ad000854-62ce-4b2c-ac68-ff3413b97d91_source eng; USA utf8 dataset Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 3354 College Road Fairbanks AK 99709-3707 USA pointOfContact 2016-03-29 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) Alaska merged geophysical data grids 2016-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher DGGS Staff originator http://dx.doi.org/10.14509/29555 DIGITAL DATA Digital Data Series DDS 12 Merged grids of residual magnetic intensity, digital terrain model, and apparent resistivity compiled from the Black Mountain, Liscum, Goodpaster, SE extension of Salcha River - Pogo, and Salcha River Pogo geophysical surveys. This electromagnetic and magnetic airborne geophysical survey data compilation is a product of the Alaska Division of Geological & Geophysical Surveys' (DGGS) Airborne Geophysical/Geological Mineral Inventory (AGGMI) program and the Alaska Strategic and Critical Minerals Assessment Capital Improvement Project. The goal of the Alaska Division of Geological & Geophysical Surveys' (DGGS) Airborne Geophysical/Geological Mineral Inventory (AGGMI) program is to enhance the understanding of Alaska's mineral resources and stimulate private-sector mineral development. The program seeks to delineate mineral zones on Alaska State lands that: (1) have major economic value; (2) can be developed in the short term to provide high-quality jobs for Alaskans; and (3) will provide economic diversification to help offset the loss of Prudhoe Bay oil revenue. Candidate lands for this program are identified on the basis of existing geologic knowledge, land ownership, and nominations from Alaska's geologic community. The AGGMI program and resulting new geologic knowledge are recognized worldwide and have encouraged millions of dollars of venture capital expenditures in the local economies of the surveyed mining districts. These venture capital expenditures have led to discovery and delineation of new mineral resources. The multi-year Strategic and Critical Minerals Assessment Capital Improvement Project (SCMA) was established to determine Alaska's geologic potential for rare-earth elements and other minerals that are essential for our modern, technology-based society. This program began in FY2012 with a data survey and compilation of existing information on rare-earth-element occurrences in Alaska, and expanded significantly in FY2013 to include additional critical minerals, re-analyses of existing samples, and obtaining new field and analytical data, including airborne geophysics. Funding for the originating geophysical surveys was provided by the Alaska Division of Geological & Geophysical Surveys' (DGGS) Airborne Geophysical/Geological Mineral Inventory (AGGMI) program. The geophysical surveys were managed by State of Alaska, Department of Natural Resources (DNR), Division of Geological & Geophysical Surveys (DGGS). The survey data were collected and processed by Fugro Airborne Surveys Corp., and Geoterrex-Dighem. These Merged grids were generated as part of the Black Mountain - Liscum data collection contract. planned Alaska Division of Geological & Geophysical Surveys GIS Manager (907)451-5020 3354 College Road Fairbanks AK 99709-3707 USA dggsgis@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays pointOfContact asNeeded Airborne Geophysical Survey Electromagnetic Data Electromagnetic Survey Geophysical Map Geophysical Survey Geophysics Geophysics Search Tag Gridded Data Magnetic Data Magnetic Survey Magnetics theme Alaska Division of Geological & Geophysical Surveys Alaska, State of place Alaska Division of Geological & Geophysical Surveys 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. otherRestrictions Use Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product. otherRestrictions Access Constraints: This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below). Yukon - Eastern Alaska magnetic grid 2015-01-01 publication Natural Resources Canada Canada publisher Geological Survey of Canada originator U.S. Geological Survey originator http://gdr.agg.nrcan.gc.ca/gdrdap/dap/index-eng.php?productid=1587 crossReference grid eng; USA geoscientificInformation -145.8169990 -143.9942891 64.1790974 64.9825493 1999-01-01 2005-01-01 >bm_lis_go_sesrp_srp: Geosoft-format binary grids, GeoTiff format gridded data images, KMZ/KML files, Geosoft ASCII polygon files (PLY), Geosoft ASCII zone files, ESRI Shapefiles, and ERMapper files. Note: these data are provided in both UTM Zone 6 - NAD27 and Geographic WGS84 projections. The data files were compiled from the Black Mountain, Liscum, Goodpaster, SE extension of Salcha River - Pogo, and Salcha River Pogo geophysical surveys. true Geosoft-format binary grids, GeoTiff format gridded data images, KMZ/KML files, Geosoft ASCII polygon files (PLY), Geosoft ASCII zone files, ESRI Shapefiles, and ERMapper files. unknown Alaska Division of Geological & Geophysical Surveys (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays 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. distributor Contact DGGS for current pricing Free download http://dx.doi.org/10.14509/29555 Geosoft-format binary grids, GeoTiff format gridded data images, KMZ/KML files, Geosoft ASCII polygon files (PLY), Geosoft ASCII zone files, ESRI Shapefiles, and ERMapper files. CSDGM IMPORT ERROR: No digtinfo/formcont information dataset Horizontal Positional Accuracy Report All originating data were positioned by DGPS (Differential Global Positioning System) with an accuracy of 5 meters or better. Helicopter and fixed wing geophysical surveys often have small data gaps that do not negatively impact the overall quality of the final products. Reference the metadata for each originating survey for specific details. Helicopter and fixed wing geophysical surveys often have small data gaps that do not negatively impact the overall quality of the final products. Reference the metadata for each originating survey for specific details. These data originate from multiple similar geophysical surveys with different specifications. Reference the metadata of each originating survey for exact specifications. This lineage was generated by the FGDC CSDGM to 19139 transformation Gridded data - The gridded data from the Black Mountain, Liscum, Goodpaster, SE extension of Salcha River - Pogo, and Salcha River Pogo geophysical surveys were merged. The diurnally corrected magnetic data were adjusted for regional variations i.e. IGRF gradient, The residual grids of all the areas may therefore have different base values dependent on the IGRF model used for each grid. The grids were adjusted to each other prior to the final merge. The apparent resistivity grids for 56,000 Hz, 7200 Hz, and 900 Hz coplanar EM data were merged with no reprocessing. Oasis Montaj grid "Suture" technique with the "No De-trending" option was used to merge the grids. The process requires selecting a "master" grid or the grid that all other grids will be levelled to. The grid that was published first is usually chosen and the grid from the most recent survey was selected as the secondary grid (i.e. the grid that will be DC shifted to the master grid). 2011-01-01T00:00:00 Projection assignment - All Geosoft grids were missing projection information. These data were projected to UTM Zone 6 N NAD27 meters in accordance to the project report of the Liscum survey. Geosoft version 8.5 was used to assign projections to the grids. 2016-01-01T00:00:00 Boundary - DGGS staff constructed a boundary of the merged grid file. The grid boundary was constructed using Geosoft Oaisis montaj grid outline and map export functions. The boundary file is available in Geosft PLY ASCII format and ESRI Shapefile format. 2016-01-01T00:00:00 Google Earth KMZ files - DGGS staff created Google Earth KMZ/KML files from the grid files data using ESRI ArcGIS software. 2016-01-01T00:00:00 Source Contribution: gridded dataSource Type: digital data Line, gridded, and vector data of airborne geophysical survey data for the southeastern extension of Salcha River-Pogo survey, Goodpaster mining district, east-central Alaska 2002-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Alaska Division of Geological & Geophysical Surveys originator Fugro Airborne Surveys originator Stevens Exploration Management Corp. originator Burns, L.E. originator http://dx.doi.org/10.14509/2789 Geophysical Report GPR 2002-2 1 DVD 2002-01-01 Source Contribution: gridded dataSource Type: digital data Line, grid, and vector data for the airborne geophysical survey data of part of the Goodpaster River area, Goodpaster mining district, Interior Alaska 2005-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Fugro Airborne Surveys Corp. originator Stevens Exploration Management Corp. originator http://dx.doi.org/10.14509/7000 Geophysical Report GPR 2005-2 1 DVD 2005-01-01 Source Contribution: gridded dataSource Type: digital data Line, grid, and vector data and plot files for the airborne geophysical survey data of parts of the East Richardson, Liscum, and Black Mountain areas, Interior Alaska 2006-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Fugro Airborne Surveys Corp. originator Stevens Exploration Management Corp. originator http://dx.doi.org/10.14509/14531 Geophysical Report GPR 2006-5 29 sheets, 1 DVD 2006-01-01 Source Contribution: gridded dataSource Type: digital data CD-ROM containing profile and gridded data and section line of 2000 geophysical survey data for the Salcha River-Pogo mining area, central Alaska 2000-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator Stevens Exploration Management Corp. originator http://dx.doi.org/10.14509/2763 Geophysical Report GPR 2000-21 1 DVD 2000-01-01 otherRestrictions Metadata Use Constraints: 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 & Geophysical Surveys. unknown This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2019-08-12T11:11:00 version of the FGDC CSDGM to ISO 19139 transform. Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 3354 College Road Fairbanks AK 99709-3707 USA pointOfContact