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

Publications

GPR 2019-23. Ruby electromagnetic and magnetic airborne geophysical survey data compilation. Supersedes PDF 98-10, PDF 98-11, PDF 98-12, PDF 98-13, PDF 98-14, PDF 98-15, PDF 98-16, PDF 98-17A, PDF 98-17B, PDF 98-17C, PDF 98-17D, PDF 98-17E, PDF 98-17F, PDF 98-17G, PDF 98-17H, PDF 98-30, PDF 98-31, RI 98-4, RI 98-5, and RI 98-6.
PDF 98-30. CD-ROM containing gridded files and section lines of 1997 geophysical survey data for Ruby area, central Alaska.
PDF 98-17A. Total field magnetics and detailed electromagnetic anomalies of the Ruby area, central Alaska, part of southeastern C-6 quadrangle.
PDF 98-12. Total field magnetics and electromagnetic anomalies of the Ruby area, central Alaska.
PDF 98-15. Portfolio of aeromagnetic and resistivity maps of the Ruby area, central Alaska.
PDF 98-16. Project report of the 1997 geophysical survey data for Ruby area, central Alaska.
PDF 98-11. Total field magnetics and electromagnetic anomalies of the Ruby area, central Alaska (clear diazo film version).
PDF 98-10. Flight lines of the Ruby area, central Alaska.
PDF 98-13. 900 Hz coplanar resistivity of the Ruby area, central Alaska.
PDF 98-14. 7200 Hz coplanar resistivity of the Ruby area, central Alaska.
PDF 98-17B. Total field magnetics and detailed electromagnetic anomalies of the Ruby area, central Alaska, part of Ruby southwestern C-5 quadrangle.
PDF 98-17C. Total field magnetics and detailed electromagnetic anomalies of the Ruby area, central Alaska, part of Ruby northeastern B-6 quadrangle.
PDF 98-17D. Total field magnetics and detailed electromagnetic anomalies of the Ruby area, central Alaska, part of Ruby northwestern B-5 quadrangle.
PDF 98-17E. Total field magnetics and detailed electromagnetic anomalies of the Ruby area, central Alaska, part of Ruby southeast B-6 and northeast A-6 quadrangles.
PDF 98-17F. Total field magnetics and detailed electromagnetic anomalies of the Ruby area, central Alaska, part of the Ruby southwest B-5 and northwest A-5 quadrangles.
PDF 98-17G. Total field magnetics and detailed electromagnetic anomalies of the Ruby area, central Alaska, part of the Ruby east-central A-6 quadrangle.
PDF 98-17H. Total field magnetics and detailed electromagnetic anomalies of the Ruby area, central Alaska, part of the Ruby west-central A-5 quadrangle.
PDF 98-31. CD-ROM containing profile and gridded data and section lines of 1997 geophysical survey data for Ruby area, central Alaska.
RI 98-4. Total field magnetics of the Ruby area, central Alaska.
RI 98-5. 900 Hz coplanar resistivity of the Ruby area, central Alaska.
RI 98-6. 7200 Hz coplanar resistivity of the Ruby area, central Alaska.