The major purpose of this effort is to detect new faults which may indicate fracture systems with potential for gas production from the black shales. The method is to gather surface geophysical data, principally resistivity, to test Landsat lineaments as faults. A second purpose is to develop an economical method of confirming remotely sensed lineaments as faults or fractures which can be applied in this region and perhaps be extended to the eastern part of the United States. To attain the goal of this work, the planned approach was to use high-powered (3KW) resistivity measurements in a dipole-dipole configuration to ...
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The major purpose of this effort is to detect new faults which may indicate fracture systems with potential for gas production from the black shales. The method is to gather surface geophysical data, principally resistivity, to test Landsat lineaments as faults. A second purpose is to develop an economical method of confirming remotely sensed lineaments as faults or fractures which can be applied in this region and perhaps be extended to the eastern part of the United States. To attain the goal of this work, the planned approach was to use high-powered (3KW) resistivity measurements in a dipole-dipole configuration to penetrate deeply - a rather expensive procedure. Toward this end it was decided to make a preliminary investigation using a scintillation counter in addition to a low-current resistivity measuring instrument. The scintillation counter gave more definite indication of known faults than did the resistivity measurements. The South Graham, North Graham, and the fault at Highways 403-269, Kentucky were all indicated on one traverse by scintillation measurements, but only the North Graham fault was indicated by resistivity, and the resistivities profile was not conclusive. The reason for the inconclusive resistivity result may have been the fact that the fault zones in this region are often thin, sometimes a matter of a few inches.
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Jackson, P.L.Verification of inferred faults by resistivity analysis. Technical progress report, July 17-October 31, 1981,
report,
January 1, 1981;
United States.
(digital.library.unt.edu/ark:/67531/metadc1070177/:
accessed February 23, 2019),
University of North Texas Libraries, Digital Library, digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.