{"action":"create","ckan_id":null,"date_created":"Sat, 07 Mar 2026 21:06:52 GMT","date_finished":null,"harvest_job_id":"7ef2ecb3-c47f-4efa-83d7-b0bbe697cf93","harvest_source_id":"31f41541-38a0-400b-b240-10ebcb0acd9a","id":"1980d5ca-1ab2-4319-8c83-253aa7a72b3d","identifier":"https://dggs.alaska.gov/webpubs/metadata/GPR2020-11.xml","parent_identifier":null,"source_hash":"65626d7df7fe65e721671e8b956aafe1f53001415d88d049691badd6ff6955a8","source_raw":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<metadata>\n<idinfo>\n<citation>\n<citeinfo>\n<origin>Burns, L.E.</origin>\n<origin>Graham, G.R.C.</origin>\n<origin>Barefoot, J.D.</origin>\n<origin>WGM Mining and Geological Consultants, Inc.</origin>\n<pubdate>2020</pubdate>\n<title>Stikine electromagnetic and magnetic airborne geophysical survey data compilation</title>\n<geoform>digital data</geoform>\n<serinfo>\n<sername>Geophysical Report</sername>\n<issue>GPR 2020-11</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>15 p</othercit>\n<onlink>http://doi.org/10.14509/30457</onlink>\n</citeinfo>\n</citation>\n<descript>\n<abstract>The Stikine geophysical survey is located in southeast Alaska near the city of Wrangell, about 175 kilometers south of Juneau, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system from March to May 1997. A total of 8,097 line kilometers were collected covering 2,870.1 square kilometers. Line spacing was 400 meters (m). Data were collected approximately 30 m above the ground cover or tree canopy from a helicopter-towed sensor platform (\"bird\") on a 30-m-long line. The large trees and steep terrain resulted in an average ground clearance of 150 m. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30457.</abstract>\n<purpose>This airborne geophysical survey is part of a program to acquire data on Alaska's most promising mineral belts and districts. The information acquired is aimed at catalyzing new private-sector exploration, discovery, and ultimate development and production. The purpose of the survey was to map the magnetic and conductive properties of the survey area. Mineral prospects in the survey area include Mad Dog, East Lake, Lost Lake, and Frenchie. A small amount of gold was produced from the Helen S mine during the earth 20th century, and barite was mined from Castle Island between 1963 and 1980. Other gold and base-metal anomalies, altered zones, favorable lithologies, and structural zones are known to exist throughout the survey area.</purpose>\n<supplinf>\n&gt;ascii_data:    ASCII format line data, other ASCII data\t\n&gt;databases_geosoft:    Geosoft format database of line data, other Geosoft format databases\t\n&gt;documents:    Project and field reports, survey background information, gridded data explanations, other supporting documentation\t\n&gt;grids_ermapper:    Geographically registered gridded data, ER Mapper ERS format\t\n&gt;grids_geosoft:    Geosoft-format binary grids, these grids can be viewed in ESRI ArcMap using a free plugin from Geosoft or using the free viewer available from Geosoft\t\n&gt;images_registered:    GeoTiff format images of all gridded data\t\n&gt;kmz:    Keyhole markup language (kml) kmz archive files of project data. Viewable in Google Earth and other compatible programs\t\n&gt;maps_pdf_format:    Printable maps in pdf format\t\n&gt;vector_data:    Line path, data contours, and survey boundary in ESRI shapefile (SHP) format, ESRI Geodatabase format, and/or AutoCAD dxf format\n</supplinf>\n</descript>\n<timeperd>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<current>ground condition</current>\n</timeperd>\n<status>\n<progress>complete</progress>\n<update>None planned</update>\n</status>\n<spdom>\n<bounding>\n<westbc>-133.780353</westbc>\n<eastbc>-131.898428</eastbc>\n<northbc>57.079546</northbc>\n<southbc>56.041506</southbc>\n</bounding>\n</spdom>\n<keywords>\n<theme>\n<themekt>ISO 19115 Topic Category</themekt>\n<themekey>geoscientificInformation</themekey>\n</theme>\n<theme>\n<themekt>Alaska Division of Geological &amp; Geophysical Surveys</themekt>\n<themekey>Aeromagnetic</themekey>\n<themekey>Aeromagnetic Data</themekey>\n<themekey>Aeromagnetic Map</themekey>\n<themekey>Aeromagnetic Survey</themekey>\n<themekey>Airborne Geophysical Survey</themekey>\n<themekey>Analytic Signal</themekey>\n<themekey>Apparent Resistivity Data</themekey>\n<themekey>Apparent Resistivity Map</themekey>\n<themekey>Apparent Resistivity Survey</themekey>\n<themekey>Conductivity Survey</themekey>\n<themekey>Electromagnetic Data</themekey>\n<themekey>Electromagnetic Survey</themekey>\n<themekey>Exploration</themekey>\n<themekey>First Vertical Derivative</themekey>\n<themekey>Frequency Domain Electromagnetic Data</themekey>\n<themekey>Geologic</themekey>\n<themekey>Geology</themekey>\n<themekey>Geophysical Map</themekey>\n<themekey>Geophysical Survey</themekey>\n<themekey>Geophysics</themekey>\n<themekey>Geophysics Search Tag</themekey>\n<themekey>Gridded Data</themekey>\n<themekey>Line Data</themekey>\n<themekey>Magnetic Data</themekey>\n<themekey>Magnetic Survey</themekey>\n<themekey>Magnetics</themekey>\n<themekey>Remote Sensing</themekey>\n<themekey>Resistivity</themekey>\n<themekey>Resistivity Survey</themekey>\n</theme>\n<place>\n<placekt>Alaska Division of Geological &amp; Geophysical Surveys</placekt>\n<placekey>Aaron Creek</placekey>\n<placekey>Alice Peak</placekey>\n<placekey>Baht Harbor</placekey>\n<placekey>Bains Cove</placekey>\n<placekey>Barrie Lake</placekey>\n<placekey>Battery Islets</placekey>\n<placekey>Beecher Pass</placekey>\n<placekey>Berg Creek</placekey>\n<placekey>Berg Mountain</placekey>\n<placekey>Big Castle Island</placekey>\n<placekey>Big Creek</placekey>\n<placekey>Big John Creek</placekey>\n<placekey>Big Saltery Island</placekey>\n<placekey>Blowdown Island</placekey>\n<placekey>Bohemian Range</placekey>\n<placekey>Burnett Lake</placekey>\n<placekey>Burnt Island</placekey>\n<placekey>Butterworth Island</placekey>\n<placekey>Castle Islands</placekey>\n<placekey>Castle River</placekey>\n<placekey>Cathedral Falls Creek</placekey>\n<placekey>Christmas Island</placekey>\n<placekey>Cloverleaf Island</placekey>\n<placekey>Colorado Creek</placekey>\n<placekey>Deadman Island</placekey>\n<placekey>Dry Cove</placekey>\n<placekey>Duncan Canal</placekey>\n<placekey>Duncan Creek</placekey>\n<placekey>Emily Island</placekey>\n<placekey>Fair Island</placekey>\n<placekey>Frederick Sound</placekey>\n<placekey>Fritter Cove</placekey>\n<placekey>Glacier Creek</placekey>\n<placekey>Grief Island</placekey>\n<placekey>Hamilton Creek</placekey>\n<placekey>Harbor Island</placekey>\n<placekey>Harrys Lake</placekey>\n<placekey>Harvey Lake</placekey>\n<placekey>High Castle Island</placekey>\n<placekey>Independence Island</placekey>\n<placekey>Irish Creek</placekey>\n<placekey>Jewell Island</placekey>\n<placekey>Kah Sheets Creek</placekey>\n<placekey>Kah Sheets Island</placekey>\n<placekey>Kah Sheets Lake</placekey>\n<placekey>Keating Range</placekey>\n<placekey>Keene Channel</placekey>\n<placekey>Keene Island</placekey>\n<placekey>Keku Creek</placekey>\n<placekey>Kupreanof Island</placekey>\n<placekey>Kushneahin Creek</placekey>\n<placekey>Kushneahin Lake</placekey>\n<placekey>Lava Creek</placekey>\n<placekey>Little Baht Harbor</placekey>\n<placekey>Little Saltery Island</placekey>\n<placekey>Lovelace Creek</placekey>\n<placekey>Lung Island</placekey>\n<placekey>Marsha Peak</placekey>\n<placekey>Middle Creek</placekey>\n<placekey>Mosman Island</placekey>\n<placekey>Moss Island</placekey>\n<placekey>Mount Waters</placekey>\n<placekey>Navy Lake</placekey>\n<placekey>Nelson Glacier</placekey>\n<placekey>Pearl Island</placekey>\n<placekey>Porcupine Creek</placekey>\n<placekey>Porterfield Creek</placekey>\n<placekey>Quiet Harbor</placekey>\n<placekey>Rookery Island</placekey>\n<placekey>Roosevelt Harbor</placekey>\n<placekey>Saint John Harbor</placekey>\n<placekey>Salmon Creek</placekey>\n<placekey>Southerly Island</placekey>\n<placekey>Spirit Creek</placekey>\n<placekey>Taylor Creek</placekey>\n<placekey>Towers Lake</placekey>\n<placekey>Tunehean Creek</placekey>\n<placekey>Whiskey Pass</placekey>\n<placekey>Woewodski Island</placekey>\n<placekey>Woodpecker Cove</placekey>\n<placekey>Wrangell Narrows</placekey>\n<placekey>Zarembo Island</placekey>\n</place>\n</keywords>\n<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>\n<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>\n<ptcontac>\n<cntinfo>\n<cntorgp>\n<cntorg>Alaska Division of Geological &amp; Geophysical Surveys</cntorg>\n</cntorgp>\n<cntpos>GIS Manager</cntpos>\n<cntaddr>\n<addrtype>mailing and physical</addrtype>\n<address>3354 College Rd</address>\n<city>Fairbanks</city>\n<state>AK</state>\n<postal>99709-3707</postal>\n<country>USA</country>\n</cntaddr>\n<cntvoice>907-451-5020</cntvoice>\n<cntemail>dggsgis@alaska.gov</cntemail>\n<hours>8 am to 4:30 pm, Monday through Friday, except State holidays</hours>\n</cntinfo>\n</ptcontac>\n<datacred>Funding was provided by the U.S. Department of the Interior Bureau of Land Management (BLM) and the City of Wrangell.</datacred>\n<crossref>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<pubdate>2014</pubdate>\n<title>Airborne GeophysWeb: A compilation of geophysical data from DGGS and cooperating agencies</title>\n<serinfo>\n<sername>Digital Data Series</sername>\n<issue>DDS 2</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<onlink>http://doi.org/10.14509/27222</onlink>\n</citeinfo>\n</crossref>\n<crossref>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<pubdate>2016</pubdate>\n<title>Alaska merged geophysical data grids</title>\n<serinfo>\n<sername>Digital Data Series</sername>\n<issue>DDS 12</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>3 p</othercit>\n<onlink>http://doi.org/10.14509/29555</onlink>\n</citeinfo>\n</crossref>\n</idinfo>\n<dataqual>\n<attracc>\n<attraccr>Geophysical data were acquired according to the contractor, contract, and request-for-proposals specifications. For additional detail about survey parameters, see the accompanying project report available in the documents directory of this data distribution package.</attraccr>\n</attracc>\n<logic>Data originate from one company using the same contract specifications for all data. The originating coordinate system was retained for all publication products.</logic>\n<complete>This data set includes files that contain processed aeromagnetic measurements, electromagnetic measurements, altimetry measurements, and locational data for the entire survey area.</complete>\n<posacc>\n<horizpa>\n<horizpar>These data are positioned with post-processed differential GPS. Discussion of grid resolution and factors that may impact the overall horizontal accuracy of the gridded data is available in the documents directory of this data distribution package.</horizpar>\n</horizpa>\n<vertacc>\n<vertaccr>Not applicable</vertaccr>\n</vertacc>\n</posacc>\n<lineage>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>Burns, L.E.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>Portfolio of aeromagnetic and resistivity maps of the Stikine area, southeast Alaska</title>\n<serinfo>\n<sername>Public Data File</sername>\n<issue>PDF 97-43</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>19 p., 1 sheet</othercit>\n<onlink>http://doi.org/10.14509/1808</onlink>\n</citeinfo>\n</srccite>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>Burns, L.E. and U.S. Bureau of Land Management, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<origin>Dighem</origin>\n<origin>WGM, Inc.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>7200 Hz coplanar resistivity of the Stikine area, southeast Alaska, Map A - north Duncan Canal</title>\n<serinfo>\n<sername>Report of Investigation</sername>\n<issue>RI 97-19A</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>1 sheet, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/2571</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>DGGS Staff and others, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<origin>Dighem</origin>\n<origin>WGM, Inc.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>7200 Hz coplanar resistivity of the Stikine area, southeast Alaska, Map A -north Duncan Canal</title>\n<serinfo>\n<sername>Public Data File</sername>\n<issue>PDF 97-40A</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>1 sheet, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/1801</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>DGGS Staff and others, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<origin>Dighem</origin>\n<origin>WGM, Inc.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>7200 Hz coplanar resistivity of the Stikine area, southeast Alaska, Map B - south Duncan Canal</title>\n<serinfo>\n<sername>Public Data File</sername>\n<issue>PDF 97-40B</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>1 sheet, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/1802</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>DGGS Staff and others, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<origin>Dighem</origin>\n<origin>WGM, Inc.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>7200 Hz coplanar resistivity of the Stikine area, southeast Alaska, Map C - Zarembo Island and eastern Prince of Wales Island</title>\n<serinfo>\n<sername>Public Data File</sername>\n<issue>PDF 97-40C</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>1 sheet, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/1803</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>DGGS Staff and others, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<origin>Dighem</origin>\n<origin>WGM, Inc.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>7200 Hz coplanar resistivity of the Stikine area, southeast Alaska, Map C - Zarembo Island and eastern Prince of Wales Island</title>\n<serinfo>\n<sername>Report of Investigation</sername>\n<issue>RI 97-19C</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>1 sheet, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/2573</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>DGGS Staff and others, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<origin>Dighem</origin>\n<origin>WGM, Inc.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>7200 Hz coplanar resistivity of the Stikine area, southeast Alaska, Map D - western Etolin Island</title>\n<serinfo>\n<sername>Public Data File</sername>\n<issue>PDF 97-40D</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>1 sheet, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/1804</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>DGGS Staff and others, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<origin>Dighem</origin>\n<origin>WGM, Inc.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>7200 Hz coplanar resistivity of the Stikine area, southeast Alaska, Map E - Groundhog Basin</title>\n<serinfo>\n<sername>Public Data File</sername>\n<issue>PDF 97-40E</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; 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Geophysical Surveys</publish>\n</pubinfo>\n<othercit>1 sheet, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/2563</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>DGGS Staff and others, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<origin>Dighem</origin>\n<origin>WGM, Inc.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>Total field magnetics of the Stikine area, southeast Alaska, Map D - western Etolin Island</title>\n<serinfo>\n<sername>Report of Investigation</sername>\n<issue>RI 97-17D</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>1 sheet, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/2564</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>DGGS Staff and others, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>DGGS Staff</origin>\n<origin>Dighem</origin>\n<origin>WGM, Inc.</origin>\n<origin>U.S. Bureau of Land Management</origin>\n<pubdate>1997</pubdate>\n<title>Total field magnetics of the Stikine area, southeast Alaska, Map E - Groundhog Basin</title>\n<serinfo>\n<sername>Report of Investigation</sername>\n<issue>RI 97-17E</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>1 sheet, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/2565</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>DGGS Staff and others, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<srcinfo>\n<srccite>\n<citeinfo>\n<origin>Pritchard, R.A.</origin>\n<origin>Dighem</origin>\n<pubdate>1997</pubdate>\n<title>Project report of the airborne geophysical survey for Stikine area, southeast Alaska</title>\n<serinfo>\n<sername>Public Data File</sername>\n<issue>PDF 97-44</issue>\n</serinfo>\n<pubinfo>\n<pubplace>Fairbanks, Alaska, United States</pubplace>\n<publish>Alaska Division of Geological &amp; Geophysical Surveys</publish>\n</pubinfo>\n<othercit>206 p., 5 sheets, scale 1:63,360</othercit>\n<onlink>http://doi.org/10.14509/1809</onlink>\n</citeinfo>\n</srccite>\n<srcscale>63360</srcscale>\n<typesrc>paper</typesrc>\n<srctime>\n<timeinfo>\n<sngdate>\n<caldate>1997</caldate>\n</sngdate>\n</timeinfo>\n<srccurr>publication date</srccurr>\n</srctime>\n<srccitea>Pritchard, R.A. and Dighem, 1997</srccitea>\n<srccontr>Data collection, processing, and delivery</srccontr>\n</srcinfo>\n<procstep>\n<procdesc>Data collection, processing, and delivery - The airborne geophysical data were acquired under contract with WGM Mining and Geological Consultants, Inc. The contractor's project report and other supporting documents are in the \"documents\" digital data package. They provide detailed documentation of the system specifications, data collection, processing, and delivery.</procdesc>\n<srcused>Burns, L.E. and U.S. Bureau of Land Management, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>DGGS Staff and others, 1997</srcused>\n<srcused>Pritchard, R.A. and Dighem, 1997</srcused>\n<procdate>1997</procdate>\n</procstep>\n<procstep>\n<procdesc>Line data retrieved from binary archive - Geosoft .xyz file for the Zarembo Island block contained corrupt data. Original line data for the block was delivered as an .adb archive. Dighem/I*POWER's proprietary Archive Data Extraction program (ARCEX) v. 1.01 was used to extract line data from the archive in Geosoft .xyz format in DOSBox v. 0.74-2.</procdesc>\n<procdate>2019</procdate>\n</procstep>\n<procstep>\n<procdesc>Grid development - Grids delivered by the contractor were split into different blocks, so the sim_magtf, res7200hz, and res900hz grids were regenerated from channels MAGIGRF, RES7200, and RES900, respectively, using the Minimum Curvature option in Geosoft Oasis Montaj v9 with the following settings: grid cell size = 40 m, blanking distance = 400, cells to extend beyond data = 1. The analytic signal grid was generated by using the analytic signal function in Geosoft Oasis Montaj v9 on 100m upward continued simulated total magnetic field grid. The calculated first vertical derivative grid was created during the analytic signal process. The derivatives in the analytic signal calculation were computed using a fast Fourier transform (FFT) based 2D filter. All grids were then converted to ER Mapper grids using the Copy/Convert option in Geosoft.</procdesc>\n<procdate>2019</procdate>\n</procstep>\n<procstep>\n<procdesc>RGB GeoTiff creation - RGB GeoTIFF raster files of gridded data were exported using Geosoft v9 by loading each Geosoft grid onto a map and using the map export tool.</procdesc>\n<procdate>2019</procdate>\n</procstep>\n<procstep>\n<procdesc>GeoPDF creation - Geospatial pdf file created using the Export Map function in Geosoft Oasis Montaj v9 with all maps layers visible.</procdesc>\n<procdate>2019</procdate>\n</procstep>\n<procstep>\n<procdesc>DXF conversion and geographic referencing - Contractor provided AutoCAD DXF files were converted to an ESRI Geodatabase in ArcMap v10 using the CAD to Geodatabase tool.</procdesc>\n<procdate>2019</procdate>\n</procstep>\n<procstep>\n<procdesc>Standard Boundary Polygon - The final boundary polygon was generated by loading the line data in Geosoft Oasis Montaj v9. The channel MAG was gridded using the Minimum Curvature option with the following settings: grid cell size = 25, blanking distance = 800, cells to extend beyond data = 2. The polygon file was created using Grid Outline tool with edge resolution = 1. The polygon file was exported to ESRI shapefile.</procdesc>\n<procdate>2019</procdate>\n</procstep>\n<procstep>\n<procdesc>Keyhole markup language (kml) KMZ archive creation - Data were exported from Geosoft and ESRI ArcMap to kml format files and/or KMZ archives. These files were then combined and modified in Google Earth Pro to create the final KMZ file.</procdesc>\n<procdate>2019</procdate>\n</procstep>\n<procstep>\n<procdesc>Simulated Magnetic Total Field - In this publication's older products and documentation the magnetic data products have been referred to as Total Field Magnetics on the maps and the MAGIGRF channel in the line data and 'tf_mag' as a filename abbreviation. The new term 'sim_magtf' has been created to rename and clarify that the data are not representative of the true total magnetic field as the IGRF values have been removed with a single average value added back to the entire dataset, resulting in the IGRF gradient being removed. The term simulated magnetic total field and the filename abbreviation 'sim_magtf' is now used to identify these magnetic data.</procdesc>\n<procdate>2019</procdate>\n</procstep>\n<procstep>\n<procdesc>Data cataloged for archival and publication - All files were renamed and placed in a standardized set of folders according to the DGGS Geophysics Data Management Manual. Where applicable and as needed data were converted to newer file formats and new files were created. Supporting documentation including but not limited to readme text files, maps, figures, survey overview report, missing data type explanations, and metadata were created.</procdesc>\n<procdate>2019</procdate>\n</procstep>\n</lineage>\n</dataqual>\n<spref>\n<horizsys>\n<planar>\n<gridsys>\n<gridsysn>Universal Transverse Mercator</gridsysn>\n<utm>\n<utmzone>8</utmzone>\n<transmer>\n<sfctrmer>0.999600</sfctrmer>\n<longcm>-135</longcm>\n<latprjo>0</latprjo>\n<feast>500000.000000</feast>\n<fnorth>0</fnorth>\n</transmer>\n</utm>\n</gridsys>\n<planci>\n<plance>coordinate pair</plance>\n<coordrep>\n<absres>.00000001</absres>\n<ordres>.00000001</ordres>\n</coordrep>\n<plandu>Meters</plandu>\n</planci>\n</planar>\n<geodetic>\n<horizdn>North American Datum of 1927</horizdn>\n<ellips>Clarke 1866</ellips>\n<semiaxis>6378206.40000000037</semiaxis>\n<denflat>294.978698199999997</denflat>\n</geodetic>\n</horizsys>\n</spref>\n<eainfo>\n<detailed>\n<enttyp>\n<enttypl>ascii_data</enttypl>\n<enttypd>ASCII format line data, other ASCII data</enttypd>\n<enttypds>WGM Mining and Geological Consultants</enttypds>\n<ealname>ascii_data</ealname>\n</enttyp>\n</detailed>\n<detailed>\n<enttyp>\n<enttypl>databases_geosoft</enttypl>\n<enttypd>Geosoft format database of line data, other Geosoft format databases</enttypd>\n<enttypds>WGM Mining and Geological Consultants</enttypds>\n<ealname>databases_geosoft</ealname>\n</enttyp>\n</detailed>\n<detailed>\n<enttyp>\n<enttypl>documents</enttypl>\n<enttypd>Project and field reports, survey background information, gridded data explanations, other supporting documentation</enttypd>\n<enttypds>WGM Mining and Geological Consultants and Alaska Division of Geological &amp; Geophysical Surveys (DGGS)</enttypds>\n<ealname>documents</ealname>\n</enttyp>\n</detailed>\n<detailed>\n<enttyp>\n<enttypl>grids_ermapper</enttypl>\n<enttypd>Geographically registered gridded data, ER Mapper ERS format</enttypd>\n<enttypds>WGM Mining and Geological Consultants and Alaska Division of Geological &amp; Geophysical Surveys (DGGS)</enttypds>\n<ealname>grids_ermapper</ealname>\n</enttyp>\n</detailed>\n<detailed>\n<enttyp>\n<enttypl>grids_geosoft</enttypl>\n<enttypd>Geosoft-format binary grids, these grids can be viewed in ESRI ArcMap using a free plugin from Geosoft or using the free viewer available from Geosoft</enttypd>\n<enttypds>WGM Mining and Geological Consultants and Alaska Division of Geological &amp; Geophysical Surveys (DGGS)</enttypds>\n<ealname>grids_geosoft</ealname>\n</enttyp>\n</detailed>\n<detailed>\n<enttyp>\n<enttypl>images_registered</enttypl>\n<enttypd>GeoTiff format images of all gridded data</enttypd>\n<enttypds>Alaska Division of Geological &amp; Geophysical Surveys (DGGS)</enttypds>\n<ealname>images_registered</ealname>\n</enttyp>\n</detailed>\n<detailed>\n<enttyp>\n<enttypl>kmz</enttypl>\n<enttypd>Keyhole markup language (kml) kmz archive files of project data. Viewable in Google Earth and other compatible programs</enttypd>\n<enttypds>Alaska Division of Geological &amp; Geophysical Surveys (DGGS)</enttypds>\n<ealname>kmz</ealname>\n</enttyp>\n</detailed>\n<detailed>\n<enttyp>\n<enttypl>maps_pdf_format</enttypl>\n<enttypd>Printable maps in pdf format</enttypd>\n<enttypds>WGM Mining and Geological Consultants</enttypds>\n<ealname>maps_pdf_format</ealname>\n</enttyp>\n</detailed>\n<detailed>\n<enttyp>\n<enttypl>vector_data</enttypl>\n<enttypd>Line path, data contours, and survey boundary in ESRI shapefile (SHP) format, ESRI Geodatabase format, and/or AutoCAD dxf format</enttypd>\n<enttypds>WGM Mining and Geological Consultants and Alaska Division of Geological &amp; Geophysical Surveys (DGGS)</enttypds>\n<ealname>vector_data</ealname>\n</enttyp>\n</detailed>\n</eainfo>\n<distinfo>\n<distrib>\n<cntinfo>\n<cntorgp>\n<cntorg>State of Alaska, Department of Natural Resources, Division of Geological &amp; Geophysical Surveys</cntorg>\n</cntorgp>\n<cntaddr>\n<addrtype>mailing and physical</addrtype>\n<address>3354 College Road</address>\n<city>Fairbanks</city>\n<state>AK</state>\n<postal>99709-3707</postal>\n<country>USA</country>\n</cntaddr>\n<cntvoice>907-451-5020</cntvoice>\n<cntfax>907-451-5050</cntfax>\n<cntemail>dggspubs@alaska.gov</cntemail>\n<hours>8 am to 4:30 pm, Monday through Friday, except State holidays</hours>\n<cntinst>Please view our website (http://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.</cntinst>\n</cntinfo>\n</distrib>\n<resdesc>GPR 2020-11</resdesc>\n<distliab>The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity, whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requestor or anyone else exceed the fee paid for the electronic service or product.</distliab>\n<stdorder>\n<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>\n<fees>see http://dx.doi.org/10.14509/30457</fees>\n</stdorder>\n<stdorder>\n<digform>\n<digtinfo>\n<formname>DGGS geophysics datasets are typically compilations of multiple digital data file formats. These formats may include: GeoTiff, ESRI shapefile, Geosoft binary grid (GRD), Microsoft Office documents, PDF, ER Mapper ERS, ASCII text files (including CSV), Geosoft ASCII grid (GXF), Geosoft database, AutoCAD DXF, Geosoft plot file (PLT), Printer files (HPP, PRN, or other), digital images (multiple formats), digital video (multiple formats), Geosoft ASCII XYZ, Geosoft ASCII files (PLY, i0, EXP), and KMZ</formname>\n</digtinfo>\n<digtopt>\n<onlinopt>\n<computer>\n<networka>\n<networkr>http://dx.doi.org/10.14509/30457</networkr>\n</networka>\n</computer>\n</onlinopt>\n</digtopt>\n</digform>\n<fees>Free download</fees>\n</stdorder>\n</distinfo>\n<metainfo>\n<metd>20200529</metd>\n<metc>\n<cntinfo>\n<cntperp>\n<cntper>Simone Montayne</cntper>\n</cntperp>\n<cntaddr>\n<addrtype>mailing and physical</addrtype>\n<address>3354 College Road</address>\n<city>Fairbanks</city>\n<state>AK</state>\n<postal>99709-3707</postal>\n<country>USA</country>\n</cntaddr>\n<cntvoice>907-451-5020</cntvoice>\n</cntinfo>\n</metc>\n<metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn>\n<metstdv>FGDC-STD-001-1998</metstdv>\n<metuc>If the user has modified this metadata file in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent this metadata file, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological &amp; Geophysical Surveys.</metuc>\n<metextns>\n<onlink>http://www.dggs.alaska.gov/metadata/dggs.ext</onlink>\n<metprof>dggs metadata extensions</metprof>\n</metextns>\n</metainfo>\n</metadata>\n","source_transform":null,"status":"error"}