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Fortymile Mining District Geophysical Survey

The Fortymile electromagnetic and magnetic airborne geophysical survey data were acquired with a DIGHEM-V Electromagnetic (EM) system and a cesium magnetometer. The EM and magnetic sensors were flown at a height of 30 meters (m). In addition the survey recorded data from radar and laser altimeters, a GPS navigation system, 50/60 Hz monitors and a video camera. Flights were performed with an AS-350-B2 Squirrel helicopter at a mean terrain clearance of 60 m along N-S survey flight lines with a spacing of 400 m. Tie lines were flown perpendicular to the flight lines at intervals of approximately 4,800 m

Available Data Metadata Overview
File Name Data File Format File Size Info
Download fortymile-geophys-vector-data Vector data 330.0 M Read me
Download fortymile-geophys-maps-prn Plot files 96.5 M Read me
Download fortymile-geophys-geosoft-database Linedata Geosoft format database 165.6 M Read me
Download fortymile-geophys-grids-geosoft Gridded data Geosoft format 79.2 M Read me
Download fortymile-geophys-grids-ermapper Gridded data ER Mapper 180.5 M Read me
Download fortymile-geophys-kmz Google Earth files 2.0 M Read me
Download fortymile-geophys-images Georeferenced raster files 91.6 M Read me
Download fortymile-geophys-documents Adobe PDF files 17.3 M Read me
Download fortymile-geophys-maps-pdf Adobe PDF files 45.9 M Read me
Download fortymile-geophys-profiles-stacked Adobe PDF files 785.2 M Read me
Download fortymile-geophys-ascii-data ASCII tabular files 824.4 M Read me


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