Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Patent
1981-11-23
1987-08-11
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
G01V 308, G01V 338
Patent
active
046864768
ABSTRACT:
In magnetotelluric exploration, plots of equal values of the phase of the determinant of the impedance tensor relating the earth's electric fields to the earth's magnetic fields are plotted to distinguish the structure of resistivity anomalies and separate near surface and deep anomalies. Plots of equal values of the absolute value of the determinant of the impedance tensor are also made. These plots display the dimensionality of the anomaly and produce a better display of anomalies which are at depth.
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Gilman Michael G.
Hager Jr. George W.
McKillop Alexander J.
Mobil Oil Corporation
Strecker Gerard R.
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