{"action":"create","ckan_id":null,"date_created":"Wed, 04 Feb 2026 04:49:07 GMT","date_finished":null,"harvest_job_id":"a0a7eb01-a1ed-487e-834d-594fece9ed93","harvest_source_id":"f4c7bbab-c7ef-4277-a7d3-c25b78854814","id":"10f3d558-75df-46e3-ae49-c25bf557a6ed","identifier":"https://dggs.alaska.gov/webpubs/metadata/PIR2019-1.xml","parent_identifier":null,"source_hash":"d70c752bb0921a84912b79de218ad0b22d13c6cf7efac1526413d1949ca901ba","source_raw":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><metadata><idinfo><citation><citeinfo><origin>Werdon, M.B.</origin><origin>Solie, D.N.</origin><origin>Newberry, R.J.</origin><origin>Freeman, L.K.</origin><origin>Elliott, B.A.</origin><origin>Lessard, R.R.</origin><pubdate>2019</pubdate><title>Bedrock-geologic map, Alaska Highway corridor, Little Gerstle River to Dot Lake, Alaska</title><geoform>geodatabase</geoform><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2019-1</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>12 p., 1 sheet, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/30036</onlink></citeinfo></citation><descript><abstract>Preliminary Interpretive Report 2019-1, Bedrock-geologic map, Alaska Highway corridor, Little Gerstle River to Dot Lake, Alaska, shows the distribution of bedrock units along the Alaska Highway in parts of the Mt. Hayes C-1, C-2, D-1, and D-2 quadrangles. It is the westernmost of three bedrock-geologic maps along the Alaska Highway corridor. It is part of a multi-year project conducted by the Alaska Division of Geological &amp; Geophysical Surveys (DGGS) between 2006 and 2013. The project focused on investigating and reporting the geology and geologic hazards of the corridor. Bedrock units were mapped and structural elements were measured in the field; where bedrock units are covered by surficial units and vegetation, units were interpreted using airborne-magnetic and electromagnetic surveys published by DGGS in 2006. Rock names were assigned based on field and petrographic observations, modal-mineral percentages, and interpretations of geochemical data. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/30036.</abstract><purpose>The Alaska Highway corridor project focused on investigating and reporting the geology and geologic hazards of the highway corridor.</purpose><supplinf>This geodatabase is organized according to the AK GeMS mapping schema Hendricks, M.D., Ekberg, P.G., Athey, J.E., Wyatt, W.C., Willingham, A.L., and Naibert, T.J., 2021, AK GeMS data dictionary: A description of the Alaska geologic mapping schema: Alaska Division of Geological &amp; Geophysical Surveys Miscellaneous Publication 170, 10 p. https://doi.org/10.14509/30669. The distribution package includes ESRI fonts and style files, along with usage instructions. Further documentation of the symbology is provided by Ekberg, P.G., Hendricks, M.D., and Athey, J.E., 2021, AK GeMS symbology: A description of the AK GeMS style file: Alaska Division of Geological &amp; Geophysical Surveys Miscellaneous Publication 169, 7 p. https://doi.org/10.14509/30584</supplinf></descript><timeperd><timeinfo><sngdate><caldate>2013</caldate></sngdate></timeinfo><current>ground condition</current></timeperd><status><progress>complete</progress><update>None planned</update></status><spdom><bounding><westbc>-145.027470</westbc><eastbc>-143.955187</eastbc><northbc>63.938264</northbc><southbc>63.500060</southbc></bounding></spdom><keywords><theme><themekt>ISO 19115 Topic Category</themekt><themekey>geoscientificInformation</themekey></theme><theme><themekt>Alaska Division of Geological &amp; Geophysical Surveys</themekt><themekey>Allanite</themekey><themekey>Amphibolite</themekey><themekey>Andalusite</themekey><themekey>Apatite</themekey><themekey>Basalt</themekey><themekey>Batholith</themekey><themekey>Bedrock</themekey><themekey>Calcite</themekey><themekey>Chlorite</themekey><themekey>Chromium</themekey><themekey>Clay</themekey><themekey>Contact</themekey><themekey>Correlation</themekey><themekey>Epidote</themekey><themekey>Exhumation</themekey><themekey>Exploration</themekey><themekey>Faulting</themekey><themekey>Faults</themekey><themekey>Feldspar</themekey><themekey>Folding</themekey><themekey>Garnet</themekey><themekey>Geochemistry</themekey><themekey>Geochronology</themekey><themekey>Geologic</themekey><themekey>Geologic Map</themekey><themekey>Geology</themekey><themekey>Gneiss</themekey><themekey>Gold</themekey><themekey>Granite</themekey><themekey>Granodiorite</themekey><themekey>Graphite</themekey><themekey>Hematite</themekey><themekey>Hornblende</themekey><themekey>Hornfels</themekey><themekey>Igneous</themekey><themekey>Interpretation</themekey><themekey>Iron</themekey><themekey>Lamprophyre</themekey><themekey>Magnetite</themekey><themekey>Marble</themekey><themekey>Metamorphic</themekey><themekey>Metamorphism</themekey><themekey>Mica</themekey><themekey>Muscovite</themekey><themekey>Orthogneiss</themekey><themekey>Pegmatite</themekey><themekey>Petrographic</themekey><themekey>Petrology</themekey><themekey>Plagioclase</themekey><themekey>Plutonic</themekey><themekey>Plutons</themekey><themekey>Pyrite</themekey><themekey>Quartz</themekey><themekey>Regional</themekey><themekey>Rocks</themekey><themekey>Schist</themekey><themekey>Silica</themekey><themekey>Tourmaline</themekey></theme><place><placekt>Alaska Division of Geological &amp; Geophysical Surveys</placekt><placekey>Alaska Highway Corridor</placekey><placekey>Bear Creek</placekey><placekey>Berry Creek</placekey><placekey>Black Lake</placekey><placekey>Chief Creek</placekey><placekey>Craig Lake</placekey><placekey>Delta River Mining District</placekey><placekey>Donna Lake</placekey><placekey>Dot Lake</placekey><placekey>Dot Lake Village</placekey><placekey>Dry Creek</placekey><placekey>George Creek</placekey><placekey>Gerstle River</placekey><placekey>Goodpaster Mining District</placekey><placekey>Healy Lake</placekey><placekey>Horn Mountain</placekey><placekey>Independent Ridge</placekey><placekey>Johnson River</placekey><placekey>Johnson Slough</placekey><placekey>Lake George</placekey><placekey>Lisa Lake</placekey><placekey>Little Donna Lake</placekey><placekey>Little Gerstle River</placekey><placekey>Macomb Plateau</placekey><placekey>Moosehead Lake</placekey><placekey>Plateau Lake</placekey><placekey>Sam Creek</placekey><placekey>Sand Creek</placekey><placekey>Sand Lake</placekey><placekey>Sears Creek</placekey><placekey>South Johnson Lake</placekey><placekey>Tanana River</placekey><placekey>Tok Mining District</placekey><placekey>Twelvemile Lake</placekey></place><stratum><stratkt>Alaska Division of Geological &amp; Geophysical Surveys</stratkt><stratkey>Lake George Assemblage</stratkey><stratkey>Nenana Gravel</stratkey></stratum><temporal><tempkt>Walker, J.D., Geissman, J.W., Bowring, S.A, and Babcock, L.E., comp., 2012, Geologic Time Scale v. 4.0: Geological Society of America</tempkt><tempkey>Cretaceous</tempkey><tempkey>Devonian</tempkey><tempkey>Miocene</tempkey><tempkey>Mississippian</tempkey><tempkey>Pliocene</tempkey><tempkey>Tertiary</tempkey></temporal></keywords><accconst>This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological &amp; Geophysical Surveys (see contact information below).</accconst><useconst>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 &amp; 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.</useconst><ptcontac><cntinfo><cntorgp><cntorg>Alaska Division of Geological &amp; Geophysical Surveys</cntorg></cntorgp><cntpos>Metadata Manager</cntpos><cntaddr><addrtype>mailing and physical</addrtype><address>3354 College Road</address><city>Fairbanks</city><state>AK</state><postal>99709-3707</postal><country>USA</country></cntaddr><cntvoice>(907)451-5020</cntvoice><cntfax>(907)451-5050</cntfax><cntemail>dggspubs@alaska.gov</cntemail><hours>8 am to 4:30 pm, Monday through Friday, except State holidays</hours><cntinst>Please view our website (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.</cntinst></cntinfo></ptcontac><datacred>This research was supported by State of Alaska FY06, FY07, and FY09 Capital Improvement Project (CIP) funding. Partial funding for geologic mapping in the Mt. Hayes C-1, C-2, D-1, and D-2 quadrangles was also provided by the U.S. Geological Survey, National Cooperative Geologic Mapping Program, under STATEMAP award number 07HQAG0076. The authors thank Jamey V. Jones, Cynthia Dusel-Bacon, and Robert F. Swenson for their thoughtful reviews. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the State of Alaska or the United States government. Geologic map conversion to the GeMS standard was funded by the USGS National Geological and Geophysical Data Preservation Program under award number G20AP00103 and the State of Alaska General Fund.</datacred><crossref><citeinfo><origin>Hubbard, T.D.</origin><origin>Reger, R.D.</origin><origin>Gallagher, P.E.</origin><pubdate>2011</pubdate><title>Using lidar to refine geologic mapping and interpretations in the upper Tanana River valley, central Alaska (poster): Geological Society of America Annual Meeting, Minneapolis, MN, October 9-12, 2011, Abstracts with Programs, v. 43, no. 5, p. 623</title><serinfo><sername>Poster and Presentation</sername><issue>Hubbard, T.D. and others, 2011</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>1 sheet</othercit><onlink>https://doi.org/10.14509/23065</onlink></citeinfo></crossref><crossref><citeinfo><origin>Hubbard, T.D.</origin><origin>Reger, R.D.</origin><origin>Gallagher, P.E.</origin><pubdate>2013</pubdate><title>Engineering - geologic map of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2012-1B</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>2 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/24624</onlink></citeinfo></crossref><crossref><citeinfo><origin>Hubbard, T.D.</origin><origin>Reger, R.D.</origin><pubdate>2010</pubdate><title>Alaska GeoSurvey News - Evidence for late Wisconsinan outburst floods in the Tok-Tanacross basin, upper Tanana River valley, east-central Alaska</title><serinfo><sername>Newsletter</sername><issue>NL 2010-1</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>9 p</othercit><onlink>https://doi.org/10.14509/20541</onlink></citeinfo></crossref><crossref><citeinfo><origin>Hubbard, T.D.</origin><origin>Reger, R.D.</origin><pubdate>2010</pubdate><title>Engineering - geologic map of the Alaska Highway corridor, Robertson River to Tetlin Junction, Alaska</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2009-6B</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>4 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/19742</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Hubbard, T.D.</origin><origin>Carver, G.A.</origin><pubdate>2011</pubdate><title>Surficial geology of Alaska Highway corridor, Robertson River to Tetlin Junction, Alaska</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2009-6A</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>53 p., 4 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/19741</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Hubbard, T.D.</origin><origin>Gallagher, P.E.</origin><pubdate>2012</pubdate><title>Reconnaissance interpretation of 1978-1981 permafrost, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2012-1C</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>27 p., 2 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/23444</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Hubbard, T.D.</origin><origin>Gallagher, P.E.</origin><pubdate>2012</pubdate><title>Surficial geology of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2012-1A</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>25 p., 2 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/23443</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Hubbard, T.D.</origin><origin>Koehler, R.D.</origin><pubdate>2021</pubdate><title>Surficial geology and geohazards in the Alaska Highway corridor, Alaska</title><serinfo><sername>Professional Report</sername><issue>PR 124</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>149 p., 18 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/29701</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Stevens, D.S.P.</origin><origin>Solie, D.N.</origin><pubdate>2008</pubdate><title>Evidence of multiple late Pleistocene outburst floods, upper Tanana River valley, east-central Alaska (presentation): Geological Society of America Cordilleran Section and Rocky Mountain Section Joint Meeting, Las Vegas, Nevada, March 19-21, 2008</title><serinfo><sername>Poster and Presentation</sername><issue>Reger, R.D. and others, 2008</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>30 p</othercit><onlink>https://doi.org/10.14509/21844</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Stevens, D.S.P.</origin><origin>Solie, D.N.</origin><pubdate>2008</pubdate><title>Surficial-geologic map, Delta Junction to Dot Lake, Alaska Highway corridor</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2008-3A</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>48 p., 2 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/17961</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Hubbard, T.D.</origin><pubdate>2009</pubdate><title>Evidence for late Wisconsinan outburst floods in the Tok-Tanacross basin, upper Tanana River valley, east-central Alaska (poster): Geological Society of America Annual Meeting, Portland, Oregon, October 21, 2009.</title><serinfo><sername>Poster and Presentation</sername><issue>Reger, R.D. and Hubbard, T.D., 2009</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>1 sheet</othercit><onlink>https://doi.org/10.14509/21847</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Hubbard, T.D.</origin><pubdate>2010</pubdate><title>Reconnaissance interpretation of 1978-1983 permafrost, Alaska Highway corridor, Robertson River to Tetlin Junction, Alaska</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2009-6C</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>13 p., 4 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/19743</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Solie, D.N.</origin><pubdate>2008</pubdate><title>Engineering - geologic map, Alaska Highway corridor, Delta Junction to Dot Lake, Alaska</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2008-3B</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>2 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/17981</onlink></citeinfo></crossref><crossref><citeinfo><origin>Reger, R.D.</origin><origin>Solie, D.N.</origin><pubdate>2008</pubdate><title>Reconnaissance interpretation of permafrost, Alaska Highway corridor, Delta Junction to Dot Lake, Alaska</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2008-3C</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>10 p., 2 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/17621</onlink></citeinfo></crossref><crossref><citeinfo><origin>Solie, D.N.</origin><origin>Werdon, M.B.</origin><origin>Freeman, L.K.</origin><origin>Newberry, R.J.</origin><origin>Szumigala, D.J.</origin><origin>Speeter, G.G.</origin><origin>Elliott, B.A.</origin><pubdate>2019</pubdate><title>Bedrock-geologic map, Alaska Highway corridor, Tetlin Junction, Alaska to Canada border</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2019-3</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>16 p., 2 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/30038</onlink></citeinfo></crossref><crossref><citeinfo><origin>Solie, D.N.</origin><origin>Burns, L.E.</origin><pubdate>2006</pubdate><title>Geology, geophysics, and geohazards along the Alaska Highway corridor, a project of the Alaska Division of Geological &amp; Geophysical Surveys (poster): Yukon Geoscience Annual Convention, Whitehorse, November, 2006</title><serinfo><sername>Poster and Presentation</sername><issue>Solie, D.N. and Burns, L.E., 2006</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>1 sheet</othercit><onlink>https://doi.org/10.14509/21842</onlink></citeinfo></crossref><crossref><citeinfo><origin>Solie, D.N.</origin><origin>Werdon, M.B.</origin><pubdate>2014</pubdate><title>Geologic notes on Granite Mountain, Mount Hayes D-3 Quadrangle, Alaska</title><serinfo><sername>Raw Data File</sername><issue>RDF 2014-23</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>4 p</othercit><onlink>https://doi.org/10.14509/29141</onlink></citeinfo></crossref><crossref><citeinfo><origin>Stewart, A.K.</origin><origin>Heinrich, C.E.</origin><origin>Hubbard, T.D.</origin><pubdate>2017</pubdate><title>Dendrogeomorphic evidence of frequent mass movement using reaction wood in black spruce: Alaska Highway milepost 1267, Northway Junction, Alaska</title><serinfo><sername>Report of Investigation</sername><issue>RI 2017-7</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>18 p</othercit><onlink>https://doi.org/10.14509/29734</onlink></citeinfo></crossref><crossref><citeinfo><origin>Werdon, M.B.</origin><origin>Solie, D.N.</origin><origin>Andrew, J.E.</origin><origin>Freeman, L.K.</origin><origin>Newberry, R.J.</origin><origin>Szumigala, D.J.</origin><origin>Elliott, B.A.</origin><pubdate>2019</pubdate><title>Bedrock-geologic map, Alaska Highway corridor, Dot Lake to Tetlin Junction, Alaska</title><serinfo><sername>Preliminary Interpretive Report</sername><issue>PIR 2019-2</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>14 p., 2 sheets, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/30037</onlink></citeinfo></crossref></idinfo><dataqual><attracc><attraccr>Certainty in attribute interpretation varies throughout the map and is scale dependant. Attribute fields within each feature class record the authors' degree of confidence in the existence or identity of applicable features.</attraccr></attracc><logic>All polygon features were topologically validated according to specifications of the AK GeMS geologic mapping schema.</logic><complete>This publication is released as a DGGS Preliminary Interpretive Report (PIR). A PIR is intended to provide timely release maps and reports with a preliminary interpretation of geology or analytical data. One or two people familiar with the geologic problem have reviewed this publication for technical content.</complete><posacc><horizpa><horizpar>Certainty in feature boundaries or location varies throughout the map. Data fields within each feature class and the accompanying orientation and location confidence lookup tables record the authors' degree of confidence in the location of applicable features.</horizpar></horizpa></posacc><lineage><srcinfo><srccite><citeinfo><origin>Athey, J.E.</origin><origin>Werdon, M.B.</origin><origin>Szumigala, D.J.</origin><origin>Newberry, R.J.</origin><origin>Johnson, M.R.</origin><pubdate>2002</pubdate><title>Major-oxide, minor-oxide, trace-element, and geochemical data from the rocks collected in the Big Delta Quadrangle, Alaska in 2001</title><serinfo><sername>Raw Data File</sername><issue>RDF 2002-3</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>18 p., 2 sheets, scale 1:150,000</othercit><onlink>https://doi.org/10.14509/2857</onlink></citeinfo></srccite><srcscale>150000</srcscale><typesrc>paper</typesrc><srctime><timeinfo><sngdate><caldate>2002</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>Athey, J.E. and others, 2002</srccitea><srccontr>Bedrock geologic mapping</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>Burns, L.E.</origin><origin>Barefoot, J.D.</origin><origin>Graham, G.R.C.</origin><origin>Naibert, T.J.</origin><origin>Geoterrex-Dighem</origin><origin>Stevens Exploration Management Corp.</origin><pubdate>2019</pubdate><title>Salcha River-Pogo electromagnetic, magnetic, and radiometric airborne geophysical survey data compilation</title><serinfo><sername>Geophysical Report</sername><issue>GPR 2019-8</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>22 p</othercit><onlink>https://doi.org/10.14509/30179</onlink></citeinfo></srccite><typesrc>paper</typesrc><srctime><timeinfo><sngdate><caldate>2019</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>Burns, L.E. and others, 2019</srccitea><srccontr>Bedrock geologic mapping</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>Ekberg, P.G.</origin><origin>Hendricks, M.D.</origin><origin>Athey, J.E.</origin><pubdate>2021</pubdate><title>AK GeMS symbology: A description of the AK GeMS style file</title><serinfo><sername>Miscellaneous Publication</sername><issue>MP 169</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>7 p</othercit><onlink>https://doi.org/10.14509/30584</onlink></citeinfo></srccite><typesrc>paper</typesrc><srctime><timeinfo><sngdate><caldate>2021</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>Ekberg, P.G. and others, 2021</srccitea><srccontr>GIS analysis and digital cartography</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>Hendricks, M.D.</origin><origin>Ekberg, P.G.</origin><origin>Athey, J.E.</origin><origin>Wyatt, W.C.</origin><origin>Willingham, A.L.</origin><origin>Naibert, T.J.</origin><pubdate>2021</pubdate><title>AK GeMS data dictionary: A description of the Alaska geologic mapping schema</title><serinfo><sername>Miscellaneous Publication</sername><issue>MP 170</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>10 p</othercit><onlink>https://doi.org/10.14509/30669</onlink></citeinfo></srccite><typesrc>paper</typesrc><srctime><timeinfo><sngdate><caldate>2021</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>Hendricks, M.D. and others, 2021</srccitea><srccontr>GIS analysis and digital cartography</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>Newberry, R.J.</origin><pubdate>2012</pubdate><title>Whole-rock and trace element analyses of two amphibolite outcrop samples from the 2001 DGGS Salcha River-Pogo project, Big Delta Quadrangle, Alaska</title><serinfo><sername>Geologic Materials Center Data Report</sername><issue>GMC 411</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>1 p</othercit><onlink>https://doi.org/10.14509/24664</onlink></citeinfo></srccite><typesrc>paper</typesrc><srctime><timeinfo><sngdate><caldate>2012</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>Newberry, R.J., 2012</srccitea><srccontr>Bedrock geologic mapping</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>Reger, R.D.</origin><origin>Pewe, T.L.</origin><pubdate>2002</pubdate><title>Geologic map of the Big Delta A-4 Quadrangle, Alaska</title><serinfo><sername>Report of Investigation</sername><issue>RI 2002-2</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>1 sheet, scale 1:63,360</othercit><onlink>https://doi.org/10.14509/2869</onlink></citeinfo></srccite><srcscale>63360</srcscale><typesrc>paper</typesrc><srctime><timeinfo><sngdate><caldate>2002</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>Reger, R.D. and Pewe, T.L., 2002</srccitea><srccontr>Bedrock geologic mapping</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>Werdon, M.B.</origin><origin>Athey, J.E.</origin><origin>Szumigala, D.J.</origin><origin>Newberry, R.J.</origin><origin>Grady, J.C.</origin><origin>Munly, W.C.</origin><pubdate>2001</pubdate><title>Major-oxide, minor-oxide, trace-element, and geochemical data from rocks collected in the Salcha River-Pogo area in 2000, Big Delta and northwestern Eagle quadrangles, Alaska</title><serinfo><sername>Raw Data File</sername><issue>RDF 2001-1</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>19 p., 1 sheet, scale 1:250,000</othercit><onlink>https://doi.org/10.14509/2661</onlink></citeinfo></srccite><srcscale>250000</srcscale><typesrc>paper</typesrc><srctime><timeinfo><sngdate><caldate>2001</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>Werdon, M.B. and others, 2001</srccitea><srccontr>Bedrock geologic mapping</srccontr></srcinfo><srcinfo><srccite><citeinfo><origin>Werdon, M.B.</origin><origin>Newberry, R.J.</origin><origin>Athey, J.E.</origin><origin>Szumigala, D.J.</origin><origin>Freeman, L.K.</origin><origin>Lessard, R.R.</origin><origin>Hendry, K.R.</origin><origin>Wiltse, M.A.</origin><pubdate>2003</pubdate><title>Major-oxide, minor-oxide, trace-element, and geochemical data from rocks collected in the Big Delta Quadrangle, Alaska in 2002</title><serinfo><sername>Raw Data File</sername><issue>RDF 2003-2</issue></serinfo><pubinfo><pubplace>Fairbanks, Alaska, United States</pubplace><publish>Alaska Division of Geological &amp; Geophysical Surveys</publish></pubinfo><othercit>45 p</othercit><onlink>https://doi.org/10.14509/2997</onlink></citeinfo></srccite><typesrc>paper</typesrc><srctime><timeinfo><sngdate><caldate>2003</caldate></sngdate></timeinfo><srccurr>publication date</srccurr></srctime><srccitea>Werdon, M.B. and others, 2003</srccitea><srccontr>Bedrock geologic mapping</srccontr></srcinfo><procstep><procdesc>Bedrock geologic mapping - Bedrock field investigations for the Alaska Highway corridor project were conducted over several summers between 2006 and 2013. Bedrock units were mapped and structural elements were measured in the field. Where surficial units and vegetation cover bedrock units, units were interpreted using airborne-magnetic and electromagnetic surveys published by DGGS in 2006. Rock names were assigned based on field and petrographic observations, modal-mineral percentages, and interpretations of geochemical data. Age determination and interpretation of cross-cutting relationships where facilitated by 40Ar/39Ar, Zircon U-Pb, and apatite fission-track geochronologic analysis.</procdesc><srcused>Athey, J.E. and others, 2002</srcused><srcused>Burns, L.E. and others, 2019</srcused><srcused>Newberry, R.J., 2012</srcused><srcused>Reger, R.D. and Pewe, T.L., 2002</srcused><srcused>Werdon, M.B. and others, 2001</srcused><srcused>Werdon, M.B. and others, 2003</srcused><procdate>2013</procdate></procstep><procstep><procdesc>Geologic map compilation - Data for the digital geologic map was digitized from a Mylar geologic field map compilation. This compilation was done on a one to one scale, stable Mylar of the USGS topographic base for each of the 1:63,360 scale USGS topographic bases included in the map area. The report and accompanying data were evaluated by project staff and peer reviewers for readability and logical consistency with related information sources.</procdesc><procdate>2019</procdate></procstep><procstep><procdesc>GIS analysis and digital cartography - The geologic and geographic features portrayed in this data distribution package were organized and attributed according to the AK GeMS geologic mapping schema.</procdesc><srcused>Ekberg, P.G. and others, 2021</srcused><srcused>Hendricks, M.D. and others, 2021</srcused><procdate>2021</procdate></procstep></lineage></dataqual><spdoinfo><direct>vector</direct></spdoinfo><spref><horizsys><planar><gridsys><gridsysn>Universal Transverse Mercator</gridsysn><utm><utmzone>6</utmzone><transmer><sfctrmer>0.999600</sfctrmer><longcm>-147</longcm><latprjo>0</latprjo><feast>500000.000000</feast><fnorth>0</fnorth></transmer></utm></gridsys><planci><plance>coordinate pair</plance><coordrep><absres>.00000001</absres><ordres>.00000001</ordres></coordrep><plandu>Meters</plandu></planci></planar><geodetic><horizdn>NAD27</horizdn><ellips>Clarke 1866</ellips><semiaxis>6378206.40000000037</semiaxis><denflat>294.978698199999997</denflat></geodetic></horizsys></spref><eainfo><detailed><enttyp><enttypl>ak_hwy_bedrock_segment_1_ak_gems_db_pkg</enttypl><enttypd>Geodatabase, layer files, style files, and fonts</enttypd><enttypds>Alaska Division of Geological &amp;amp; Geophysical Surveys</enttypds><ealname>ak_hwy_bedrock_segment_1_ak_gems_db_pkg</ealname></enttyp></detailed><detailed><enttyp><enttypl>ak_hwy_bedrock_segment_1_fed_gems_db_pkg</enttypl><enttypd>Geodatabase, layer files, style files, and fonts</enttypd><enttypds>Alaska Division of Geological &amp;amp; Geophysical Surveys</enttypds><ealname>ak_hwy_bedrock_segment_1_fed_gems_db_pkg</ealname></enttyp></detailed><detailed><enttyp><enttypl>ak_hwy_bedrock_segment_1_fed_gems_shapefile_pkg</enttypl><enttypd>Shapefiles and open data files</enttypd><enttypds>Alaska Division of Geological &amp;amp; Geophysical Surveys</enttypds><ealname>ak_hwy_bedrock_segment_1_fed_gems_shapefile_pkg</ealname></enttyp></detailed></eainfo><distinfo><distrib><cntinfo><cntorgp><cntorg>Alaska Division of Geological &amp; Geophysical Surveys</cntorg></cntorgp><cntpos>Metadata Manager</cntpos><cntaddr><addrtype>mailing and physical</addrtype><address>3354 College Road</address><city>Fairbanks</city><state>AK</state><postal>99709-3707</postal><country>USA</country></cntaddr><cntvoice>(907)451-5020</cntvoice><cntfax>(907)451-5050</cntfax><cntemail>dggspubs@alaska.gov</cntemail><hours>8 am to 4:30 pm, Monday through Friday, except State holidays</hours><cntinst>Please view our website (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.</cntinst></cntinfo></distrib><resdesc>PIR 2019-1</resdesc><distliab>The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.</distliab><stdorder><nondig>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. 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.</nondig><fees>Contact DGGS for current pricing</fees></stdorder><stdorder><digform><digtinfo><formname>geodatabase</formname></digtinfo><digtopt><onlinopt><computer><networka><networkr>https://doi.org/10.14509/30036</networkr></networka></computer></onlinopt></digtopt></digform><fees>Free download</fees></stdorder></distinfo><metainfo><metd>20210715</metd><metc><cntinfo><cntorgp><cntorg>Alaska Division of Geological &amp; Geophysical Surveys</cntorg><cntper>Simone Montayne</cntper></cntorgp><cntpos>Metadata Manager</cntpos><cntaddr><addrtype>mailing and physical</addrtype><address>3354 College Road</address><city>Fairbanks</city><state>AK</state><postal>99709-3707</postal><country>USA</country></cntaddr><cntvoice>(907)451-5020</cntvoice><cntfax>(907)451-5050</cntfax><cntemail>dggspubs@alaska.gov</cntemail><hours>8 am to 4:30 pm, Monday through Friday, except State holidays</hours></cntinfo></metc><metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn><metstdv>FGDC-STD-001-1998</metstdv><metuc>If 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 &amp; Geophysical Surveys.</metuc><metextns><onlink>https://dggs.alaska.gov/metadata/dggs.ext</onlink><metprof>dggs metadata extensions</metprof></metextns></metainfo></metadata>","source_transform":null,"status":"error"}
