Bonnifield Mining District Geophysical Survey

The Bonnifield electromagnetic and magnetic airborne geophysical survey data were acquired in 2006 and 2007 with a DIGHEM-V Electromagnetic (EM) system and a cesium magnetometer. Aeromagnetic and electromagnetic data were acquired for 613 sq miles during the helicopter-based survey. These new data were combined with a geophysical survey of the Liberty Bell area released in 2002 by DGGS. The merged grids and maps are included in this dataset.

Available Data Metadata Overview
File Name	Data File Format	File Size	Info
Download gpr2016_001_bonnifield-geophys-vector-data	Vector data	193.1 M	Read me
Download gpr2016_001_bonnifield-geophys-maps-prn-format	Plot files	93.4 M	Read me
Download gpr2016_001_bonnifield-geophys-db-geosoft	Linedata Geosoft format database	165.3 M	Read me
Download gpr2016_001_bonnifield-geophys-grids-geosoft	Gridded data Geosoft format	84.6 M	Read me
Download gpr2016_001_bonnifield-geophys-grids-ermapper	Grid ERS files	84.4 M	Read me
Download gpr2016_001_bonnifield-geophys-kmz	Google Earth files	851.6 K	Read me
Download gpr2016_001_bonnifield-geophysics-images	Georeferenced raster files	9.4 M	Read me
Download gpr2016_001_bonnifield-geophys-documents	Adobe PDF files	21.5 M	Read me
Download gpr2016_001_bonnifield-geophys-maps-pdf-format	Adobe PDF files	136.6 M	Read me
Download gpr2016_001_bonnifield-geophys-profiles-stacked	Adobe PDF files	146.6 M	Read me
Download gpr2016_001_bonnifield-geophys-ascii-data	ASCII tabular files	158.9 M	Read me

Publications

GPR 2016-1. Bonnifield mining district electromagnetic and magnetic airborne geophysical survey data compilation. Supersedes GPR 2007-1, GPR 2007-1-1A, GPR 2007-1-1B, GPR 2007-1-1C, GPR 2007-1-2A, GPR 2007-1-2B, GPR 2007-1-3A, GPR 2007-1-3B, GPR 2007-1-4A, and GPR 2007-1-4B.
GPR 2007-1. Line, grid, and vector data, and plot files for the airborne geophysical survey of part of the Bonnifield mining district, interior Alaska.