Bedrock geologic map of the Kigluaik Mountains, Seward Peninsula, Alaska

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Frequently anticipated questions:


What does this data set describe?

Title:
Bedrock geologic map of the Kigluaik Mountains, Seward Peninsula, Alaska
Abstract:
Bedrock geologic map of the Kigluaik Mountains, Seward Peninsula, Alaska, Public Data File 97-31, presents a 1:63,360-scale bedrock geologic map of parts of the Teller A-1, A-2, A-3, Nome D-1, D-2, D-3, Solomon D-6, and Bendeleben A-6 quadrangles. The Kigluaik Mountains comprise a region of rugged terrain located approximately 50 km north of Nome on the Seward Peninsula in northwestern Alaska and are defined as the topographic high between the Imuruk Basin on the north, the Sinuk River area to the south, the Nome-Teller highway to the west, and the Nome-Council highway to the east. This compilation at 1:63,360 scale is the first detailed map of the entire Kigluaik Mountains and has been compiled from geologic mapping at 1:24,000 scale as part of a project initiated by E. L. Miller at Stanford University in 1987. Our mapping covers more than 3/4 of the area of the Kigluaik Mountains, the rest of which was compiled from the aforementioned thesis maps and other sources. This mapping took place during field seasons of a duration of approximately 4-8 weeks a year during the years of 1989, 1990, 1991, and 1992. Field parties ranged in size from 1-5 persons, with minimal helicopter support. The aim of the project was to elucidate the Cretaceous tectonic history of the region, and as a result, Quaternary geology and minor offset faults were deemphasized. The Quaternary sediments of the region were mapped by Kaufman (1989). The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/1782.
Supplemental_Information:
This geodatabase is organized according to the AK GeMS mapping schema Hendricks, M.D., Ekberg, P.G., Athey, J.E., Wyatt, W.C., Willingham, A.L., and Naibert, T.J., 2021, AK GeMS data dictionary: A description of the Alaska geologic mapping schema: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 170, 10 p. https://doi.org/10.14509/30669. The distribution package includes ESRI fonts and style files, along with usage instructions. Further documentation of the symbology is provided by Ekberg, P.G., Hendricks, M.D., and Athey, J.E., 2021, AK GeMS symbology: A description of the AK GeMS style file: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 169, 7 p. https://doi.org/10.14509/30584
  1. How might this data set be cited?
    Amato, J.M., and Miller, E.L., 1997, Bedrock geologic map of the Kigluaik Mountains, Seward Peninsula, Alaska: Public Data File PDF 97-31, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 6 p., 8 sheets, scale 1:42,240
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -166.283693
    East_Bounding_Coordinate: -164.616841
    North_Bounding_Coordinate: 65.253276
    South_Bounding_Coordinate: 64.747651
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 1989
    Ending_Date: 2022
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: geodatabase
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a vector 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: 3
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -165
      Latitude_of_Projection_Origin: 0
      False_Easting: 500000.000000
      False_Northing: 0
      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest .00000001
      Ordinates (y-coordinates) are specified to the nearest .00000001
      Planar coordinates are specified in Meters
      The horizontal datum used is NAD27.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.9786982.
  7. How does the data set describe geographic features?
    kigluaik_mountains_ak_gems_db_pkg
    Geodatabase, layer files, style files, and fonts (Source: DGGS)
    kigluaik_mountains_gems_db_pkg
    Geodatabase, layer files, style files, and fonts (Source: DGGS)
    kigluaik_mountains_gems_shapefile_pkg
    Shapefiles and open data files (Source: DGGS)

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?
    This work constitutes part of Amato's Ph.D. dissertation at Stanford University. Field work was supported by NSF grant EAR-90-18922 to E. L. Miller, NSF grant EAR-01-17419 to J. E. Wright, ARC0 Alaska, and a G.S.A. John T. Dillon award (1991), G.S.A. Penrose award, and Stanford McGee Fund grant to J. M. Amato. Field work as part of the Stanford mapping project was facilitated by project leaders E.L. Miller (1989), P.B. Gans (1990-1991), and J.M. Amato (1992). This compilation includes mapping published as Stanford theses by A.T. Calvert (M.S. 1992), K.A. Hannula (Ph.D. 1993), and J.M. Amato (Ph.D. 1995). Additional field work was carried out by T.A. Little (1989, 1991). J. Lee (1991), J. Toro (1992), and J.E. Wright (1992). Field assistants were L. Symchych (1991) and J.Y. Amory (1992). Logistical support was provided by L. Young of Cominco, T. Bundtzen of the Alaska Division of Geological and Geophysical Surveys, and the Jim and Debbie Miller family of Nome, Alaska. This map was converted to GeMS or digitized into GeMS by Lars Arneson of Kinney Engineering, LCC., quality controlled, and then finalized by DGGS staff (Chris Wyatt and Mike Hendricks). Geologic map conversion to the GeMS standard was funded by the USGS National Cooperative Geologic Mapping Program under StateMap award number G21AC10706, 2021, and the State of Alaska General Fund. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government.
  3. To whom should users address questions about the data?
    Alaska Division of Geological & Geophysical Surveys
    Metadata Manager
    3354 College Road
    Fairbanks, AK
    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 website (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.

Why was the data set created?

The bedrock geologic interpretations and investigation of the Kigluaik Mountains area was implemented as part of an ongoing DGGS program to provide geologic mapping and supporting geochemical, petrologic, and geochronologic data to foster a better understanding of Alaska's geology and mineral potential.

How was the data set created?

  1. From what previous works were the data drawn?
    Ekberg, P.G. and others, 2021 (source 1 of 3)
    Ekberg, P.G., Hendricks, M.D., and Athey, J.E., 2021, AK GeMS symbology: A description of the AK GeMS style file: Miscellaneous Publication MP 169, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 7 p
    Type_of_Source_Media: paper
    Source_Contribution: GIS analysis and digital cartography
    Hendricks, M.D. and others, 2021 (source 2 of 3)
    Hendricks, M.D., Ekberg, P.G., Athey, J.E., Wyatt, W.C., Willingham, A.L., and Naibert, T.J., 2021, AK GeMS data dictionary: A description of the Alaska geologic mapping schema: Miscellaneous Publication MP 170, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska, United States.

    Online Links:

    Other_Citation_Details: 10 p
    Type_of_Source_Media: paper
    Source_Contribution: GIS analysis and digital cartography
    U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020 (source 3 of 3)
    U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema) - A standard format for the digital publication of geologic maps: Techniques and Methods TM 11-B10, U.S. Geological Survey, United States.

    Online Links:

    Other_Citation_Details: 1 p
    Type_of_Source_Media: paper
    Source_Contribution: GIS analysis and digital cartography
  2. How were the data generated, processed, and modified?
    Date: 1997 (process 1 of 2)
    Geologic mapping - Geologic mapping took place during field seasons of a duration of approximately 4-8 weeks a year during the years of 1989, 1990,1991, and 1992. Field parties ranged in size from 1-5 persons, with minimal helicopter support. The aim of the project was to elucidate the Cretaceous tectonic history of the region. The conceptual framework for the geology incorporates key ideas from preexisting literature with new data and interpretations developed from field mapping and analytical findings. The accompanying map or report provides a comprehensive bibliographic reference list of prior work used to identify and delineate rock units and structural elements.
    Date: 2022 (process 2 of 2)
    GIS analysis and digital cartography - This data distribution package's geologic and geographic features were organized and attributed according to the AK GeMS geologic mapping schema. The data were programmatically transformed to provide download options in three formats: (1) an AK GeMS data package that includes the complete AK GeMS database and associated files, (2) a GeMS data package that is a conversion of the AK GeMS database into the base GeMS standard published by the USGS, and (3) a shapefile data package that includes two simple shapefile representations of the data. Data sources used in this process:
    • Ekberg, P.G. and others, 2021
    • Hendricks, M.D. and others, 2021
    • U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020
  3. What similar or related data should the user be aware of?

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

  1. How well have the observations been checked?
    Attribute fields within each feature class are populated using the map symbology and corresponding applicable values from the GeMS and AK GeMS specifications. When known, certainty in attribute interpretation is indicated in the relevant fields. Attribute accuracy varies throughout the map and is scale-dependent.
  2. How accurate are the geographic locations?
    Certainty in feature boundaries or location varies throughout the map. Data fields within each feature class and the accompanying orientation and location confidence lookup tables record the authors' degree of confidence in the location of applicable features.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    This publication is a DGGS Public Data File (PDF). The objective of this series, published from 1983 through 1999, was to make project and field data available to the public as soon as possible. PDFs were not reviewed or edited.
  5. How consistent are the relationships among the observations, including topology?
    All polygon features were topologically validated according to the AK GeMS geologic mapping schema specifications.

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 is 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. The 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. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data 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 or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
  1. Who distributes the data set? (Distributor 1 of 1)
    Alaska Division of Geological & Geophysical Surveys
    Metadata Manager
    3354 College Road
    Fairbanks, AK
    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 website (https://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? PDF 97-31
  3. What legal disclaimers am I supposed to read?
    The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data 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 or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 01-Dec-2022
Metadata author:
Alaska Division of Geological & Geophysical Surveys
Attn: Simone Montayne
Metadata Manager
3354 College Road
Fairbanks, AK
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
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.9.50 on Thu Dec 01 17:53:00 2022