Skip to Main Content
Book Chapter

Electrical Methods in Mining Geophysics

By
Gerald W. Hohmann
Gerald W. Hohmann
Geology and Geophysics Department, University of Utah, Salt Lake City, Utah 84112
Search for other works by this author on:
Stanley H. Ward
Stanley H. Ward
Geology and Geophysics Department, University of Utah, Salt Lake City, Utah 84112
Search for other works by this author on:
Published:
January 01, 1981

Abstract

Electrical methods of geophysics are fundamental in mineral exploration because they can directly detect and delineate conductive sulfide minerals. Electromagnetic methods are used in exploring for massive sulfides because of their high conductivity. The introduction of induced polarization in the 1950s represented a major advance in mining geophysics by making possible the direct detection of disseminated sulfides.

Both induced polarization and electromagnetic methods have benefited from research directed at achieving greater resolution and greater depth of exploration. The major advances in induced polarizations have been: digital instrumentation for greater accuracy, techniques for eliminating or reducing electromagnetic coupling effects, and numerical modeling techniques for improved interpretation. In electromagnetics numerical and physical-scaled modeling has led to the recognition of the importance of current channeling and to improved interpretation aids. Broadband, multicoil measurements provide better conductor discrimination in both ground and airborne applications. Time domain electromagnetics is assuming greater importance because of its simplicity of interpretation and capabilities for deep exploration.

You do not currently have access to this article.

Figures & Tables

Contents

Economic Geology Publishing Company

Seventy-Fifth Anniversary Volume

Brian J. Skinner
Brian J. Skinner
Search for other works by this author on:
Society of Economic Geologists
ISBN electronic:
9781934969533
Publication date:
January 01, 1981

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal