Regional magnetic and gravity features of the Gibson Dome area and surrounding region, Paradox Basin, Utah : a preliminary report

Hildenbrand, T. G.; Kucks, R. P.

Abstract:

Analyses of regional gravity and magnetic anomaly maps have been carried out to assist in the evaluation of the Gibson Dome area as a possible repository site for high-level radioactive waste. Derivative, wavelength-filtered, and trend maps were compiled to aid in properly locating major geophysical trends corresponding to faults, folds, and lithologic boundaries. The anomaly maps indicate that Paradox Basin is characterized by a heterogeneous Precambrian basement, essentially a metamorphic complex of gneisses and schist intruded by granitic rocks and mafic to ultramafic bodies. Interpreted Precambrian structures trend predominantly northwest and northeast although east-west trending features are evident. Prominent gravity lows define the salt anticlines. Structural and lithologic trends in the Gibson Dome area are closely examined. Of greatest interest is a series of circular magnetic highs trending west-northwest into the Gibson Dome area. Further study of the exact definition and geologic significance of this series of anomalies is warranted.

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USGS Numbered Series

ProdID:

9477

Citation Author:

Hildenbrand, T. G.; Kucks, R. P.

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ENGLISH

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34 leaves :ill., maps ;28 cm.

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U.S. Geological Survey,

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Open-File Report

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OFR

Citation Series Number:

83-359

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Regional magnetic and gravity features of the Gibson Dome area and surrounding region, Paradox Basin, Utah : a preliminary report; 1983; OFR; 83-359; Hildenbrand, T. G.; Kucks, R. P.

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1983

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citation/reference

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Regional magnetic and gravity features of the Gibson Dome area and surrounding region, Paradox Basin, Utah : a preliminary report; 1983; OFR; 83-359; Hildenbrand, T. G.; Kucks, R. P.