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CHAPTER 2: ADVANCES IN APPLICATIONS

By
H.O. Seigel
H.O. Seigel
*
H. O. Seigel, Scintrex Limited, Concord, Ontario, Canada
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A. W. Howland-Rose
A. W. Howland-Rose
A. W. Howland-Rose, Scintrex Pty. Ltd., Killarney Heights, New South Wales, Autralia
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Ian M. Johnson
Ian M. Johnson
*
Scintrex Limited, Toronto, Ontario, Canada
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William Frangos
William Frangos
*
AURIGA, INC., Salt Lake City, Utah
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R. Ehrat
R. Ehrat
*
Scintrex Limited, 222 Snidercroft Road, Concord, Ontario, Canada L4K lB5.
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I. Brcic
I. Brcic
*
Scintrex Limited, 222 Snidercroft Road, Concord, Ontario, Canada L4K lB5.
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W.H. Meyer
W.H. Meyer
*
Teleco Oilfield Services, 105 Pondview Drive, Meriden, CT 06450. Formerly with Exxon Minerals Company, Houston, TX.
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J.E. Hanneson
J.E. Hanneson
*
Western Mining Corporation Limited, Fitzgerald Road, Pasadena, South Australia; formerly Geophysics/Geochemistry Section, Ontario Geological Survey, 77 Grenville St., Toronto, M7A lW4.
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Gerald W. Hohmann*
Gerald W. Hohmann*
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A.C. Tripp
A.C. Tripp
*
University of Utah Research Institute, Earth Science Laboratory, 391 Chipeta Way, Suite A, Salt Lake City, Utah 84108-1295
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J.D. Klein
J.D. Klein
ARCO Oil and Gas Co., 2300 W. Plano Parkway, Plano, Texas 75075
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M.O. Halverson
M.O. Halverson
§
520 Kentucky Lane, McKinney, Texas 75069
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J. Kingman
J. Kingman
**
17424 Calla Dr., Dallas, Texas 75252
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T.W. Grant
T.W. Grant
‡‡
Geology and Geophysics Dept., University of Utah, Salt Lake City, Utah 84112
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Published:
January 01, 1990

The magnetic induced polarization (MIP) method determines the variation of the induced polarization and resistivity of the earth through measurements of the magnetic field associated with galvanic current flow in the earth, rather than the electric field, as in the traditional induced polarization (IP) or electrical induced polarization (EIP) method. Important differences between the MIP and EIP methods are evident in field practice, mathematical theory, and field results. For example, the MIP method is insensitive to horizontal layering in the earth and reflects only lateral variations in its electrical properties. MIP also provides an enhanced ability to detect the presence of bodies of anomalous electrical properties even through a highly conducting surface layer. For this reason the MIP methods primary application is in regions of highly conducting (e.g., saline) overburden or weathered rock, such as in Australia. MIP responses tend to be more complex and varied in pattern than responses normally encountered in EIP measurements. For example, polarity reversals are the rule in MIP but are rarely encountered in EIP. MIP employs high-sensitivity component magnetometers as basic sensors. These are small relative to the length of the electric dipole sensors normally employed in EIP, and, therefore, provide relatively higher geometric resolving power.

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Contents

Investigations in Geophysics

Induced Polarization: Applications and Case Histories

James B. Fink
James B. Fink
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Ben K. Sternberg
Ben K. Sternberg
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Edgar O. McAlister
Edgar O. McAlister
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W. Gordon Wieduwilt
W. Gordon Wieduwilt
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Stanley H. Ward
Stanley H. Ward
Special editor
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Society of Exploration Geophysicists
Volume
4
ISBN electronic:
9781560802594
Publication date:
January 01, 1990

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