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A DISCUSSION ON IP INTERMEDIATE-GRADIENT ηs CURVE UNDER THE CONDITION OF NON-HORIZONTALUNIFORM POLARIZATION |
Dai Xueli |
810 Party of East China Geological Exploration Cororation, China National Nonferrous Metals Industry Corporation |
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Abstract In practical work, the relative position between the blind orebody and thetwo power-supply electrodes of the intermediate-gradient facility not distant fromthe orebody frequently makes the blind orebody somewhat under the conditionof non-horizontal uniform polarization. This causes the obtained ηs curve and theconnections of the ηs curve formed by movement of the power-supply electrodesto be distorted to some extent.Through simulating the usually-adopted IPintermediate-gradient facilityand taking volume polarization as an example,the present paper makes an ana-lysis and discussion on the above-mentioned distortion by calculating the inter-mediate-gradient ηs curve and its connections with the formula of point powersource. In addition, it mentions some problems that are worth noticing in proces-sing observed intermediate-gradient ηs data and gives some viewe on IP ηs full-field measurement technique that deserves popularization.
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Published: 24 August 1986
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