % Alaska Division of Geological & Geophysical Surveys and ALS Chemex. P2O5 P2O5 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % SrO SrO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % <0.01 Below detection limit of 0.01 % Alaska Division of Geological & Geophysical Surveys and ALS Chemex. BaO BaO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % <0.01 Below detection limit of 0.01 % Alaska Division of Geological & Geophysical Surveys and ALS Chemex. LOI Loss on ignition (LOI) values expressing loss of mass determined by gravimetric measurement after heating to 1000 degrees Celsius and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 % Total Calculated total for oxides in sample. Shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 105 % Rb Rubidium values acquired by analysis with x-ray flourescence spectrometry (XRF) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory 1 10000 ppm Sr Strontium values acquired by analysis with x-ray flourescence spectrometry (XRF) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory 1 10000 ppm Y Yttrium values acquired by analysis with x-ray flourescence spectrometry (XRF) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory 1 10000 ppm Zr Zirconium values acquired by analysis with x-ray flourescence spectrometry (XRF) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory 1 10000 ppm Nb Niobium values acquired by analysis with x-ray flourescence spectrometry (XRF) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks Advanced Instrumentation Laboratory 1 10000 ppm Trace-element rock geochemistry Table5.csv Detection limits and geochemical methods for trace-element geochemical analyses of rock samples. Alaska Division of Geological & Geophysical Surveys and ALS Chemex Element Chemical symbol of element analyzed Alaska Division of Geological & Geophysical Surveys and ALS Chemex Chemical symbol Periodic Table of the Elements, National Institute of Standards and Technology NIST SP 966 (September 2003) Units Chemical composition units (by weight) Alaska Division of Geological & Geophysical Surveys and ALS Chemex ppm Parts per million Alaska Division of Geological & Geophysical Surveys % percent Alaska Division of Geological & Geophysical Surveys Lower Detection Limit The lowest concentration at which the element can be detected Alaska Division of Geological & Geophysical Surveys and ALS Chemex Detection limit is a a number that is either the maximum or the minimumthat a geochemical determination can be reliably made. Upper Detection Limit Value above which concentrations can not be accurately determined. Alaska Division of Geological & Geophysical Surveys and ALS Chemex Detection limit is a a number that is either the maximum or the minimumthat a geochemical determination can be reliably made. Analytical Method Instrumental method used by laboratory to determine concentration values. Alaska Division of Geological &Geophysical Surveys and ALS Chemex FA-ICP-AES Inductive coupled plasma-atomic emission spectroscopy following a 30g fire assay fusion. Alaska Division of Geological & Geophysical Surveys and ALS Chemex ICP-AES Inductive coupled plasma-atomic emission spectroscopy Alaska Division of Geological & Geophysical Surveys and ALS Chemex Digestion Method used to get the sample into a form that is used by the analytical method to determine geochemical concentrations. Alaska Division of Geological & Geophysical Surveys and ALS Chemex 4 Acid four-acid, near-total digestion Alaska Division of Geological & Geophysical Surveys and Acme Labs and ALS Chemex. Whole-rock major-oxide, minor-oxide, trace-element Table6.csv Detection limits and geochemical methods for for major- and minor-oxide and trace metal analyses of whole-rock samples. Alaska Division of Geological & Geophysical Surveys and ALS Chemex Element Chemical formula of element or oxide component analyzed Alaska Division of Geological & Geophysical Surveys and ALS Chemex Major and minor oxide chemical formulas Alaska Division of Geological & Geophysical Surveys and ALS Chemex Fe2O3 Total iron content calculated as ferric iron Alaska Division of Geological & Geophysical Surveys and ALS Chemex LOI Loss on ignition, difference after heating to 1000 degrees Celsius determined by gravimetric measurement Alaska Division of Geological & Geophysical Surveys and ALS Chemex Total Sum of the concentrations of all the oxides and LOI Alaska Division of Geological & Geophysical Surveys and ALS Chemex Units Chemical composition units (by weight) Alaska Division of Geological & Geophysical Surveys and ALS Chemex % percent Alaska Division of Geological & Geophysical Surveys Lower Detection Limit The lowest concentration at which the element can be detected Alaska Division of Geological & Geophysical Surveys and ALS Chemex Detection limit is a a number that is either the maximum or the minimumthat a geochemical determination can be reliably made. Upper Detection Limit Value above which concentrations can not be accurately determined. Alaska Division of Geological & Geophysical Surveys and ALS Chemex Detection limit is a a number that is either the maximum or the minimumthat a geochemical determination can be reliably made. Analytical Method Instrumental method used by laboratory to determine concentration values. Alaska Division of Geological &Geophysical Surveys and ALS Chemex LBF-XRF lithium borate fusion, X-ray fluorescence spectrometry Alaska Division of Geological & Geophysical Surveys and ALS Chemex gravimetric A value determined by gravimetric measurement Alaska Division of Geological & Geophysical Surveys and ALS Chemex calculation A value determined by computation Alaska Division of Geological & Geophysical Surveys and ALS Chemex Non-carbonate carbon geochemistry Table7.csv Location, description, and analyses of rocks collected for non-carbonate carbon analyses in the eastern Bonnifield mining district, Fairbanks and Healy Quadrangles, Alaska. Alaska Division of Geological & Geophysical Surveys Sample Number Unique sample identifier Alaska Division of Geological & Geophysical Surveys Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'JEA' = Jen Athey; 'JOE' = Joe Andrew; 'LF' = Larry Freeman; 'MBW' = Melanie Werdon; 'RN' = Rainer Newberry; 'Z' = David Szumigala. Latitude Latitude Alaska Division of Geological & Geophysical Surveys Latitude in decimal degrees, NAD 27 Longitude Longitude Alaska Division of Geological & Geophysical Surveys Longitude in decimal degrees, NAD 27 UTM E Easting Alaska Division of Geological & Geophysical Surveys Easting for UTM Zone 6, NAD 27 UTM N Northing Alaska Division of Geological & Geophysical Surveys Northing for UTM Zone 6, NAD 27 Zone UTM Zone Alaska Division of Geological & Geophysical Surveys 06W is UTM zone for all samples in this data set Description Brief rock description Alaska Division of Geological & Geophysical Surveys Brief rock description Non-carbonate Carbon (%) Non-carbonate Carbon values acquired by analysis using induction furnace pyrolysis following dilute acid digestionand shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 50 % RDF 2009-1 has seven entities containing attributes that need to be defined. The entities are grouped in three thematic layers; two layers (trace element geochemistry layer and Whole-rock geochemistry layer) each contain a sample location and description table (Tables 1 and 3), a geochemical analysis data table (Tables 2 and 4), and tables describing analytical methods and detection limits (Tables 5 and 6); the data third layer (Non-carbonate carbon content) is in a single table that contains all the nessecary information. The values in the "Sample Number" columns in tables 1 and 3 correspond with the "Sample Number" columns in tables 2 and 4, respectively. Each row in tables 2 and 4 give detection limits and methods for each of the columns in tables 2 and 4, resectively. The third This report State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys mailing and physical

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