Accession Number:
AD0739739
Title:
Electrical Properties of the Earth's Crust. A Survey of the Literature.
Descriptive Note:
Final rept. 15 Apr-31 Oct 70,
Corporate Author:
COLORADO SCHOOL OF MINES GOLDEN
Personal Author(s):
Report Date:
1971-11-01
Pagination or Media Count:
156.0
Abstract:
The electrical conductivity of the earth appears to pass through a minimum value at moderate depths, probably between 10 and 20 kilometers. At lesser depths, rocks contain sufficient water-filled void space to be moderately conductive, and at greater depths, increased temperatures again render rocks conductive. The problem of determining the conductivity in this minimum zone is a difficult one. A possible solution lies in the use of electromagnetic coupling measurements for studying this zone in the crust.
Descriptors:
Subject Categories:
- Geology, Geochemistry and Mineralogy