Engineering-geologic map of the Alaska Highway Corridor, Robertson River to Tetlin Junction, Alaska

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Hubbard, T.D.
Originator: Reger, R.D.
Publication_Date: 2010
Title:
Engineering-geologic map of the Alaska Highway Corridor, Robertson River to Tetlin Junction, Alaska
Geospatial_Data_Presentation_Form: map sheets, table and vector digital data
Series_Information:
Series_Name: Preliminary Interpretive Report
Issue_Identification: PIR 2009-6B
Publication_Information:
Publication_Place: Fairbanks, Alaska - USA
Publisher:
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Other_Citation_Details: 4 sheets, 1:63,360 scale
Online_Linkage: <http://www.dggs.alaska.gov/pubs/id/19742>
Description:
Abstract:
The engineering-geologic map is derived electronically, using Geographic Information System (GIS) software, from the surficial-geologic map of the second segment of the proposed natural gas pipeline corridor through the upper Tanana valley, a 12-mi-wide (19.3-km-wide) area that straddles the Alaska Highway through the upper Tanana River valley from the Robertson River eastward to near Tetlin Junction in the Tanacross Quadrangle (Reger and Hubbard, PIR 2009-6A). Surficial-geologic units were initially identified by interpretation of false-color ~1:65,000-scale infrared aerial photographs taken in July 1978, August 1980, and August 1981 and locally verified by field checking in 2007 and 2008. The map shows the distribution of surficial-geologic and bedrock units grouped genetically with common properties that are typically significant for engineering applications.
Purpose:
This map is a part of ADGGS's Alaska Natural Gas Pipeline Geology and Geohazards project, mapping the geology, geohazards, and resources along the Alaska Highway between Robertson River and Tetlin Junction. The study was done in anticipation of the proposed natural gas pipeline along the Alaska Highway corridor, to further the geologic understanding of the area and, as a basis for evaluating geohazards and resources for proposed infrastructure.
Supplemental_Information:
The layers listed below are present as ArcGIS shape files. To enhance print quality, this publication utilized a vector topography data set. The topography data set is not included with this release. The DGGS metadata standard extends the FGDC standard to also include several elements that are required to facilitate our internal data management. These elements relate individual data items to a common dataset. Attribute information for the following layers (entities) is included in this metadata file under the "Entity_and_Attribute_Information" section. A codeset file titled, PIR2009-6B_codeset.pdf, contains the table explaining the properties of each engineering-geologic unit. There are two layers. Each layer is listed and described in detail under its own heading starting "Entity_Type_Label." Layers include:
eng_geol	polygons of engineering-geologic map units
border		outline shape of the study area
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 2008
Single_Date/Time:
Calendar_Date: 2009
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -144.0000
East_Bounding_Coordinate: -142.5000
North_Bounding_Coordinate: 63.7415
South_Bounding_Coordinate: 63.1661
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys
Theme_Keyword: Alluvial Deposits
Theme_Keyword: Colluvial Deposits
Theme_Keyword: Construction Materials
Theme_Keyword: Crushed Gravel
Theme_Keyword: Crushed Rock
Theme_Keyword: Climate Change
Theme_Keyword: Engineering
Theme_Keyword: Engineering Geology
Theme_Keyword: Floodplain
Theme_Keyword: Floods
Theme_Keyword: Gasline
Theme_Keyword: Geologic Hazards
Theme_Keyword: Geologic Map
Theme_Keyword: Geologic Materials
Theme_Keyword: Icings
Theme_Keyword: Land Subsidence
Theme_Keyword: Landslide
Theme_Keyword: Liquefaction
Theme_Keyword: Materials Site
Theme_Keyword: Permafrost
Theme_Keyword: Proposed Natural Gas Pipeline
Theme_Keyword: Sand & Gravel
Theme_Keyword: Subsidence
Theme_Keyword: Surficial Geology
Theme_Keyword: Transportation Corridor
Theme_Keyword: Unconsolidated Deposits
Place:
Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys
Place_Keyword: Alaska Highway Corridor
Place_Keyword: Alaska Range
Place_Keyword: Alaska, State of
Place_Keyword: Dot Lake
Place_Keyword: Robertson River
Place_Keyword: Tanacross
Place_Keyword: Tanacross Quadrangle
Place_Keyword: Taylor Highway
Place_Keyword: Tok
Place_Keyword: Tok River
Temporal:
Temporal_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys
Temporal_Keyword: Pleistocene
Temporal_Keyword: Quaternary
Temporal_Keyword: Holocene
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.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Contact_Position: GIS Data Manager/Cartographer
Contact_Address:
Address_Type: mailing and physical
Address: 3354 College Road
City: Fairbanks
State_or_Province: AK
Postal_Code: 99709-3707
Contact_Voice_Telephone: (907) 451-5029
Contact_Voice_Telephone: (907) 451-5020
Contact_Facsimile_Telephone: (907) 451-5050
Contact_Electronic_Mail_Address: 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.
Data_Set_Credit:
This research was supported by Alaska State Capital Improvement Projects funding. The authors gratefully acknowledge the helpful review by De Anne Stevens, and able cartographic assistance by Patricia Gallagher, Garrett Speeter, Gail Davidson and Rachel Westbrook. Trent Hubbard was project manager during completion of the project. Field work and preparation for field work was carried out under the direction of Diana Solie. Her leadership was greatly appreciated.
Native_Data_Set_Environment: Microsoft Windows XP SP2, ArcGIS 9.+
Cross_Reference:
Citation_Information:
Originator: Reger, R.D.
Originator: Hubbard, T.D.
Originator: Carver, G.C.
Publication_Date: 2011
Title:
Surficial geology of Alaska Highway corridor, Robertson River to Tetlin Junction, Alaska
Geospatial_Data_Presentation_Form: document, map sheets and vector digital data
Series_Information:
Series_Name: Preliminary Interpretive Report
Issue_Identification: PIR 2009-6A
Publication_Information:
Publication_Place: Fairbanks, AK, USA
Publisher:
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Other_Citation_Details: 4 sheets. 1:63,360 scale
Online_Linkage: <http://www.dggs.alaska.gov/pubs/id/19741>
Cross_Reference:
Citation_Information:
Originator: Reger, R.D.
Originator: Hubbard, T.D.
Publication_Date: 2010
Title:
Reconnaissance interpretation of 1978-1983 permafrost, Alaska Highway Corridor, Robertson River to Tetlin Junction, Alaska
Geospatial_Data_Presentation_Form: document, map sheets and vector digital data
Series_Information:
Series_Name: Preliminary Interpretive Report
Issue_Identification: PIR 2009-6C
Publication_Information:
Publication_Place: Fairbanks, Alaska - USA
Publisher:
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Other_Citation_Details: 4 sheets, 1:63,360 scale
Online_Linkage: <http://www.dggs.alaska.gov/pubs/id/19743>
Cross_Reference:
Citation_Information:
Originator: Reger, R.D.
Originator: Stevens, D.S.P.
Originator: Solie, D.N.
Publication_Date: 2008
Title:
Surficial-geologic map, Alaska Highway Corridor, Delta Junction to Dot Lake, Alaska
Geospatial_Data_Presentation_Form: documents, map sheets and vector digital data
Series_Information:
Series_Name: Preliminary Interpretive Report
Issue_Identification: PIR 2008-3A
Publication_Information:
Publication_Place: Fairbanks, AK, USA
Publisher: Alaska Division of Geological & Geophysical Surveys
Other_Citation_Details: 2 sheets, scale 1:63,360
Online_Linkage: <http://www.dggs.alaska.gov/pubs/id/17961>
Cross_Reference:
Citation_Information:
Originator: Reger, R.D.
Originator: Solie, D.N.
Publication_Date: 2008
Title:
Engineering-geologic map, Alaska Highway Corridor, Delta Junction to Dot Lake, Alaska
Geospatial_Data_Presentation_Form: document map sheets and vector digital data
Series_Information:
Series_Name: Preliminary Interpretive Report
Issue_Identification: PIR 2008-3B
Publication_Information:
Publication_Place: Fairbanks, AK, USA
Publisher: Alaska Division of Geological & Geophysical Surveys
Other_Citation_Details: 2 sheets, scale 1:63,360
Online_Linkage: <http://www.dggs.alaska.gov/pubs/id/17981>
Cross_Reference:
Citation_Information:
Originator: Reger, R.D.
Originator: Solie, D.N.
Publication_Date: 2009
Title:
Reconnaissance interpretation of permafrost, Alaska Highway Corridor, Delta Junction to Dot Lake, Alaska
Geospatial_Data_Presentation_Form: document, map sheets and vector digital data
Series_Information:
Series_Name: Preliminary Interpretive Report
Issue_Identification: PIR 2008-3C
Publication_Information:
Publication_Place: Fairbanks, AK, USA
Publisher:
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Other_Citation_Details: 10 p., 2 sheets, scale 1:63,360
Online_Linkage: <http://www.dggs.alaska.gov/pubs/id/17621>
Cross_Reference:
Citation_Information:
Originator: Carver, G.A.
Originator: Bemis, S.P.
Originator: Solie, D.N.
Originator: Castonguay, S.R.
Originator: Obermiller, K.E.
Publication_Date: 2010
Title:
Active and potentially active faults in or near the AlaskaHighway Corridor, Dot Lake to Tetlin Junction, Alaska
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Preliminary Interpretive Report
Issue_Identification: PIR 2010-1
Publication_Information:
Publication_Place: Fairbanks, Alaska
Publisher: Alaska Division of Geological & Geophysical Surveys
Other_Citation_Details: 42 p.
Online_Linkage: <http://www.dggs.alaska.gov/pubs/id/21121>
Cross_Reference:
Citation_Information:
Originator: Carver, G.A.
Originator: Bemis, S.P.
Originator: Solie, D.N.
Originator: Obermiller, K.E.
Publication_Date: 200812
Title:
Active and potentially active faults in or near the Alaska Highway corridor, Delta Junction to Dot Lake, Alaska
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Preliminary Interpretive Report
Issue_Identification: PIR 2008-3D
Publication_Information:
Publication_Place: Fairbanks, Alaska
Publisher: Alaska Division of Geological & Geophysical Surveys
Other_Citation_Details: 32 p.
Online_Linkage: <http://www.dggs.alaska.gov/pubs/id/17901>
Cross_Reference:
Citation_Information:
Originator: Reger, R.D.
Originator: Hubbard, T.D.
Publication_Date: 200910
Title:
Evidence for late Wisconsinan outburst floods in the Tok-Tanacross Basin. upper Tanana River Valley, east-central Alaska (abs); Geological Society of America Abstracts with Programs
Geospatial_Data_Presentation_Form: abstract
Series_Information:
Series_Name: Geological Society of America Abstracts with Programs
Issue_Identification: vol. 41, No. 7
Publication_Information:
Publication_Place: Boulder, CO
Publisher: Geological Society of America
Other_Citation_Details: p. 637
Cross_Reference:
Citation_Information:
Originator: Hubbard, T.D.,
Originator: Reger, R.D.
Publication_Date: 201010
Title:
Model for Late Wisconsinan Massive Outburst Flooding, Tok River Valley, Northeastern Alaska Range
Geospatial_Data_Presentation_Form: abstract
Series_Information:
Series_Name: Geological Society of America Abstracts with Programs
Issue_Identification: vol. 42, No. 5
Publication_Information:
Publication_Place: Boulder, CO
Publisher: Geological Society of America
Other_Citation_Details: 703 p. Abstract on p. 310

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Surficial geology was initially mapped interpreting ~1:65,000-scale, false-color, infrared aerial photographs taken in July 1978, August 1980, and July 1983 and plotting unit boundaries on acetate overlays. Verification of photo mapping was accomplished during the 2008 field season. Engineering-geologic map units were derived from the surficial-geologic map (PIR 2009-6A). Physical properties of engineering-geologic map units are interpretive, based on extrapolation from verified localities and from previously published reports and data. Potential geologic hazards are inferred from the typical physical properties of map units, including sediment texture and ground-ice content, surface drainage, seasonal frost susceptibility, permafrost and thaw stability, slope stability, suitability for construction, potential engineering considerations and typical topographic settings. An engineering geologic map unit may include one or more surficial units but each surficial unit is only assigned to one engineering map unit. Except for a few test pits, no subsurface investigations or laboratory analyses were performed for this publication. The reader is cautioned that this map is intended only as a general guide, and that unevaluated geologic resources and hazards may be present. Detailed geotechnical investigations should be conducted prior to utilization of any map units for engineering purposes. The interpretations presented in this report have undergone two technical reviews by geologists familiar with the subject of the report and the geology of the map area. We incorporated the reviewer's suggestions into the final draft when deemed appropriate.
Logical_Consistency_Report:
All polygon features were derived from the surficial geologic map topology data set. These data were topologically validated using the ESRI ArcGIS 9+ .Polygon topology is present and clean and validated on the engineering geology data set using the ESRI ArcGIS 9+ software prior to export to shape file format.
Completeness_Report:
This dataset includes shapefiles that contain information about the mapped and interpreted engineering-geologic deposits in the map area distinguishable at a scale of 1:63,360. Subsurface data were not available for use in creating the shapefiles, other than about 10-15 soil pits dug to depths no more than 1.3 m, observations of exposures in gravel pits, highway cuts, and river banks, and drillhole data from geotechnical reports written by the Department of Transportation and Public Facilities for highway construction projects. No analytical tests were conducted for this report. The table describes engineering properties that are generally present in the mapped surficial deposits, but local variations and exceptions are most certainly to be expected. The reader is therefore cautioned that this map is intended only as a general guide, and that unevaluated geologic resources and hazards may be present. Detailed geotechnical investigations should be conducted prior to utilization of any map units for engineering purposes.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The engineering-geologic map units were derived from the surficial-geologic map (PIR 2009-6A). The surficial-geologic map contacts were first hand-drawn, using a magnifying stereoscope, onto acetate overlays registered to 1:50,000-scale (nominal) prints of digital aerial photographs. The horizontal accuracy of the surficial map unit boundary locations varies due to the scale and interpretive nature of the mapping, but is expected to be accurate to at least 15 m. The 400dpi digital air photos were orthorectified using OrthoMapper 3.6 with an RMS error generally constrained to be less than 4 pixels, equating to approximately 20 m on the ground, although some areas with rugged terrain have larger errors.The acetate overlays were individually scanned and orthorectified using OrthoMapper based on the same equations developed for generating the orthophotos. Map unit boundaries were digitized on-screen into ArcGIS from the orthorectified overlays at a scale of approximately 1:25,000, using a combination of a digital USGS topographic 1:63,360-scale map layer (DRG) and the orthophoto mosaic layer to verify the position of the lines. Total horizontal accuracy of the mapped surficial-geologic contacts is thus on the order of 25 m or better, with somewhat lesser accuracy expected in areas of rugged relief.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 25
Horizontal_Positional_Accuracy_Explanation: mapped engineering-geologic contacts
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1948
Title: Tanacross A-4 Quadrangle
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: scale 1:63,360
Source_Scale_Denominator: 63360
Type_of_Source_Media: All Topo software
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1948
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: USGS Tanacross A-4, 1948- minor revisions 1973
Source_Contribution: base map
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1949
Title: Tanacross B-4 Quadrangle
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: scale 1:63,360
Source_Scale_Denominator: 63360
Type_of_Source_Media: All Topo software
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1949
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: USGS Tanacross B-4, 1949- minor revisions 1994
Source_Contribution: base map
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1948
Title: Tanacross B-5 Quadrangle
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: scale 1:63,360
Source_Scale_Denominator: 63360
Type_of_Source_Media: All Topo software
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1948
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: USGS Tanacross B-5, 1948 minor revisions 1994
Source_Contribution: base map
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1949
Title: Tanacross B-6 Quadrangle
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: scake 1:63,360
Source_Scale_Denominator: 63360
Type_of_Source_Media: All Topo software
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1949
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: USGS Tanacross B-6, 1949 minor revisions 1970
Source_Contribution: base map
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1955
Title: Tanacross C-6 Quadrangle
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: scale 1:63,360
Source_Scale_Denominator: 63360
Type_of_Source_Media: All Topo software
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1955
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: USGS Tanacross C-6, 1955- minor revisions 1982
Source_Contribution: base map
Source_Information:
Source_Citation:
Citation_Information:
Originator: Kreig, R.A.
Originator: Reger, R.D.
Publication_Date: 1982
Title:
Air-photo analysis and summary of landform soil properties along the route of the Trans-Alaska Pipeline System
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Geologic Report
Issue_Identification: GR-66
Publication_Information:
Publication_Place: Fairbanks, AK
Publisher: Alaska Division of Geological & Geophysical Surveys
Other_Citation_Details: 149 p.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1982
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Kreig and Reger, 1982
Source_Contribution:
Contains air-photo analysis and landform soil properties for trans-Alaska oil pipeline
Source_Information:
Source_Citation:
Citation_Information:
Originator: Pewe, T.L.
Originator: Reger, R.D.
Publication_Date: 1983
Title: Middle Tanana River valley
Geospatial_Data_Presentation_Form: book chapter
Series_Information:
Series_Name: Guidebook
Issue_Identification: GB 1
Publication_Information:
Publication_Place: Fairbanks, AK
Publisher: Alaska Division of Geological & Geophysical Surveys
Other_Citation_Details: p. 5-42
Larger_Work_Citation:
Citation_Information:
Originator: Pewe, T.L.
Originator: Reger, R.D.
Publication_Date: 1983
Title:
Guidebook to Permafrost and Quaternary Geology along the Richardson and Glenn Highways between Fairbanks and Anchorage, Alaska
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Guidebook
Issue_Identification: GB 1
Publication_Information:
Publication_Place: Fairbanks, AK
Publisher: Alaska Division of Geological & Geophysical Surveys
Other_Citation_Details: 263 p., 1 sheet, scale 1:250,000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1983
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Pewe and Reger, 1983
Source_Contribution: Contains information about Quaternary geology of Tanana Valley
Source_Information:
Source_Citation:
Citation_Information:
Originator: Carter, L.D.
Originator: Galloway, J.P.
Publication_Date: 1978
Title:
Preliminary engineering geologic maps of the proposed natural gas pipeline route in the Tanana River valley, Alaska
Geospatial_Data_Presentation_Form: doc
Series_Information:
Series_Name: Open-file Report
Issue_Identification: OFR 78-794
Publication_Information:
Publication_Place: United States
Publisher: U.S. Geological Survey
Other_Citation_Details: 26 p., 3 map sheets, scale 1:125,000
Source_Scale_Denominator: 125000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1978
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Carter and Galloway, 1978
Source_Contribution: Engineering geologic maps at 1:125,000
Source_Information:
Source_Citation:
Citation_Information:
Originator: Mason, O.K.
Originator: Beget, J.E.
Publication_Date: 1991
Title: Late Holocene flood history of the Tanana River, Alaska
Geospatial_Data_Presentation_Form: journal article
Publication_Information:
Publication_Place: United States
Publisher: Arctic and Alpine Research
Other_Citation_Details: v. 23, no. 4, p. 392-403.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1991
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Mason and Beget, 1991
Source_Contribution: Holocene flooding in Tanana valley
Source_Information:
Source_Citation:
Citation_Information:
Originator: Yarie, John
Originator: Viereck, Leslie
Originator: Van Cleve, Keith
Originator: Adams, Phyllis
Publication_Date: 1998
Title: Flooding and ecosystem dynamics along the Tanana River
Geospatial_Data_Presentation_Form: journal article
Publication_Information:
Publication_Place: United States
Publisher: BioScience
Other_Citation_Details: v. 48, no. 9, p. 690-695.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Yarie and others, 1998
Source_Contribution: Flooding along the Tanana River
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unknown
Title: Alaska High Altitude Aerial Photography Program
Geospatial_Data_Presentation_Form: prints and digital files
Publication_Information:
Publication_Place: unknown
Publisher: U.S. Geological Survey
Source_Scale_Denominator: 65000
Type_of_Source_Media: photographic print
Source_Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 198008
Single_Date/Time:
Calendar_Date: 197807
Single_Date/Time:
Calendar_Date: 198307
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: AHAP Aerial Photography
Source_Contribution:
Aerial photography used in surficial geology map unit interpretation
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1948
Title: Tanacross A-5 Quadrangle
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: scale 1:63,360
Source_Scale_Denominator: 63360
Type_of_Source_Media: All Topo Software
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1949
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: USGS Tanacross A-5, 1949- minor revisions 1973
Source_Contribution: base map
Process_Step:
Process_Description:
Digital cartography - Engineering geologic map polygons were derived from surficial geology map polygons using ArcMap 9.+. The map was then attributed and edited.
Source_Used_Citation_Abbreviation: USGS Tanacross A-4, 1948
Source_Used_Citation_Abbreviation: USGS Tanacross A-5, 1949
Source_Used_Citation_Abbreviation: USGS Tanacross B-4, 1949
Source_Used_Citation_Abbreviation: USGS Tanacross B-5, 1948
Source_Used_Citation_Abbreviation: USGS Tanacross B-6, 1949
Source_Used_Citation_Abbreviation: USGS Tanacross C-6, 1955
Source_Used_Citation_Abbreviation: AHAP Aerial Photography
Process_Date: 2009
Process_Step:
Process_Description:
Fieldwork - Reconnaissance field work was done in July-August 2007, and additional fieldwork was complete in July-August 2008. In addition to observations from ground traverses, materials properties were observed in several soil pits that were dug using shovels to maximum depth of 1.3 meters, in hand augured holes, and by observations of exposures along river banks, highway cuts, in gravel pits and along trench walls excavated as part of active fault studies.
Process_Date: 2008
Process_Step:
Process_Description:
Interpretation of engineering properties. Mapped surficial-geologic deposits were grouped according to similar engineering-geologic properties.
Source_Used_Citation_Abbreviation: Kreig and Reger, 1982
Source_Used_Citation_Abbreviation: Pewe and Reger, 1983
Source_Used_Citation_Abbreviation: Carter and Galloway, 1978
Source_Used_Citation_Abbreviation: Mason and Beget, 1991
Source_Used_Citation_Abbreviation: Yarie and others, 1998
Process_Date: 2009
Process_Step:
Process_Description:
Metadata creation - Metadata were assembled by T.D. Hubbard to FGDC Standards using Metavist 1.2, DGGS 7.05, a data entry program for FGDC metadata with XML output.
Process_Date: 2010
Process_Step:
Process_Description:
The shapefiles were edited to eliminate extraneous columns, the file originally titled outline.shp was renamed border.shp and the metadata was updated accordingly.
Process_Date: 2011

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 7
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -141.00000
Latitude_of_Projection_Origin: 0
False_Easting: 500000.0
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0000001
Ordinate_Resolution: 0.0000001
Planar_Distance_Units: meters
Planar_Coordinate_Layer_Name: eng_geology
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 7
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -141.00000
Latitude_of_Projection_Origin: 0
False_Easting: 500000.0
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0000001
Ordinate_Resolution: 0.0000001
Planar_Distance_Units: meters
Planar_Coordinate_Layer_Name: border
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Attribute_Layer_Name: border
Entity_Type_Label: border.shp
Entity_Type_Definition: polygon outlining boundary of map area
Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys
Attribute:
Attribute_Label: Shape
Attribute_Definition: shape of polygon outlining map boundary
Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys
Attribute_Domain_Values:
Unrepresentable_Domain: shape of map area
Detailed_Description:
Entity_Type:
Entity_Attribute_Layer_Name: eng_geol
Entity_Type_Label: eng_geol.shp
Entity_Type_Definition: engineering geology map unit polygons
Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys
Attribute:
Attribute_Label: map_unit
Attribute_Definition: Engineering geology map unit, described in text and codeset.pdf
Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name: PIR2009-6B_codeset.pdf
Codeset_Source:
Alaska Division of Geological & Geophysical Surveys <http://www.dggs.alaska.gov/metadata/PIR2009-6B_codeset.pdf>

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Contact_Address:
Address_Type: mailing and physical
Address: 3354 College Road
City: Fairbanks
State_or_Province: AK
Postal_Code: 99709-3707
Country: USA
Contact_Voice_Telephone: 907-451-5020
Contact_Facsimile_Telephone: 907-451-5050
Contact_Electronic_Mail_Address: dggspubs@alaska.gov
Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays
Contact_Instructions:
Please view our website (<http://www.dggs.alaska.gov>) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
Distribution_Liability:
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.
Standard_Order_Process:
Non-digital_Form:
The current publication may be available on paper. DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard.Turn around time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping ammount.
Fees: see <http://www.dggs.alaska.gov/pubs/id/19742>
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: SHP
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://www.dggs.alaska.gov/pubs/id/19742>
Fees: Free download

Metadata_Reference_Information:
Metadata_Date: 20101004
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Metadata manager
Contact_Address:
Address_Type: mailing and physical
Address: 3354 College Road
City: Fairbanks
State_or_Province: AK
Postal_Code: 99709-3707
Country: USA
Contact_Voice_Telephone: 907-451-5020
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Use_Constraints:
If the user has modified this metadata file in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent this metadata file, 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.
Metadata_Extensions:
Online_Linkage: <http://www.dggs.alaska.gov/metadata/dggs.ext>
Profile_Name: dggs metadata extensions

Generated by mp version 2.9.6 on Wed Dec 7 10:04:59 2011