Audio-magnetotelluric methods in reconnaissance geothermal explorations

Basic Information
Author: Hoover, D.B., Long, C.L.
Description:An audio-magnetotelluric (AMT) system has been developed by the U.S. Geological Survey for low-cost reconnaissance exploration of geothermal regions. This is an electromagnetic sounding technique in which the scalar or Cagniard resistivity is computed at 12 frequencies logarithmically spaced from 7.~ to J8 600 Hz. Our system uses natural source fields except at the two upper frequencies of 10200 and 18600 Hz where artificial VLF sources are available. As a reconnaissance technique we use AMT surveys in conjunction with regional gravity, magnetic, and telluric surveys.
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Author Contact Information
Distributor Contact Information
Organization Name: University of Idaho
Street: Morrill Hall, University of Idaho
City: Moscow
State: ID
Zip: 83844-3014
Phone: 208-885-7991
Geographic Extent
North Bounding Latitude: 49
South Bounding Latitude: 42
East Bounding Longitude: -111
West Bounding Longitude: -117.25