Interpretive geologic bedrock map of the Tanana B-1 Quadrangle, Central Alaska

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Frequently-anticipated questions:


What does this data set describe?

Title:
Interpretive geologic bedrock map of the Tanana B-1 Quadrangle, Central Alaska
Abstract:
This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the north of the Tanana A-1 and A-2 Quadrangles. This report includes detailed bedrock, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.
Supplemental_Information:
The layers listed below are present as ArcGIS shape files. Attribute information for the following layers (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." Basic unit information is also included in the geologic unit code set file "RI1997-15_codeset.pdf". Layers include:
tanb1_fold4_arc     geologic structural fold lines, anticlines, or synclines
tanb1_fold4_point     point symbols for structural fold lines, anticlines, or synclines
tanb1_form4_arc     geologic structural form lines
tanb1_geo3_arc     geologic bedrock units (arc)
tanb1_geo3_polygon     geologic bedrock units (polygons)
tanb1_lines3_arc     lines depicting cross-sections
tanb1_str4_arc     geologic structure lines
tanb1att2_point     strike, dip, and plunge of bedding planes, foliation, and various lineaments
  1. How should this data set be cited?

    Reifenstuhl, R.R., Dover, J.H., Newberry, R.J., Clautice, K.H., Liss, S.A., Blodgett, R.B., Bundtzen, T.K., and Weber, F.R., 1997, Interpretive geologic bedrock map of the Tanana B-1 Quadrangle, Central Alaska: Report of Investigation RI 97-15B, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.

    Online Links:

    Other_Citation_Details: 15 p., 1 sheet, scale 1:63,360

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -150.52404955
    East_Bounding_Coordinate: -149.97139557
    North_Bounding_Coordinate: 65.50914386
    South_Bounding_Coordinate: 65.24096052

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 1996
    Ending_Date: 1997
    Currentness_Reference: publication date

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: map and vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

    2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 5
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -153.000000
      Latitude_of_Projection_Origin: 0.000000
      False_Easting: 500000.000000
      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000064
      Ordinates (y-coordinates) are specified to the nearest 0.000064
      Planar coordinates are specified in meters

      The horizontal datum used is D_Clarke_1866.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6,378,206.4.
      The flattening of the ellipsoid used is 1/294.978698.

  7. How does the data set describe geographic features?

    tanb1_geo3_arc.shp
    Object type is vector, there are 615 rows associated with this entity, and the entity values refer to interpretive geologic bedrock unit contacts (Source: Alaska Division of Geological & Geophysical Surveys)

    SYMBOL
    Line symbols for contacts, defined as boundaries between geologic formations or other rock units (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    0Hidden line, defines the polygon boundary, but is not displayed on the map for aesthetic purposes
    1Neatline for small scale maps, in this case used for contact boundaries
    6Contact, approximately located

    tanb1_geo3_polygon.shp
    Object type is vector, there are 254 rows associated with this entity, and the entity values refer to interpretive geologic bedrock polygons (Source: Alaska Division of Geological & Geophysical Surveys)

    UNIT
    Interpretive geologic bedrock unit labels (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    FZONEVictoria Creek Fault- Major dextral strike-slip fault zone connecting Tintina Fault Zone. The Victoria Creek fault zone is topographically subdued but cuts the Amy Creek dolomite unit and the Livengood Chert unit. Also called the Kaltag fault or the Tozitna fault.
    RIVRiver- Yukon River
    Ts?Unit Ts, questionable

    Formal codeset
    Codeset Name:RI1997-15_codeset.pdf
    Codeset Source:Alaska Division of Geological & Geophysical Surveys <http://www.dggs.alaska.gov/metadata/RI1997-15_codeset.pdf>

    ANNO
    Interpretive geologic bedrock unit label annotations (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    NMNot mapped, region is irrelevant and not meaningful for the particular data layer

    Formal codeset
    Codeset Name:RI1997-15_codeset.pdf
    Codeset Source:Alaska Division of Geological & Geophysical Surveys <http://www.dggs.alaska.gov/metadata/RI1997-15_codeset.pdf>

    SPECIAL
    Letters assigned to various geologic polygons for formatting purposes. (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    TDenotes a geologic unit polygon of Triassic age. This attribute was added to help remind the authors/cartographers that a special font was needed for the "Tr" (Triassic symbol) during final layout formatting. Some polygons may not have been assigned a value of "T".
    zDenotes a geologic unit polygon not of Triassic age. This attribute was added to help remind the authors/cartographers that a special font was needed for the "Tr" (Triassic symbol) during final layout formatting (see above). Some polygons may not have been assigned a value of "z".

    HFS
    Hornfels- very dark gray to black, very fine to fine grained, hard, dense rocks with common disoriented crystals or rosettes of muscovite, biotite, and locally andalusite. Typically formed by contact metamorphism. (Source: Alaska Division of Geological & Geophysical Surveys)

    "Y"- The geologic polygon shown on the Interpretive Geologic Bedrock Map of the Tanana B-1 Quadrangle, Central Alaska (Publication RI-97-15B-SH1) is classified as a region having a hornfelsic texture. "N"- The geologic polygon shown on the Interpretive Geologic Bedrock Map of the Tanana B-1 Quadrangle, Central Alaska (Publication RI-97-15B-SH1) is not classified as a region having a hornfelsic texture. Some polygons may not have been assigned a value of "Y" or "N".

    tanb1.str4_arc.shp
    Object type is vector, there are 496 rows associated with this entity, and the entity values refer to interpretive geologic structure lines (Source: Alaska Division of Geological & Geophysical Surveys)

    SYMBOL
    Line symbols for types of faults (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    0Hidden line, defines the polygon boundary, but is not displayed on the map for aesthetic purposes
    5Contact
    6Contact, approximately located
    11Fault. *** Note: arcs having the software-defined attribute/column FID whose values are "9, 24, 25, 32, 74, 139, 160, 161, 166, 167, 172, 173, 183, 184, 241, 242, 298, 368, 398, 399, 464, 465, and 468-473" represent the Victoria Creek Fault. The annotation "Victoria Creek Fault", as seen on the Interpretive Geologic Bedrock Map of the Tanana B-1 Quadrangle, Central Alaska (Publication RI-97-15B-SH1), is not preserved in the structure data. ***
    13Fault, inferred
    17Thrust fault, sawteeth on upper plate, user will need to see the Interpretive Geologic Bedrock Map of the Tanana B-1 Quadrangle, Central Alaska (Publication RI 97-15B-SH1) for interpretation of relative plate motion
    19Thrust fault, inferred, user will need to see the Interpretive Geologic Bedrock Map of the Tanana B-1 Quadrangle, Central Alaska (Publication RI 97-15B-SH1) for interpretation of relative plate motion

    CODE
    Numerical assignment of cartographic lines (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    0*** Note: A code value of "0" does not actually exist for this particular feature. The correct code value for the software-defined attribute/column FID whose values are 429 and 443 should be "6" (see below). ***
    6Fault.
    7Fault, inferred.
    8Thrust fault, sawteeth on upper plate, user will need to see the Interpretive Geologic Bedrock Map of the Tanana B-1 Quadrangle, Central Alaska (Publication RI 97-15B-SH1) for interpretation of relative plate motion.
    9Thrust fault, inferred, user will need to see the Interpretive Geologic Bedrock Map of the Tanana B-1 Quadrangle, Central Alaska (Publication RI 97-15B-SH1) for interpretation of relative plate motion.

    tanb1_form4_arc.shp
    Object type is vector, there are 91 rows associated with this entity, and the entity values refer to interpretive geologic structural form lines (Source: Alaska Division of Geological & Geophysical Surveys)

    CODE
    Authors' arbitrary number assignment for types of map lines. See tanana_b1_line_lut.txt for the line code set, which displays the relationship between "SYMBOL" and "CODE". (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    19Bedding trace- Approximate trace of bedding on topographic surface, showing stratigraphic or structural "form"

    SYMBOL
    Line symbols for types of faults (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    7*** Note: The "SYMBOL" value of "7" listed is incorrect. The correct value should be "9", which is defined as a concealed contact, in this case depicting a bedding trace. ***

    tanb1_fold4_arc.shp
    Object type is vector, there are 100 rows associated with this entity, and the entity values refer to interpretive geologic structural fold lines, anticlines, or synclines (Source: Alaska Division of Geological & Geophysical Surveys)

    SYMBOL
    Line symbols for types of folds, anticlines, or synclines (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    19*** Note: The "SYMBOL" value of "19" listed is incorrect. The correct value should be "36", which is defined as an inferred anticline or syncline. ***
    34Fold axis, anticline or syncline. This line, in combination with the proper point symbol, indicates the location of an anticline or syncline (see Entity_Type_Label "tanb1.fold4.pat" below).
    35Anticline or syncline, approximately located. This line, in combination with the proper point symbol, indicates the location of an anticline or syncline (see Entity_Type_Label "tanb1.fold4.pat" below).
    36Anticline or syncline, inferred. This line, in combination with the proper point symbol, indicates the location of an anticline or syncline (see Entity_Type_Label "tanb1.fold4.pat" below).
    37Anticline or syncline, probable. This line, in combination with the proper point symbol, indicates the location of an anticline or syncline (see Entity_Type_Label "tanb1.fold4.pat" below).
    38Anticline or syncline, concealed. This line, in combination with the proper point symbol, indicates the location of an anticline or syncline (see Entity_Type_Label "tanb1.fold4.pat" below).

    CODE
    Numerical assignment of cartographic lines (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    0Hidden line
    11Anticline or syncline, approximately located.
    12Anticline or syncline, inferred.

    tanb1_fold4_point.shp
    Object type is point, there are 40 rows associated with this entity, and the entity values refer to types of anticlines or synclines (Source: Alaska Division of Geological & Geophysical Surveys)

    SYMBOL
    Point symbols for types of folds, anticlines, or synclines (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    22Anticline
    23Syncline
    26Overturned syncline, showing direction of dip of limbs
    27Overturned anticline, showing direction of dip of limbs

    tanb1_lines3_arc.shp
    Object type is point, there are 15 rows associated with this entity, and the entity values refer to lines depicting cross-sections (Source: Alaska Division of Geological & Geophysical Surveys)

    SYMBOL
    Lines depicting cross-sections (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    5Contact, in this case a generic line depicting a cross-section location

    tanb1att2_point.shp
    Object type is point, there are 489 rows associated with this entity, and the entity values refer to the strike, dip, and plunge of bedding planes, foliation, and various lineaments (Source: Alaska Division of Geological & Geophysical Surveys)

    LONG
    Longitude, UTM Zone 5, Clarke 1866 (see Spatial_Reference_Information) (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:-150.4976
    Maximum:-150.0005
    Units:decimal degrees

    LAT
    Latitude, UTM Zone 5, Clarke 1866 (see Spatial_Reference_Information) (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:65.2506
    Maximum:65.491
    Units:decimal degrees

    STATION
    Generic example of unique sample identifier or location of a geologic measurement: YrAAA999X: Yr=2 digit year of sample collection, AAA=geologist's initials (one to three characters), 999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials are: BT - B. Taber, JD - J. Dover, KC - K. Clautice, RB - R. Blodgett, RN - R. Newberry, RR - R. Reifenstuhl, SL - S. Liss. (Source: Alaska Division of Geological & Geophysical Surveys)

    Unique sample number designated by the author(s).

    SYMBOL
    Point symbols for types of bedding and foliation orientation data (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    1Strike and dip direction of beds
    3Strike and dip direction of beds, top of beds known from sedimentary features
    4Strike and dip direction of overturned beds
    5Strike of vertical beds, stratigraphic tops to north
    8Horizontal beds
    9Strike and dip direction of foliation
    10Strike of vertical foliation (relationship of foliation or schistocity to bedding not shown in outcrop)
    11Horizontal foliation
    12Strike and dip direction of cleavage
    13Strike of vertical cleavage
    19Strike and dip direction of joints
    20Strike of vertical joints

    BEARING
    Strike of plane using "Right-hand rule", where north is 0 and degrees increase clockwise to 360, always 90 degrees counter-clockwise from dip direction (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:5
    Maximum:360
    Units:degrees

    DIP
    Degrees that a plane is inclined relative to horizontal, horizontal being 0 degrees, vertical being 90 degrees; always 90 degrees clockwise from strike (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:0
    Maximum:90
    Units:degrees

    X-COORD
    Eastings, UTM Zone 5, Clarke 1866 (see Spatial_Reference_Information) (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:616665.6
    Maximum:640062.8
    Units:meters

    Y-COORD
    Northings, UTM Zone 5, Clarke 1866 (see Spatial_Reference_Information) (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:7238733
    Maximum:7265926
    Units:meters

    ANGLE
    Degrees that a plane is inclined relative to horizontal, horizontal being 0 degrees, vertical being 90 degrees; always 90 degrees clockwise from strike. Same as Attribute_Label "DIP" above. (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:0
    Maximum:90
    Units:degrees


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Funding for the geologic mapping and geochronologic dating performed for this project was provided by the U.S. Geological Survey STATEMAP Program under award number 1474-HQ-96-AG (June 1996 through May 1997) and by the Alaska State Legislature.

  3. To whom should users address questions about the data?

    State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
    GIS Data Manager/Cartographer
    3354 College Road
    Fairbanks, AK 99709-3707
    USA

    (907) 451-5029 (voice)
    (907) 451-5050 (FAX)
    dggspubs@alaska.gov

    Contact_Instructions:
    You may view our web site at <http://www.dggs.alaska.gov> for the latest information on available data. Please e-mail your questions and data requests when possible since our web site and e-mail address will remain current even if our phone number and mailing address change.


Why was the data set created?

The Tanana B-1 quadrangle lies between the villages of Rampart, on the Yukon River, and Manley Hot Springs, at the terminus of the Elliot Highway. At the time this project was published the area towns were not part of any municipal or local governmental jurisdiction. The investigation of gold, tin, and other mineral occurrences in conjunction with comprehensive geologic mapping and recently acquired geophysical data will pro­vide a scientific basis for continued mineral exploitation that will economically benefit the region's inhabitants and the State of Alaska. This publication also identifies sources of construction materials and evaluates the type and severity of geologic constraints to future development in the region.


How was the data set created?

  1. From what previous works were the data drawn?

    Eakin, 1912 (source 1 of 6)
    Eakin, H.M., 1912, The Rampart and Hot Springs regions: U.S. Geological Survey Bulletin Bulletin 520, U.S. Geological Survey, Reston, VA, USA.

    Online Links:

    Other_Citation_Details: p. 271-287
    This is part of the following larger work.

    U.S. Geological Survey Staff, 1912, Mineral resources of Alaska, report on progress of investigations of 1911: U.S. Geological Survey Bulletin Bulletin 520, U.S. Geological Survey, Reston, VA, USA.

    Other_Citation_Details: 352 p., 1 sheet, scale 1:2,500,000
    Type_of_Source_Media: paper
    Source_Contribution:
    This map contains geologic unit descriptions and outcrop locations and was used to plan traverses and help define geologic units.

    Eakin, 1913 (source 2 of 6)
    Eakin, H.M., 1913, A geologic reconnaissance of a part of the Rampart Quadrangle, Alaska: U.S. Geological Survey Bulletin Bulletin 535, U.S. Geological Survey, Reston, VA, USA.

    Online Links:

    Other_Citation_Details: 38 p., 2 sheets, scale 1:250,000
    Type_of_Source_Media: paper
    Source_Contribution:
    This map contains geologic unit descriptions and outcrop locations and was used to plan traverses and help define geologic units.

    Hopkins and Taber, 1962 (source 3 of 6)
    Hopkins, D.M., and Taber, B., 1962, Asymmetrical valleys in central Alaska (abs.): Special Paper v. 68, Geological Society of America, Boulder, CO, USA.

    Online Links:

    • NONE

    Other_Citation_Details: p. 116
    Type_of_Source_Media: paper
    Source_Contribution:
    This map contains geologic unit descriptions and outcrop locations and was used to plan traverses and help define geologic units.

    Newberry and Clautice, 1997 (source 4 of 6)
    Newberry, R.J., and Clautice, K.H., 1997, Compositions of placer gold in the Rampart-Eureka-Manley-Tofty area, eastern Tanana and western Livengood quadrangles, central Interior Alaska, determined by electron microprobe analysis: Public Data File PDF 97-49, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (DGGS), Fairbanks, AK, USA.

    Online Links:

    Other_Citation_Details: 49 p.
    Type_of_Source_Media: paper
    Source_Contribution:
    This report contains information that was used to aid in the creation of and sample preparation for the surficial geologic map (RI 97-15C).

    Wagner, 1957 (source 5 of 6)
    Wagner, A.A., 1957, The use of the Unified Soil Classification System by the Bureau of Reclamation: Proceedings v. I, 4th International Conference on Soil Mechanics and Foundation Engineering, London, England.

    Online Links:

    • NONE

    Other_Citation_Details: 125 p.
    Type_of_Source_Media: paper
    Source_Contribution:
    This report contains information that was used to aid in the creation of and sample preparation for the surficial and geologic materials map (RI 97-15C and RI 97-15D).

    Yeend, 1990 (source 6 of 6)
    Yeend, W., 1990, Gold placers, geomorphology, and paleo-drainage of Eureka Creek and Tofty areas, Alaska: U.S. Geological Survey Bulletin Bulletin 1946, U.S. Geological Survey, Reston, VA, USA.

    Online Links:

    Other_Citation_Details: p. 107-109
    Type_of_Source_Media: paper
    Source_Contribution:
    This report contains information that was used to aid in the creation of and sample preparation for the surficial geologic map (RI 97-15C).

  2. How were the data generated, processed, and modified?

    Date: 1996 (process 1 of 3)
    Field work - Field work for bedrock investigations, including ridge traverses and examination of riverbank exposures, was conducted between April 30 and July 4, 1996. Field notes and rock samples were collected at approximately 700 stations throughout the Tanana A-1 and A-2 Quadrangles. Bedrock mappers recorded observations on 1:50,000- and 1:63,360-scale topographic base maps, compiled onto a 1:50,000-mylar map after the field season ended. Field stations were located using hand-held GPS units. Field station notes and GPS location data were manually entered into a spreadsheet.

    Date: 1996 (process 2 of 3)
    Laboratory data - See paper reports RI 97-15A and RI 97-15B for more information.

    Date: 1996 (process 3 of 3)
    Digital Cartography - Bedrock point data of locations of structural observations (strike, dip, cleavage, jointing, etc.) were intersected with the surficial-geologic polygon coverage using the Arc command "intersect" in order to identify locations that were mapped as surficial materials based on aerial photography but were found to have small exposures that were desirable to be mapped as bedrock. These areas were then modified in the surficial-geologic coverages to be areas of bedrock exposure. Final bedrock and surficial geology polygon coverages were merged using the Arc command "union" to generate the polygon coverage used to make the comprehensive geologic map. Other cartographic elements, primarily text and tables, were created in CorelDraw, converted to CGM format, and imported into ArcPlot for final layout.

    Data sources used in this process:

    • Wagner, 1957

  3. What similar or related data should the user be aware of?

    Reifenstuhl, R.R., Dover, J.H., Pinney, D.S., Newberry, R.J., Clautice, K.H., Liss, S.A., Blodgett, R.B., Bundtzen, T.K., and Weber, F.R., 1997, Geologic map of the Tanana B-1 quadrangle, central Alaska: Report of Investigation RI 97-15A, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (DGGS), Fairbanks, AK, USA.

    Online Links:

    Other_Citation_Details: 17 p., 1 sheet, scale 1:63,360
    Pinney, D.S., 1997, Surficial geologic map of the Tanana B-1 Quadrangle, central Alaska: Report of Investigation RI 97-15C, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.

    Online Links:

    Other_Citation_Details: 5 p., 1 sheet, scale 1:63,360
    Pinney, D.S., 1997, Derivative geologic materials map of the Tanana B-1 Quadrangle, central Alaska: Report of Investigation RI 97-15D, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.

    Online Links:

    Other_Citation_Details: 1 sheet, scale 1:63,360
    Pinney, D.S., 1997, Derivative map of potential geologic hazards in the Tanana B-1 Quadrangle, Alaska: Report of Investigation RI 97-15E, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.

    Online Links:

    Other_Citation_Details: 1 sheet, scale 1:63,360


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Locations for geologic and comprehensive point data were entered manually from GPS units into a spreadsheet. Geologic data included in the compilation are the field maps and notes from this project as well as data from other sources as noted in the "Sources Cited" section. Attributes were verified for consistency and completeness during the creation of the metadata.

  2. How accurate are the geographic locations?

    DGGS location data and estimated position errors were manually entered into a spreadsheet. Sample numbers and locations with selected data were spatially registered and analyzed in ArcGIS software. See "Source_Information" section for horizontal positional accuracy of locations not measured by DGGS.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    This dataset includes geospatial information about geologic units and their ages; field sample locations; structural features; and structural measurements.

  5. How consistent are the relationships among the observations, including topology?

    Polygon topology present and clean on appropriate data. Other data are line, point, or annotation data and do not require topologic relationships.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

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.

  1. Who distributes the data set? (Distributor 1 of 1)

    State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
    Natural Resource Technician
    3354 College Road
    Fairbanks, AK 99709-3707
    USA

    907-451-5020 (voice)
    907-451-5050 (FAX)
    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.
  2. What's the catalog number I need to order this data set?

    Report of Investigation 97-15B

  3. What legal disclaimers am I supposed to read?

    The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product.

  4. How can I download or order the data?

  5. What hardware or software do I need in order to use the data set?

    Please check the MapInfo web site (<http://www.mapinfo.com/>) for the latest documentation on importing ESRI shape files.


Who wrote the metadata?

Dates:
Last modified: 06-May-2008
Last Reviewed: 06-May-2008
To be reviewed: 22-Mar-2009
Metadata author:
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Metadata Manager
3354 College Road
Fairbanks, AK 99709-3707
USA

907-451-5039 (voice)
907-451-5050 (FAX)
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.
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


Generated by mp version 2.9.6 on Tue May 06 14:29:38 2008