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Gravity and Magnetic Study of the Southern Chocolate Mountains Region, Southeastern California: Possible Extension of the Mesquite Gold Mine

By
K. L. Mickus
K. L. Mickus
Department of Geosciences, Southwest Missouri State University, Springfield, Missouri, USA
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Published:
January 01, 1998

Abstract

Gravity and magnetic data are used to determine the possible location of detachment fault-related upper-plate tilt blocks that may contain ore bodies in Jurassic gneisses similar to or associated with the Mesquite gold mine of southeastern California. Residual gravity and magnetic anomaly maps show the possible location of several of these tilt blocks buried beneath Tertiary and Quaternary sedimentary rocks north of the Chocolate Mountains. Gravity models constructed along profiles northeast of the Mesquite Mine, with detailed gravity data and constrained by surface density measurements and nearby seismic reflection profiles, indicate that the proposed tilt blocks containing the possible ore bodies in Jurassic gneiss lie between 0.05 and 0.20 km beneath the earth's surface.

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Contents

Society of Exploration Geophysicists Geophysical References Series

Geologic Applications of Gravity and Magnetics: Case Histories

Richard I. Gibson
Richard I. Gibson
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Patrick S. Millegan
Patrick S. Millegan
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Society of Exploration Geophysicists
Volume
8
ISBN electronic:
9781560801832
Publication date:
January 01, 1998

GeoRef

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