ascii_data: ASCII format line data, other ASCII data databases_geosoft: Geosoft format database of final line data, other Geosoft format databases documents: Project report, calibration reports grids_geosoft: Oasis montaj Geosoft GRD format gridded data grids_tif: Geographically registered data value rasters of gridded data, GeoTiff format maps_pdf: Printable and geographically registered maps in pdf format. models_resistivity: Models of subsurface resistivity inverted from measured EM response; agf_sci is the recommended model for end-users. vector_data: Line path and survey boundary in Esri shapefile (shp) format
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This work was supported by the State of Alaska capital improvement project funds.
The purpose of the Granite Mountain airborne electromagnetic survey is to characterize subsurface electrical resistivity across a portion of the Iditarod Quadrangle in western interior Alaska to support geologic mapping and mineral resource evaluation. This survey provides high resolution geophysical data that help identify concealed lithologic contacts, structural features, and alteration zones associated with gold and other metallic mineral deposits within the Kuskokwim Mountains. The resulting resistivity models and derived 3D datasets offer a framework for assessing mineral potential in an area of historically productive mining districts and geologically favorable host rocks.
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Are there legal restrictions on access or use of the data?Access_Constraints:
This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).Use_Constraints:Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
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.
| Data format: | Airborne electromagnetic geophysical survey data compilation in format GeoTiff, ESRI shapefile, Geosoft binary grid (GRD), Microsoft Office documents, PDF (with or without georeferencing), ER Mapper ERS, ASCII text files (including CSV), Geosoft database, AutoCAD DXF, Geosoft plot file (PLT), digital images (multiple formats), georeferenced photos (multiple formats), Geosoft ASCII XYZ, Geosoft ASCII files (PLY, i0, EXP), and KMZ. |
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| Network links: |
https://doi.org/10.14509/31964 |