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GEOREF RECORD

The historical development of the magnetic method in exploration

M. N. Nabighian, V. J. S. Grauch, R. O. Hansen, T. R. LaFehr, Y. Li, J. W. Peirce, J. D. Phillips and M. E. Ruder
The historical development of the magnetic method in exploration
Geophysics (November 2005) 70 (6): 33ND-61ND

Abstract

The magnetic method, perhaps the oldest of geophysical exploration techniques, blossomed after the advent of airborne surveys in World War II. With improvements in instrumentation, navigation, and platform compensation, it is now possible to map the entire crustal section at a variety of scales, from strongly magnetic basement at regional scale to weakly magnetic sedimentary contacts at local scale. Methods of data filtering, display, and interpretation have also advanced, especially with the availability of low-cost, high-performance personal computers and color raster graphics. The magnetic method is the primary exploration tool in the search for minerals. In other arenas, the magnetic method has evolved from its sole use for mapping basement structure to include a wide range of new applications, such as locating intrasedimentary faults, defining subtle lithologic contacts, mapping salt domes in weakly magnetic sediments, and better defining targets through 3D inversion. These new applications have increased the method's utility in all realms of exploration--in the search for minerals, oil and gas, geothermal resources, and groundwater, and for a variety of other purposes such as natural hazards assessment, mapping impact structures, and engineering and environmental studies.


ISSN: 0016-8033
EISSN: 1942-2156
Coden: GPYSA7
Serial Title: Geophysics
Serial Volume: 70
Serial Issue: 6
Title: The historical development of the magnetic method in exploration
Affiliation: Colorado School of Mines, Golden, CO, United States
Pages: 33ND-61ND
Published: 200511
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 290
Accession Number: 2006-011173
Categories: Applied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Includes appendices
Illustration Description: illus.
S44°00'00" - S10°00'00", E113°00'00" - E154°00'00"
N60°00'00" - N84°00'00", W136°00'00" - W102°00'00"
Secondary Affiliation: U. S. Geological Survey, USA, United StatesPRJ, USA, United StatesGEDCO, USA, United StatesWintermoon Geotechnologies, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 200606
Program Name: USGSOPNon-USGS publications with USGS authors
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