Identification_Information: Citation: Citation_Information: Originator: Hubbard, T.D. Originator: Reger, R.D. Originator: Gallagher, P.E. Publication_Date: 2013 Title: Engineering-geologic map of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2012-1B 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://dx.doi.org/10.14509/24624 Description: Abstract: During 2009, the Alaska Division of Geological & Geophysical Surveys continued a program, begun in 2006, of reconnaissance mapping of surficial geology in the proposed natural-gas pipeline corridor through the upper Tanana River valley. The study area is a 12-mi-wide (19.3-km-wide) area that straddles the Alaska Highway from the western boundaries of the Tanacross B-3 and A-3 quadrangles near Tetlin Junction eastward to the eastern boundaries of the Nabesna D-1 and C-1 quadrangles along the Canada border. Mapping during 2008-2009 in the Tanacross and Nabesna quadrangles linked with the mapping completed in the Tanacross, Big Delta and Mt. Hayes quadrangles in 2006-2008. Surficial geology was initially mapped in this third corridor segment by interpreting ~1:65,000-scale, false-color, infrared aerial photographs taken in July 1978 and August 1981 and plotting unit boundaries on acetate overlays. Verification of photo mapping was accomplished during the 2008 and 2009 summer field seasons, when map units were described, soil pits were hand dug, and samples were collected for analyses. The engineering-geologic map is derived electronically from the surficial-geologic map and shows the distribution of surficial-geologic and bedrock units grouped genetically with common properties that are typically significant for engineering applications. Purpose: The Alaska Division of Geological & Geophysical Surveys conducted this project, funded by the state legislature, to evaluate the geology, geohazard and material resources along the Alaska Highway corridor from Delta Junction to the Canada border. The work was completed in preparation for a proposed natural gas pipeline, so that a baseline of geologic data would be publicly available upon which preliminary decisions could be made. The work was designed to serve as the springboard for the detailed work which would be required if a pipeline were to be built along this corridor. Supplemental_Information: Unit information and descriptions are included on each map sheet. The DGGS metadata standard extends the FGDC standard to include elements that are required to facilitate our internal data management. These elements, referred to as "layers," group and describe files that have intrinsic logical or topological relationships. Attribute information for the layers (entity) is included in this metadata file under the "Entity_and_Attribute_Information" section. The layers are titled: >border: outline shape of the study area >MapUnitPolys: map unit polygons Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2009 Ending_Date: 2013 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -142.5 East_Bounding_Coordinate: -141 North_Bounding_Coordinate: 63.378 South_Bounding_Coordinate: 62.529 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Aeolian Theme_Keyword: Alaska Pipeline Theme_Keyword: Engineering Theme_Keyword: Engineering Geology Theme_Keyword: Eolian Theme_Keyword: Gasline Theme_Keyword: Geologic Map Theme_Keyword: Geology Theme_Keyword: Geologic Hazards Theme_Keyword: Landslide Theme_Keyword: Loess Theme_Keyword: Natural Gas Theme_Keyword: Permafrost Theme_Keyword: Unconsolidated Deposits Theme_Keyword: Transportation Corridor Theme_Keyword: Proposed Natural Gas Pipeline Theme_Keyword: Landslide Deposit Theme_Keyword: Retransported Loess Theme_Keyword: Hazards Theme_Keyword: Periglacial Slope Failure Theme_Keyword: Thawing Permafrost Theme_Keyword: Translational Landslide Theme_Keyword: Pipeline Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Alaska, State of Place_Keyword: Tanana Basin Place_Keyword: Tanana River Place_Keyword: Taylor Highway Place_Keyword: Nabesna Quadrangle Place_Keyword: Tanacross Quadrangle Place_Keyword: Canada Place_Keyword: Northway Place_Keyword: Northway Junction Place_Keyword: Alaska Highway Corridor Place_Keyword: Beaver Creek Place_Keyword: Tetlin Place_Keyword: Nabesna Place_Keyword: Tetlin Junction Place_Keyword: Midway Lake Place_Keyword: Tetlin National Wildlife Refuge Place_Keyword: Scottie Creek Place_Keyword: Nabesna River Place_Keyword: Chisana River Temporal: Temporal_Keyword_Thesaurus: Walker, J. D., and Geissman, J. W., compilers, 2009, Geologic Time Scale: Geological Society of America Temporal_Keyword: Holocene Temporal_Keyword: Pleistocene Temporal_Keyword: Quaternary 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: Alaska Division of Geological & Geophysical Surveys Contact_Person: James Weakland Contact_Position: GIS Analyst 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)451-5029 Contact_Voice_Telephone: (907)451-5020 Contact_Electronic_Mail_Address: dggsgis@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Data_Set_Credit: Digital cartography by: J.R. Weakland (2011, 2012), L .E. Southerland (2012), and P.E. Gallagher (2011, 2012, 2013), Reviewed by: R.A. Combellick (2010) Funding for this project is from the Alaska State FY09, FY10, and FY11 Capital Improvement Projects Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 10.0.0.2414 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 Alaska Highway 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, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 42 p Online_Linkage: http://dx.doi.org/10.14509/21121 Cross_Reference: Citation_Information: Originator: Carver, G.A. Originator: Bemis, S.P. Originator: Solie, D.N. Originator: Obermiller, K.E. Publication_Date: 2008 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, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 32 p Online_Linkage: http://dx.doi.org/10.14509/17901 Cross_Reference: 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 Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2009-6B Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 4 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/19742 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 Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2009-6C Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 13 p., 4 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/19743 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: map 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://dx.doi.org/10.14509/17981 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Solie, D.N. Publication_Date: 2008 Title: Reconnaissance interpretation of permafrost, Alaska Highway corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: document, map Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3C Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 10 p., 2 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/17621 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Hubbard, T.D. Originator: Carver, G.A. Publication_Date: 2011 Title: Surficial geology of Alaska Highway corridor, Robertson River to Tetlin Junction, Alaska Geospatial_Data_Presentation_Form: document, map Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2009-6A Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 53 p., 4 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/19741 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Hubbard, T.D. Originator: Gallagher, P.E. Publication_Date: 2012 Title: Reconnaissance interpretation of 1978-1981 permafrost, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska Geospatial_Data_Presentation_Form: document, map Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2012-1C Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 27 p., 2 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/23444 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Stevens, D.S.P. Originator: Solie, D.N. Publication_Date: 2008 Title: Surficial-geologic map, Delta Junction to Dot Lake, Alaska Highway corridor Geospatial_Data_Presentation_Form: document, map 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: 48 p., 2 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/17961 Cross_Reference: Citation_Information: Originator: Solie, D.N. Originator: Werdon, M.B. Originator: Newberry, R.J. Originator: Freeman, L.K. Originator: Lessard, R.R. Publication_Date: 2008 Title: Major-oxide, minor-oxide, trace-element and geochemical data from rocks collected in the Alaska Highway corridor Mount Hayes Quadrangle, Alaska in 2006 and 2007 Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2008-2 v. 1.0.1 Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 23 p Online_Linkage: http://dx.doi.org/10.14509/16021 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Engineering-geologic map units were derived from the surficial-geologic map. Physical properties of engineering-geologic map units are interpretive, based on extrapolation from verified localities and from previously published reports and data. Certainty in identification of the map units varies due to the scale and interpretive nature of the mapping. The geologic unit interpretations and boundaries presented in this report result from interpretation of nominal 1:65,000-scale aerial photographs as well as investigative traverses throughout the map area, aerial reconnaissance via helicopter, and examination of road-cuts and river exposures. Potential geologic hazards are inferred from the typical physical properties of map units, including sediment texture and ground-ice content, and their typical topographic settings. Except for a few test pits, no subsurface investigations or laboratory analyses were used 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. This map has received one technical review by a scientist familiar with the subject matter. We incorporated the reviewer's suggestions into the final draft. Logical_Consistency_Report: Polygon topology was present and clean on the original ArcGIS geodatabase. All polygon features were topologically validated using ArcGIS prior to export to shapefile 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. 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: All boundaries are inferred or approximately located. Surficial mappers recorded observations on 1:50,000 scale (nominal) color-infrared aerial photographs and 1:63,360 scale topographic base maps. We believe the total horizontal accuracy of the mapped surficial-geologic contacts is on the order of 25 m or better, with somewhat lesser accuracy expected in areas of rugged relief. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1972 Title: Tanacross A-1 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Washington D.C. Publisher: U.S. Geological Survey Other_Citation_Details: 1 Sheet Source_Scale_Denominator: 63360 Type_of_Source_Media: USGS topo map Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1952 Single_Date/Time: Calendar_Date: 1971 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross A-1, 1952- minor revisions 1971 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1974 Title: Tanacross A-2 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Washington D.C. Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet Source_Scale_Denominator: 63360 Type_of_Source_Media: USGS topo map Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1955 Single_Date/Time: Calendar_Date: 1972 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross A-2, 1955- minor revisions 1972 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2000 Title: Tanacross A-3 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Washington D.C. Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet Source_Scale_Denominator: 63360 Type_of_Source_Media: USGS topo map Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1948 Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross A-3, 1948- minor revisions 2000 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1967 Title: Tanacross B-3 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Washington D.C. Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet Source_Scale_Denominator: 63360 Type_of_Source_Media: USGS topo map Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1949 Single_Date/Time: Calendar_Date: 1964 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Tanacross B-3, 1949- minor revisions 1964 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1963 Title: Nabesna C-1 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Washington D.C. Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet Source_Scale_Denominator: 63360 Type_of_Source_Media: USGS topo map Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1955 Single_Date/Time: Calendar_Date: 1963 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Nabesna C-1, 1955- minor revisions 1963 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1967 Title: Nabesna D-1 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Washington D.C Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet Source_Scale_Denominator: 63360 Type_of_Source_Media: USGS topo map Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1952 Single_Date/Time: Calendar_Date: 1967 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Nabesna D-1, 1952- minor revisions 1967 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1978 Title: Nabesna D-2 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet Source_Scale_Denominator: 63360 Type_of_Source_Media: USGS topo map Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1955 Single_Date/Time: Calendar_Date: 1978 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Nabesna D-2, 1955- minor revisions 1978 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2000 Title: Nabesna D-3 Quadrangle Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: 1 sheet Source_Scale_Denominator: 63360 Type_of_Source_Media: USGS topo map Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 1955 Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Nabesna D-3, 1955- minor revisions 2000 Source_Contribution: base map Source_Information: Source_Citation: Citation_Information: Originator: Reger, R.D. Originator: Hubbard, T.D. Originator: Gallagher, P.E. Publication_Date: 2012 Title: Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska Geospatial_Data_Presentation_Form: document, map Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2012-1A Publication_Information: Publication_Place: Fairbanks, AK, USA Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 25 p., 2 sheets, scale 1:63,360 Online_Linkage: http://dx.doi.org/10.14509/23443 Source_Scale_Denominator: 63360 Type_of_Source_Media: document, map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2012 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reger, R.D. and others, 2012 Source_Contribution: surficial-geologic units Process_Step: Process_Description: Geologic unit interpretation - Surficial-geologic units were initially identified by interpretation of ~1:65,000-scale false-color infrared aerial photographs taken in July 1978 and August 1981 and locally verified by field checking in 2008, 2009, and 2010. We interpreted the physical properties of the surficial-geologic units based on extrapolation from verified localities and from previously published reports and data. We inferred the potential geologic hazards from the typical physical properties of map units, including sediment texture and ground-ice content, and their typical topographic settings. Source_Used_Citation_Abbreviation: Reger, R.D. and others, 2012 Process_Date: 2010 Process_Step: Process_Description: GIS analysis and digital cartography - This map is derived electronically from the surficial-geologic map of the eastern corridor segment (Reger and others, 2012) using Geographic Information System (GIS) software. Surficial geologic units were grouped based on common properties that are typically significant for engineering applications. Source_Used_Citation_Abbreviation: USGS Tanacross A-1, 1952- minor revisions 1971 Source_Used_Citation_Abbreviation: USGS Tanacross A-2, 1955- minor revisions 1972 Source_Used_Citation_Abbreviation: USGS Tanacross A-3, 1948- minor revisions 2000 Source_Used_Citation_Abbreviation: USGS Tanacross B-3, 1949- minor revisions 1964 Source_Used_Citation_Abbreviation: USGS Nabesna C-1, 1955- minor revisions 1963 Source_Used_Citation_Abbreviation: USGS Nabesna D-1, 1952- minor revisions 1967 Source_Used_Citation_Abbreviation: USGS Nabesna D-2, 1955- minor revisions 1978 Source_Used_Citation_Abbreviation: USGS Nabesna D-3, 1955- minor revisions 2000 Process_Date: 2012 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: 0.999600 Longitude_of_Central_Meridian: -141 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000001 Ordinate_Resolution: 0.000001 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: border 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: 0.999600 Longitude_of_Central_Meridian: -141 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000001 Ordinate_Resolution: 0.000001 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: MapUnitPolys Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: North American Datum of 1927 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.9786982 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: border Entity_Type_Label: pir2012-1b-border Entity_Type_Definition: outline shape of the study area Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: MapUnitPolys Entity_Type_Label: pir2012-1b-MapUnitPolys Entity_Type_Definition: map unit polygons Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: map_unit Attribute_Definition: Map unit label shown on map and described in text. See print version of map for more detail. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: A1 Enumerated_Domain_Value_Definition: Alluvial deposits - Qa, Qaa Enumerated_Domain_Value_Definition_Source: Units Qa, Qaa from Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: A2 Enumerated_Domain_Value_Definition: Alluvial deposits - Qai Enumerated_Domain_Value_Definition_Source: Unit Qai in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: A3 Enumerated_Domain_Value_Definition: Alluvial deposits - Qab Enumerated_Domain_Value_Definition_Source: Unit Qab in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: A4 Enumerated_Domain_Value_Definition: Alluvial deposits - Qat, Qfte Enumerated_Domain_Value_Definition_Source: Units Qat, Qfte in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: A6 Enumerated_Domain_Value_Definition: Alluvial deposits - Qer Enumerated_Domain_Value_Definition_Source: Units Qer in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: C Enumerated_Domain_Value_Definition: Colluvial deposits - Qc, Qcf, Qcl Enumerated_Domain_Value_Definition_Source: Units Qc, Qcf, Qcl in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: E1 Enumerated_Domain_Value_Definition: Eolian deposits - Qe Enumerated_Domain_Value_Definition_Source: Units Qe in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: E2 Enumerated_Domain_Value_Definition: Eolian deposits - Qes Enumerated_Domain_Value_Definition_Source: Units Qes in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: L1 Enumerated_Domain_Value_Definition: Lake deposits - Qlb, Qld Enumerated_Domain_Value_Definition_Source: Units Qlb, Qld in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: H Enumerated_Domain_Value_Definition: Manmade deposits - Qhf Enumerated_Domain_Value_Definition_Source: Units Qhf in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: P Enumerated_Domain_Value_Definition: Paludal peat deposits - P Enumerated_Domain_Value_Definition_Source: Units Qp in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: B Enumerated_Domain_Value_Definition: Bedrock and residual - b, b', b+b' Enumerated_Domain_Value_Definition_Source: Units b, b', b+b' in Reger, R.D., Hubbard, T.D., and Gallagher, P.E., 2012, Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., 2 sheets, scale 1:63,360. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: lake Enumerated_Domain_Value_Definition: location of modern lake Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey topographic maps: Tanacross A-1, 1952- minor revisions 1971, Tanacross A-2, 1955- minor revisions 1972, Tanacross A-3, 1948- minor revisions 2000, Tanacross B-3, 1949- minor revisions 1964, Nabesna C-1, 1955- minor revisions 1963, Nabesna D-1, 1952- minor revisions 1967, Nabesna D-2, 1955- minor revisions 1978, Nabesna D-3, 1955- minor revisions 2000 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska 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. 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