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Ruby Geophysical Survey

The Ruby electromagnetic and magnetic airborne geophysical survey is located in interior Alaska in the Ruby mining district, about 360 kilometers west of Fairbanks, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system from August to September 1997. A total of 3807 line kilometers were collected covering 1405.5 square kilometers. Line spacing was 400 meters (m). Data were collected 30 m above the ground surface from a helicopter towed sensor platform ('bird') on a 30 m long line. The survey data were aquired and/or processed by Geoterrex-Dighem and WGM, Inc. and administered by the Alaska Geological & Geophysical Surveys (DGGS).

Available Data Metadata Overview
File Name Data File Format File Size Info
Download gpr2019_023_ruby_1997_vector_data Vector data 30.2 M Read me
Download gpr2019_023_ruby_1997_maps_hpp_format Plot files 22.3 M Read me
Download gpr2019_023_ruby_1997_databases_geosoft Linedata Geosoft format database 23.3 M Read me
Download gpr2019_023_ruby_1997_images_registered Image files 5.8 M Read me
Download gpr2019_023_ruby_1997_grids_geosoft Gridded data Geosoft format 4.5 M Read me
Download gpr2019_023_ruby_1997_grids_ermapper Gridded data ER Mapper 4.4 M Read me
Download gpr2019_023_ruby_1997_kmz Google Earth files 49.3 M Read me
Download gpr2019_023_ruby_1997_documents Adobe PDF files 10.6 M Read me
Download gpr2019_023_ruby_1997_maps_pdf_format Adobe PDF files 204.4 M Read me
Download gpr2019_023_ruby_1997_profiles_stacked Adobe PDF files 35.2 M Read me
Download gpr2019_023_ruby_1997_ascii_data ASCII tabular files 23.8 M Read me


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