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Geyser's magma chamber, California: constraints from gravity data, density measurements, and well information

By:
,
Edited by:
Anon

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Abstract

A new crustal model based on isostatic residual gravity, geologic mapping, well information, and density measurements shows that the high-gradient parts of the residual gravity anomaly can be explained in terms of lithologic variations within the upper 7 km of the crust, consistent with the upper-crustal framework of the area. This conclusion does not rule out the presence of a magma chamber at lower crustal depths; the broad aspects of the gravity anomaly support the presence of low-density partial melting at 15 to 20 km depth, consistent with magnetotelluric soundings and other geophysical measurements.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Geyser's magma chamber, California: constraints from gravity data, density measurements, and well information
ISBN:
0934412715
Volume
17
Year Published:
1993
Language:
English
Publisher:
Publ by Geothermal Resources Council
Publisher location:
Davis, CA, United States
First page:
227
Last page:
233
Number of Pages:
7
Conference Title:
Proceedings of the 1993 Annual Meeting on Utilities and Geothermal: An Emerging Partnership
Conference Location:
Burlingame, CA, USA
Conference Date:
10 October 1993 through 13 October 1993