{"action":"create","ckan_id":null,"date_created":"Sat, 14 Mar 2026 21:14:18 GMT","date_finished":null,"harvest_job_id":"be129330-b656-44ec-b4d7-f277bf7d7116","harvest_source_id":"31f41541-38a0-400b-b240-10ebcb0acd9a","id":"92c7560a-c431-4c34-9e6d-d6567cd6b298","identifier":"https://dggs.alaska.gov/webpubs/metadata/PIR2012-1A.xml","parent_identifier":null,"source_hash":"aa1828bf550d0418ad2a5d0901a11e54bceda81441469b0eada59549705da156","source_raw":"\n\n\n\n\nReger, R.D.\nHubbard, T.D.\nGallagher, P.E.\n2012\nSurficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska\ndocument, map, vector digital data\n\nPreliminary Interpretive Report\nPIR 2012-1A\n\n\nFairbanks, AK, USA\nAlaska Division of Geological & Geophysical Surveys\n\n27 p., 2 sheets, scale 1:63,360\nhttp://dx.doi.org/10.14509/23443\n\n\n\nDuring 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.\nThe 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. This was 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.\n\nUnit 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:\n >surf-geology: polygons of surficial-geologic map units \n >border: outline shape of the study area \n >localities: location of soil pits, radiocarbon samples, fossil localities, soil moisture localities, tephra locality, and ventifact site discussed in text\n\n\n\n\n\n\n1978\n\n\n1981\n\n\n2008\n\n\n2009\n\n\n2010\n\n\n2011\n\n\n2012\n\n\n\nground condition\n\n\nComplete\nUnknown\n\n\n\n-142.5\n-141\n63.378\n62.529\n\n\n\n\nISO 19115 Topic Category\ngeoscientificInformation\n\n\nAlaska Division of Geological & Geophysical Surveys\nDunes\nEolian\nGeologic Hazards\nGeologic Map\nGeologic Materials\nGeological Process\nGeology\nGeomorphology\nProposed Natural Gas Pipeline\nRemote Sensing\nSurficial Geology\nSurficial\nTransportation Corridor\nUnconsolidated Deposits\n\n\nAlaska Division of Geological & Geophysical Surveys\nAlaska Highway Corridor\nAlaska Range\nAlaska, State of\nTanacross\nTanacross Quadrangle\nNabesna\nNabesna Quadrangle\nTetlin Junction\nCanada\nMidway Lake\nTetlin National Wildlife Refuge\nBeaver Creek\nScottie Creek\nTanana River\nNabesna River\nChisana River\nNorthway\nNorthway Junction\n\n\nAlaska Division of Geological & Geophysical Surveys\nDelta Glaciation\nDonnelly Glaciation\n\n\nAlaska Division of Geological & Geophysical Surveys\nPleistocene\nQuaternary\nHolocene\n\n\nThis 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).\nAny 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.\n\n\n\nAlaska Division of Geological & Geophysical Surveys\nJames Weakland\n\nGIS Analyst\n\nmailing and physical\n
3354 College Road
\nFairbanks\nAK\n99709-3707\nUSA\n\n(907)451-5029\n(907)451-5020\ndggsgis@alaska.gov\n8 am to 4:30 pm, Monday through Friday, except State holidays\n\n\nThis research was supported by Alaska State Capital Improvement Projects funding. The authors gratefully acknowledge the helpful review by Diana N. Solie, and able cartographic assistance by James Weakland.\nMicrosoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 10; ESRI ArcGIS 10\n\n\nCarver, G.A.\nBemis, S.P.\nSolie, D.N.\nCastonguay, S.R.\nObermiller, K.E.\n2010\nActive and potentially active faults in or near the Alaska Highway corridor, Dot Lake to Tetlin Junction, Alaska\ndocument\n\nPreliminary Interpretive Report\nPIR 2010-1\n\n\nFairbanks, AK, USA\nState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys\n\n42 p.\nhttp://dx.doi.org/10.14509/21121\n\n\n\n\nCarver, G.A.\nBemis, S.P.\nSolie, D.N.\nObermiller, K.E.\n2008\nActive and potentially active faults in or near the Alaska Highway corridor, Delta Junction to Dot Lake, Alaska\ndocument\n\nPreliminary Interpretive Report\nPIR 2008-3D\n\n\nFairbanks, AK, USA\nState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys\n\n32 p.\nhttp://dx.doi.org/10.14509/17901\n\n\n\n\nHubbard, T.D.\nReger, R.D.\n2010\nEngineering-geologic map of the Alaska Highway corridor, Robertson River to Tetlin Junction, Alaska\nMap sheet and vector digital data\n\nPreliminary Interpretive Report\nPIR 2009-6B\n\n\nFairbanks, AK, USA\nState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys\n\n4 sheets, scale 1:63,360.\nhttp://dx.doi.org/10.14509/19742\n\n\n\n\nHubbard, T.D.\nReger, R.D.\n201010\nModel for Late Wisconsinan Massive Outburst Flooding, Tok River Valley, Northeastern Alaska Range\nconference proceedings\n\nGeological Society of America Abstracts with Programs\nvol. 42, No. 5\n\n\nBoulder, CO\nGeological Society of America\n\n703 p. Abstract on p. 310\n\n\n\n\nHubbard, T.D.\nReger, R.D.\nGallagher, P.E.\n2011\nUsing lidar to refine geologic mapping and interpretations in the upper Tanana River valley, central Alaska\nconference proceedings\n\nGeological Society of America Abstracts with Programs\nv. 43, no. 5\n\n\nBoulder, CO\nGeological Society of America\n\np. 623\n\n\n\n\nKoehler, R.D.\nCarver, G.A.\n2012\nActive and potentially active faults along the Alaska Highway corridor, Tetlin Junction to the Canada border\ndocument\n\nPreliminary Interpretive Report\nPIR 2012-2\n\n\nFairbanks, AK, USA\nAlaska Division of Geological & Geophysical Surveys\n\n23 p\nhttp://dx.doi.org/10.14509/23923\n\n\n\n\nReger, R.D.\nHubbard, T.D.\n2009\nEvidence for late Wisconsinan outburst floods in the Tok-Tanacross Basin. upper Tanana River Valley, east-central Alaska\nconference proceedings\n\nGeological Society of America Abstracts with Programs\nV. 41, No. 7\n\n\nBoulder, CO\nGeological Society of America\n\np. 637\n\n\n\n\nReger, R.D.\nHubbard, T.D.\n2010\nReconnaissance interpretation of 1978-1983 permafrost, Alaska Highway corridor, Robertson River to Tetlin Junction, Alaska\nDocument, map sheet and vector digital data\n\nPreliminary Interpretive Report\nPIR 2009-6C\n\n\nFairbanks, AK, USA\nState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys\n\n13 p., 4 sheets, scale 1:63,360.\nhttp://dx.doi.org/10.14509/19743\n\n\n\n\nReger, R.D.\nHubbard, T.D.\nCarver, G.A.\n2011\nSurficial geology of Alaska Highway corridor, Robertson River to Tetlin Junction, Alaska\ndocument, map sheet and vector digital data\n\nPreliminary Interpretive Report\nPIR 2009-6A\n\n\nFairbanks, AK, USA\nState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys\n\n53 p., 4 sheets, scale 1:63,360.\nhttp://dx.doi.org/10.14509/19741\n\n\n\n\nReger, R.D.\nHubbard, T.D.\nGallagher, P.E.\n2012\nReconnaissance interpretation of 1978-1981 permafrost, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska\nDocument, map sheet and vector digital data\n\nPreliminary Interpretive Report\nPIR 2012-1C\n\n\nFairbanks, AK, USA\nState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys\n\n27 p., 2 sheets, scale 1:63,360.\nhttp://dx.doi.org/10.14509/23444\n\n\n\n\nReger, R.D.\nHubbard, T.D.\nGallagher, P.E.\nUnknown\nEngineering geology map, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska\nDocument, map sheet and vector digital data\n\nPreliminary Interpretive Report\nPIR 2012-1B\n\n\nFairbanks, AK, USA\nState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys\n\n2 sheets, scale 1:63,360. Report included. IN PRESS\n\n\n\n\nReger, R.D.\nSolie, D.N.\n2008\nEngineering-geologic map, Alaska Highway corridor, Delta Junction to Dot Lake, Alaska\nmap sheet and vector digital data\n\nPreliminary Interpretive Report\nPIR 2008-3B\n\n\nFairbanks, AK, USA\nState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys\n\n2 sheets, scale 1:63,360.\nhttp://dx.doi.org/10.14509/17981\n\n\n\n\nReger, R.D.\nSolie, D.N.\n2008\nReconnaissance interpretation of permafrost, Alaska Highway corridor, Delta Junction to Dot Lake, Alaska\nDocument, map sheet and vector digital data\n\nPreliminary Interpretive Report\nPIR 2008-3C\n\n\nFairbanks, AK, USA\nState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys\n\n10 p., 2 sheets, scale 1:63,360.\nhttp://dx.doi.org/10.14509/17621\n\n\n\n\nReger, R.D.\nStevens, D.S.P.\nSolie, D.N.\n2008\nSurficial-geologic map, Delta Junction to Dot Lake, Alaska Highway corridor\ndocument, map\n\nPreliminary Interpretive Report\nPIR 2008-3A\n\n\nFairbanks, AK, USA\nAlaska Division of Geological & Geophysical Surveys\n\n48 p., 2 sheets, scale 1:63,360\nhttp://dx.doi.org/10.14509/17961\n\n\n\n\nReger, R.D.\nStevens, D.S.P\nSolie, D.N.\n2008\nEvidence of multiple outburst floods, upper Tanana River valley, east-central Alaska\nconference proceedings\n\nGeological Society of America Abstracts with Programs\nv. 40, no. 1\n\n\nBoulder, CO\nGeological Society of America\n\np. 36.\n\n\n\n\n\nSoil colors were described using the Munsell soil color charts. The Wentworth scale was used for grain size classification. Soil horizon descriptions in the map area used the U.S. Soil Conservation Service soil taxonomy (Soil Survey Staff, 1975). Sediment samples were collected for sieve analysis and radiocarbon age dating. Analytical data described above were utilized in developing the geologic interpretations presented in this report. The accuracy of the map unit boundary locations vary due to the scale and interpretive nature of the mapping but are expected to be accurate to at least 50 ft. Map units labeled with a "?" are considered to have an uncertain assignation. Information from previous geologic reports was incorporated during the interpretation process. To check attribute accuracy of the digital files we visually compared the original compilation against test plots of the files and corrected discrepancies between the digital geospatial dataset and the original analog as needed. The geologic interpretations presented in this report have undergone technical review by a geologist 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.\n\nPolygon topology is present and clean on the original geospatial dataset. All polygon features were topologically validated using the ESRI ArcGIS 10 software prior to export to shape file format. The logical consistency of the point files has been visually checked but not systematically verified.\nThis dataset includes shapefiles that contain information about surficial geologic units mapped in this area. This dataset utilizes field observations and air photo interpretations. It includes geospatial information about units traceable on air photos at a scale of ~1:65000 and/or in the field. The dataset displays: surficial geologic units and contacts, inferred geologic contacts, and point localities discussed in the text. Subsurface data available for this investigation includes about ~15 soil pits dug to depths no more than 1.3 m and observations of exposures in gravel pits, highway cuts, and river bank exposures.\n\n\nThe surficial interpretations were first hand-drawn, using a magnifying stereoscope, onto acetate air-photo overlays at the scale of the air-photos (approximately inch to the mile). The accuracy of the map unit boundary locations varies due to the scale and interpretive nature of the mapping and pen line width of approximately 0.001 meters which is equivalent to approximately 1.5 meters on the ground. The hand drawn map unit boundaries are expected to be accurate to at least 15 meters. Following interpretation, acetate overlays were then individually scanned, orthorectified and georeferenced using Orthomapper, v. 3.6. The air-photos were orthorectified, photo-mosaiced and georeferenced. Surficial unit boundaries were digitized on-screen into ArcGIS from the orthorectified overlays at a scale more detailed than 1:63,360, using a combination of a USGS topographic 1:63.360 map layer and the air-photo photomosaic layer to verify the position of the lines and points. Map error is induced by: (1) Scanning and orthorectifying air photos and overlays. The digitizing RMS error is 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. 2) On-screen digitizing from orthorectified overlays. The accuracy of the human operator digitizing polylines and point localities is related to the accuracy of interpretations from the orthorectified photos and overlays. 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. Coordinates of soil pits, radiocarbon sampling localities, and other field sites that are discussed in the text were recorded using a Garmin GPS model 76CSx with an estimated precision generally less than 10 meters.\n\n\n\n\n\n\nU.S. Geological Survey\n1972\nTanacross A-1 Quadrangle\nmap\n\nWashington D.C.\nU.S. Geological Survey\n\n1 Sheet\n\n\n63360\nUSGS topo map\n\n\n\n\n1952\n\n\n1971\n\n\n\nground condition\n\nUSGS Tanacross A-1, 1952- minor revisions 1971\nbase map\n\n\n\n\nU.S. Geological Survey\n1974\nTanacross A-2 Quadrangle\nmap\n\nWashington D.C.\nU.S. Geological Survey\n\n1 sheet\n\n\n63360\nUSGS topo map\n\n\n\n\n1955\n\n\n1972\n\n\n\nground condition\n\nUSGS Tanacross A-2, 1955- minor revisions 1972\nbase map\n\n\n\n\nU.S. Geological Survey\n2000\nTanacross A-3 Quadrangle\nmap\n\nWashington D.C.\nU.S. Geological Survey\n\n1 sheet\n\n\n63360\nUSGS topo map\n\n\n\n\n1948\n\n\n2000\n\n\n\nground condition\n\nUSGS Tanacross A-3, 1948- minor revisions 2000\nbase map\n\n\n\n\nU.S. Geological Survey\n1967\nTanacross B-3 Quadrangle\nmap\n\nWashington D.C.\nU.S. Geological Survey\n\n1 sheet\n\n\n63360\nUSGS topo map\n\n\n\n\n1949\n\n\n1964\n\n\n\nground condition\n\nUSGS Tanacross B-3, 1949- minor revisions 1964\nbase map\n\n\n\n\nU.S. Geological Survey\n1963\nNabesna C-1 Quadrangle\nmap\n\nWashington D.C.\nU.S. Geological Survey\n\n1 sheet\n\n\n63360\nUSGS topo map\n\n\n\n\n1955\n\n\n1963\n\n\n\nground condition\n\nUSGS Nabesna C-1, 1955- minor revisions 1963\nbase map\n\n\n\n\nU.S. Geological Survey\n1967\nNabesna D-1 Quadrangle\nmap\n\nWashington D.C\nU.S. Geological Survey\n\n1 sheet\n\n\n63360\nUSGS topo map\n\n\n\n\n1952\n\n\n1967\n\n\n\nground condition\n\nUSGS Nabesna D-1, 1952- minor revisions 1967\nbase map\n\n\n\n\nU.S. Geological Survey\n1978\nNabesna D-2 Quadrangle\nmap\n\nReston, VA\nU.S. Geological Survey\n\n1 sheet\n\n\n63360\nUSGS topo map\n\n\n\n\n1955\n\n\n1978\n\n\n\nground condition\n\nUSGS Nabesna D-2, 1955- minor revisions 1978\nbase map\n\n\n\n\nU.S. Geological Survey\n2000\nNabesna D-3 Quadrangle\nmap\n\nReston, VA\nU.S. Geological Survey\n\n1 sheet\n\n\n63360\nUSGS topo map\n\n\n\n\n1955\n\n\n2000\n\n\n\nground condition\n\nUSGS Nabesna D-3, 1955- minor revisions 2000\nbase map\n\n\n\n\nCarter, L.D.\nGalloway, J.P.\n1978\nPreliminary engineering geologic maps of the proposed natural gas pipeline route in the Tanana River valley, Alaska\ndocument\n\nOpen-file report\nOF 78-794\n\n\nUnited States\nU.S. Geological Survey\n\n26 p., 3 map sheets, scale 1:125,000\n\n\npaper\n\n\n\n1978\n\n\nground condition\n\nCarter and Galloway, 1978\nEngineering geologic maps at 1:125,000\n\n\n\n\nDuk-Rodkin, Alejandra\nBarendregt, R.W.\nFroese, D.G.\nWeber, Florence\nEnkin, Randy\nSmith, I.R.\nWaters, Pamela\nKlassen, Rudy\n2004\nTiming and extent of Plio-Pleistocene glaciations in northwestern Canada\nbook chapter\n\nDevelopment in Quaternary Science\nv.2\n\n\nNew York\nElsevier\n\np. 313-345\n\n\nEhlers, J.\nGibbard, P.L.\n2004\nQuaternary glaciations-extent and chronology, part II: North America\nbook chapter\n\nDevelopment in Quaternary Science\nv. 2\n\n\nNew York\nElsevier\n\np. 313-345\n\n\n\n\npaper\n\n\n\n2004\n\n\nground condition\n\nDuk-Rodkin and others, 2004\nInformation about timing of glaciation in Canada and Alaska\n\n\n\n\nEaston, N.A.\nYesner, D.R.\nHutchinson, Vance\nSchnurr, Peter\nBaker, Christopher\n2009\nWisconsin-interstadial(?), terminal-Pleistocene, and early Holocene radiocarbon dates from the Little John site, southwest Yukon Territory, Canada\njournal article\n\nCurrent Research in the Pleistocene\nv. 26\n\np. 47-50\n\n\npaper\n\n\n\n2009\n\n\nground condition\n\nEaston and others, 2009\nInformation about radiocarbon dates in northern Canada\n\n\n\n\nFernald, A.T.\n1965\nGlaciation in the Nabesna River area, upper Tanana River valley, Alaska\nchapter\n\nU.S. Geological Survey Professional Paper\n525-C\n\np. 120-123.\n\n\nU.S. Geological Survey\n1965\nGeological survey research 1965, Chapter C\nreport\n\n\n\n\npaper\n\n\n\n1965\n\n\nground condition\n\nFernald, 1965a\nInformation about Glaciation in the Nabesna River and upper Tanana River valley\n\n\n\n\nFernald, A.T\n1965\nRecent history of the upper Tanana River Lowland, Alaska\nChapter\n\nU.S. Geological Survey Professional Paper\n525-C\n\np. 124-127\n\n\nU.S. Geological Survey\n1965\nGeological survey research 1965, Chapter C\nreport\n\n\n\n\npaper\n\n\n\n1965\n\n\nground condition\n\nFernald, 1965b\nInformation about history of upper Tanana River lowland\n\n\n\n\nFoster, H.L.\n1970\nReconnaissance geologic map of the Tanacross Quadrangle, Alaska\nmap\n\nU.S. Geological Survey Miscellaneous Geologic Investigations Map\nI-593\n\n\nunited states\nU.S. Geological Survey\n\n1 sheet\n\n\n250000\npaper\n\n\n\n1970\n\n\nground condition\n\nFoster, 1970\nContains geologic information about the Tanacross Quadrangle\n\n\n\n\nHamilton, T.D.\n1994\nLate Cenozoic glaciation of Alaska\nbook chapter\n\nGeology of North America\nv. G-1\n\n\nUnited States\nGeological Society of America\n\np. 813-844\n\n\nPlafker, George\nBerg, H.C.\n1994\nThe Geology of Alaska\nbook chapter\n\nGeology of North America\nv. G-1\n\n\nUnited States\nGeological Society of America\n\np. 813-844\n\n\n\n\npaper\n\n\n\n1994\n\n\nground condition\n\nHamilton, 1994\nLate Cenozoic glaciation of Alaska\n\n\n\n\nKreig, R.A.\nReger, R.D.\n1976\nPreconstruction terrain evaluation for the trans-Alaska pipeline project\nbook chapter\n\nStroudsburg\nDowden, Hutchinson, and Ross\n\np. 55-76\n\n\nCoates, D.R.\n2011\nGeomorphology and engineering\ndocument\n\n\n\n\npaper\n\n\n\n1976\n\n\nground condition\n\nKreig and Reger, 1976\nContains terrain evaluation for trans-Alaska oil pipeline\n\n\n\n\nKreig, R.A.\nReger, R.D.\n1982\nAir-photo analysis and summary of land-form soil properties along the route of the Trans-Alaska Pipeline System\ndocument\n\nGeologic Report\nGR-66\n\n\nFairbanks AK\nAlaska Division of Geological & Geophysical Surveys\n\n149 p.\n\n\npaper\n\n\n\n1982\n\n\nground condition\n\nKreig and Reger, 1982\nContains air-photo analysis and land form soil properties for trans-Alaska oil pipeline\n\n\n\n\nLea, P.D.\nWaythomas, C.F.\n1990\nLate-Pleistocene eolian sand sheets in Alaska\njournal article\n\nQuaternary Research\nv. 34, no. 3\n\np. 260-281\n\n\npaper\n\n\n\n1990\n\n\nground condition\n\nLea and Waythomas, 1990\nInformation about sand sheets in Alaska\n\n\n\n\nPewe, T.L.\n1975\nQuaternary geology of Alaska\ndocument\n\nProfessional Paper\nP 835\n\n\nUnited States\nU.S. Geological Survey\n\n145 p.\n\n\npaper\n\n\n\n1975\n\n\nground condition\n\nPewe, 1975\nQuaternary geology of Alaska\n\n\n\n\nPewe, T.L.\nReger, R.D.\n1983\nMiddle Tanana River valley\nbook chapter\n\nGuidebook\nGuidebook 1\n\n\nFairbanks AK\nAlaska Division of Geological & Geophysical Surveys\n\nin Pewe, T.L., and Reger, R.D., eds., Guidebook to permafrost and Quaternary geology along the Richardson and Glenn Highways between Fairbanks and Anchorage, Alaska, p. 5-45\n\n\nPewe, T.L., ed.\nReger, R.D., ed.\n1983\nGuidebook to permafrost and Quaternary geology along the Richardson and Glenn Highways between Fairbanks and Anchorage, Alaska\ndocument\n\nGuidebook\nGuidebook 1\n\n\nFairbanks AK\nAlaska Division of Geological & Geophysical Surveys\n\n\n\n\n\npaper\n\n\n\n1983\n\n\nground condition\n\nPewe and Reger, 1983\nContains information about Quaternary geology of Tanana Valley\n\n\n\n\nRichter, D.H.\n1976\nGeologic map of the Nabesna Quadrangle, Alaska\nmap\n\nU.S. Geological Survey Miscellaneous Investigations Map\nI-932\n\n1 plate, scale 1:250,000\n\n\npaper\n\n\n\n1976\n\n\nground condition\n\nRichter, 1976\nGeologic map of the Nabesna Quadrangle\n\n\n\n\nWahrhaftig, Clyde\n1965\nPhysiographic divisions of Alaska\nmaps\n52 p., 6 sheets, various scales\n\n\npaper\n\n\n\n1965\n\n\nobserved\n\nWahrhaftig, 1965\nMaps showing physiographic divisions of Alaska\n\n\n\n\nWallace, R.E.\n1948\nCave-in lakes in the Nabesna, Chisana, and Tanana River valleys, eastern Alaska\njournal article\n\nJournal of Geology\nv. 56, no. 3\n\np. 171-181\n\n\npaper\n\n\n\n1948\n\n\nground condition\n\nWallace, 1948\nInformation about cave-in lakes in the Nabesna, Chisanan, and Tanana River valleys.\n\n\n\n\nWeber, F.R.\n1986\nGlacial geology of the Yukon-Tanana Upland\nbook chapter\n\nAnchorage, Alaska\nAlaska Geological Society\n\np. 79-98.\n\n\nHamilton, T.D., ed.\nReed, K.M., ed.\nThorson, R.M., ed.\n1986\nGlaciation in Alaska; The geologic record\nbook chapter\n\nAnchorage, Alaska\nAlaska Geological Society\n\np. 79-98.\n\n\n\n\npaper\n\n\n\n1986\n\n\nground condition\n\nWeber, 1986\nGlacial geology of the Yukon-Tanana Upland\n\n\n\n\nU.S. Geological Survey\nUnknown\nAlaska High Altitude Photography Program\nprints and digital files\n\nUnknown\nU.S. Geological Survey\n\n\n\n65000\nphotographic print\n\n\n\n\n1981\n\n\n1978\n\n\n\nground condition\n\nAHAP Aerial Photography, 1978 and 1981\nAerial photography used in map unit interpretation\n\n\nAerial photograph interpretation - Stereo pairs of ~1:65000-scale, false-color infrared aerial photographs taken in July 1978 and August 1981, as well as data from published and unpublished mapping of the target region and adjacent regions, were used to initially interpret and map the surficial geology. Unit boundaries were drawn by hand onto acetate overlays, using a magnifying stereoscope. Overlays were registered to aerial photos using tick marks on the photos.\nAHAP Aerial Photography, 1978 and 1981\nCarter and Galloway, 1978\nFoster, 1970\nKreig and Reger, 1976\nKreig and Reger, 1982\nPewe and Reger, 1983\n2009\n\n\nDigital cartography - The acetate overlays were individually scanned and orthorectified, using Orthomapper, v. 3.6, and georeferenced. The air-photos were orthorectified, photomosaiced and georeferenced. Map unit boundaries were digitized on-screen into ArcGIS from the orthorectified overlays at a scale more detailed than 1:63,360, using a combination of a USGS topographic 1:63.360 map layer and the orthophotomosaic layer to verify the position of the lines. Surficial geology map polygons and lines were then edited and attributed using ArcMap 9+\nUSGS Tanacross A-1, 1952 - minor revisions 1971\nUSGS Tanacross A-2, 1955 - minor revisions 1972\nUSGS Tanacross A-3, 1948 - minor revisions 1978\nUSGS Tanacross B-3, 1949 - minor revisions 1964\nUSGS Nabesna C-1, 1955 - minor revisions 1963\nUSGS Nabesna D-1, 1952 - minor revisions 1967\nUSGS Nabesna D-2, 1955 - minor revisions 1978\nUSGS Nabesna D-3, 1955 - minor revisions 2000\n2009\n\n\nFieldwork - Reconnaissance field work was done in the summer of 2008 during which observations were recorded for use during aerial photograph interpretation. In July-August 2009, field work to verify aerial photograph interpretations was performed. In addition to observations from ground and helicopter traverses, several soil pits were dug using shovels to maximum depth of 1.3 meters to observe soil profiles, and observations of exposures along river banks, highway cuts, and trenches dug as part of active fault studies were recorded.\nCarter and Galloway, 1978\nDuk-Rodkin and others, 2004\nEaston and others, 2009\nFoster, 1970\nFernald, 1965a\nFernald, 1965b\nHamilton, 1994\nKreig and Reger, 1982\nLea and Waythomas, 1990\nPewe, 1975\nPewe and Reger, 1983\nRichter, 1976\nWahrhaftig, 1965\nWallace, 1948\nWeber, 1986\n2009\n\n\nMap compilation - The surficial geologic map was compiled using field notes from fieldwork process step (above), all known geologic data from previous work in the general region, and additional aerial photograph interpretation. Changes to unit boundaries, after field work, were completed in ArcGIS 9 and ArcGIS 10. The final map layout was created using ArcGIS 10.\n2012\n\n\nRadiocarbon data - radiocarbon samples were collected during field work in the summer of 2009 by Dick Reger and Trent Hubbard. Samples were sent to Beta Analytic for analysis in late 2009.\n2009\n\n\nMetadata creation - Metadata were assembled by P.E. Gallagher to FGDC Standards using Metavist 1.2, DGGS 7.05, a data entry program for FGDC metadata with XML output.\n2012\n\n\n\n\nVector\n\n\n\n\n\nUniversal Transverse Mercator\n\n7\n\n0.999600\n-141\n0\n500000.000000\n0\n\n\n\n\ncoordinate pair\n\n0.000001\n0.000001\n\nmeters\nsurf-geology\n\n\n\n\nUniversal Transverse Mercator\n\n7\n\n0.999600\n-141\n0\n500000.000000\n0\n\n\n\n\ncoordinate pair\n\n0.000001\n0.000001\n\nmeters\nborder\n\n\n\n\nUniversal Transverse Mercator\n\n7\n\n0.999600\n-141\n0\n500000.000000\n0\n\n\n\n\ncoordinate pair\n\n0.000001\n0.000001\n\nmeters\nlocalities\n\n\n\nNorth American Datum of 1927\nClarke 1866\n6378206.4\n294.9786982\n\n\n\n\n\n\npir2012-1a-surf-geology\nSurficial map unit polygons. Boundaries of surficial unit polygons are inferred. Also includes lake polygons.\nAlaska Division of Geological & Geophysical Surveys\nsurf-geology\n\n\nmap_unit\nSurficial map unit label shown on map and described in text. Note that "?" indicates questionable identification.\nAlaska Division of Geological & Geophysical Surveys\n\n\nPIR2012-1A, Description of Surficial-Geologic Map Units\nReger, R.D., Hubbard, T.D., and Gallagher. P.E., Surficial geology of Alaska Highway corridor, Tetlin Junction to Canada border, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2012-1A, 25 p., see Sheet 1 and Sheet 2\n\n\n\n\nlake\nPolygon unit is a lake\nThis report\n\n\n\n\n\n\npir2012-1a-border\npolygon outlining boundary of map area\nAlaska Division of Geological & Geophysical Surveys\nborder\n\n\n\n\npir2012-1a-localities\nPoints identifying field localities discussed in this report (PIR 2012-1A)\nAlaska Division of Geological & Geophysical Surveys\nlocalities\n\n\nLabel\nLabel used to identify field localities\nAlaska Division of Geological & Geophysical Surveys\n\nLabel: F indicates Fossil locality, M indicates soil moisture locality, RC indicates radiocarbon locality, SP indicates soil pit locality,T indicates tephra locality, and V indicates ventifact sites\n\n\n\nType\nType of locality\nAlaska Division of Geological & Geophysical Surveys\n\n\nFossil locality\nFossil localities discussed in text\nThis report\n\n\n\n\nSoil moisture locality\nSoil moisture localities discussed in text\nThis report\n\n\n\n\nRadiocarbon locality\nRadiocarbon localities discussed in text\nThis report\n\n\n\n\nSoil pit\nSoil pits discussed in text\nThis report\n\n\n\n\nTephra locality\nTephra locality discussed in text\nThis report\n\n\n\n\nVentifact site\nVentifact sites discussed in text\nThis report\n\n\n\n\n\n\n\n\n\nAlaska Division of Geological & Geophysical Surveys\n\n\nmailing and physical\n
3354 College Road
\nFairbanks\nAK\n99709-3707\nUSA\n\n(907)451-5020\n(907)451-5050\ndggspubs@alaska.gov\n8 am to 4:30 pm, Monday through Friday, except State holidays\nPlease 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.\n\n\nPIR 2012-1A\nThe 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 requestor or anyone else exceed the fee paid for the electronic service or product.\n\nDGGS 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. Turnaround 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 amount.\nContact DGGS for current pricing\n\n\n\n\nSHP\n\n\n\n\n\nhttp://dx.doi.org/10.14509/23443\n\n\n\n\n\nFree download\n\n\n\n20120717\n\n\n\nMetadata manager\n\n\nmailing and physical\n
3354 College Road
\nFairbanks\nAK\n99709-3707\nUSA\n\n(907)451-5020\n\n\nFGDC Content Standard for Digital Geospatial Metadata\nFGDC-STD-001-1998\nIf the user has modified the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by the Alaska Department of Natural Resources or Division of Geological & Geophysical Surveys.\n\nhttp://www.dggs.alaska.gov/metadata/dggs.ext\ndggs metadata extensions\n\n\n\n","source_transform":null,"status":"error"}