A Guide to the Late Quaternary History of Northern and Western Kenai Peninsula, Alaska

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Frequently-anticipated questions:


What does this data set describe?

Title:
A Guide to the Late Quaternary History of Northern and Western Kenai Peninsula, Alaska
Abstract:
Between 27 and 11 kyr ago, during the last major (Naptowne) glaciation, the northwestern and western Kenai Peninsula and the Cook Inlet trough were covered by ice except for local nunataks and small refugia, like the Caribou Hills. Landforms related to four glacial stades are recognized and paleogeographic maps document ice limits, drainage systems, glacial-impounded lakes, and glaciomarine terraces. Numerous multidisciplinary studies of glacial, vegetation, and insect histories document Holocene climatic changes.
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." Layers include:
icelimits_digitize    ice limits of four glacial periods on the Kenai peninsula
  1. How should this data set be cited?

    Reger, R.D., Sturmann, A.G., Berg, E.E., and Burns, P.A.C., 2008, A Guide to the Late Quaternary History of Northern and Western Kenai Peninsula, Alaska: Guidebook GB 8, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, Alaska - USA.

    Online Links:

    Other_Citation_Details: 112 pp., 6 sheets, scale 1:63,360

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -151.865033
    East_Bounding_Coordinate: -149.974371
    North_Bounding_Coordinate: 60.827762
    South_Bounding_Coordinate: 59.601458

  3. What does it look like?

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

    Beginning_Date: 1975
    Ending_Date: 2007
    Currentness_Reference: ground condition

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

    Geospatial_Data_Presentation_Form: vector digital data

  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: 5
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -153.000000
      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 0.000001
      Ordinates (y-coordinates) are specified to the nearest 0.000001
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.978698.

  7. How does the data set describe geographic features?

    icelimits_digitize.shp
    paleogeographic linear features depicting ice limits of four glacial periods on the Kenai peninsula (Source: Alaska Division of Geological & Geophysical Surveys)

    Stade
    A periode of glacial expansion within a major glaciation (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    MoosehornName of glacial event
    ElmendorfName of glacial evant
    SkilakName of glacial event
    KilleyName of glacial event

    Type
    A line type indicating a moraine limit or a stream drainage (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    Moraine limitLine depicting the outlines of extent of glacial moraine deposits
    Stream drainageArrow indicating direction of glacial outwash


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?

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


Why was the data set created?

To describe a wide variety of landforms and related processes, including glaciated valleys, massive rock failures, moraines, lake deposits and shorelines features, diversion channels, outwash fans and terraces, braid deltas and braidplains, glaciomarine deposits and coastal terraces, volcanoes, estuarine deposits and effects of land-level change, coastal-bluff stratigraphy, modern beach features, and tsunami hazards.


How was the data set created?

  1. From what previous works were the data drawn?

    Karlstrom, 1964 (source 1 of 1)
    Karlstrom, T.N.V., 1964, Quaternary geology of the Kenai Lowland and glacial history of the Cook Inlet region, Alaska: U.S. Geological Survey Professional Paper P 443, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.

    Other_Citation_Details: 69 p., 7 sheets, scale 1:63,360
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 63360
    Source_Contribution:
    This map and report were used as a base for a portion of the map produced by this publication.

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

    Date: Unknown (process 1 of 1)
    Field investigations were conducted from 1976 through 2006. The results from Karlstrom, 1964 was utilized as a starting point for a subsection of the current map.

    Data sources used in this process:

    • Karlstrom, 1964

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

    Karlstrom, T.N.V., 1964, Quaternary geology of the Kenai Lowland and glacial history of the Cook Inlet region, Alaska: U.S. Geological Survey Professional Paper P 443, United States Government Printing Office, Washington D.C., Maryland.

    Online Links:

    Other_Citation_Details: 69 p., 7 sheets, scale 1:63,360
    Miller, R.D., and Dobrovolny, Ernest, 1959, Surficial geology of Anchorage and vicinity, Alaska: U.S. Geological Survey Bulletin B 1093, United States Government Printing Office, Washington D.C., Maryland.

    Online Links:

    Other_Citation_Details: 128 p., 5 sheets, scale 1:63,360
    Reger, R.D., and Pinney, D.S., 1996, Late Wisconsin glaciation of the Cook Inlet region with emphasis on Kenai Lowland and implications for early peopling: Cook Inlet Historical Society, Anchorage, Alaska.

    Other_Citation_Details: p.15-35
    This is part of the following larger work.

    Davis, N.Y. (ed.), and Davis, W.E. (ed.), 1996, Adventures through time: Readings in the anthropology of Cook Inlet, Alaska: Cook Inlet Historical Society, Anchorage, Alaska.

    Reger, R.D., and Pinney, D.S., 1996, Last major glaciation of Kenai Lowland: Cook Inlet Historical Society, Anchorage, Alaska.

    Other_Citation_Details: p. 54-67
    This is part of the following larger work.

    Karl, S.M. (ed.), Vaughn, N.R. (ed.), and Ryherd, T.J. (ed.), 1997, 1997 guide to the geology of the Kenai Peninsula, Alaska: Alaska Geological Society, Anchorage, Alaska.

    Reger, R.D., and Updike, R.G., 1983, Upper Cook Inlet and the Matanuska Valley: Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska.

    Online Links:

    Other_Citation_Details: p. 185-263, 1 sheet, scale 1:250,000
    This is part of the following larger work.

    Pw, T.L. (ed.), and Reger, R.D. (ed.), 1983, Guidebook to permafrost and Quaternary geology along the Richardson and Glenn Highways between Fairbanks and Anchorage, Alaska: Guidebook GB 1, Alaska Division of Geological & Geophysical Surveys, Fairbanks, Alaska.

    Schmoll, H.R., and Yehle, L.A., 1986, Pleistocene glaciation of the upper Cook Inlet basin: Cook Inlet Historical Society, Anchorage, Alaska.

    Other_Citation_Details: p. 193-218
    This is part of the following larger work.

    Hamilton, T.D. (ed.), Reed, K.M. (ed.), and Thorson, R.M. (ed.), 1986, Glaciation in Alaska: The geologic record: Alaska Geological Society, Anchorage, Alaska.

    Schmoll, H.R., Yehle, L.A., Gardner, C.A., and Odum, J.K., 1984, Guide to surficial geology and glacial stratigraphy in the upper Cook Inlet basin: Alaska Geological Society, Anchorage, Alaska.

    Other_Citation_Details: 89 pp.
    Schmoll, H.R., Yehle, L.A., and Updike, R.G., 1999, Summary of Quaternary geology of the Municipality of Anchorage, Alaska: Quaternary International v. 60, Elsevier, Inc., Unknown.

    Other_Citation_Details: p. 3-36


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

  1. How well have the observations been checked?

    The paleogeographic maps were prepared by interpretation of aerial photographs and maps verified by field investigations. Aerial photographs interpreted include 7-6-75 1:15,840-scale black-and-white photos, 7-7-76 1:15,840-scale color photos, August 1984 1:63,360-scale false-color infrared photos, and 6-14-98 1:12,000-scale color photos. Maps interpreted are 1:25,000-scale provisional-edition metric maps of the Kenai Quadrangle published in 1986 and 1987 and of the Seldovia Quadrangle published in 1987. Field investigations were conducted from 1976 through 2006. Data for paleogeographic arc shapefile were 'on screen' digitized from a scanned paper map compilations. Paleogeographic information was compiled on paper topographic maps with abundant control points at 1:25,000 scale and registered in ArcGis 9.2, then reduced to a layer onto a 1:63,360-scale USGS topographic base.

  2. How accurate are the geographic locations?

  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 paleogeographic linear features depicting ice limits of four glacial periods on the Kenai peninsula.

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

    Data are arc (line) 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 data set 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 data sets utilizing these data sets 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 data sets, 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?

    Guidebook 8

  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: 07-Jan-2010
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 14:29:34 2008