38 separate domes and flows of phenocryst-poor, high-silica rhyolite of similar major element chemical composition were erupted over the past 1My from vents arranged in a crudely S-shaped array atop a granitic horst in the Coso Range, California. Most of the extrusions are probably less than about 0.3My old. The central part of the rhyolite field is characterized by high heat flow, low apparent resistivity, and substantial fumarolic activity indicative of an active geothermal system.
Citation Information
Publication Year | 1980 |
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Title | Distribution of Quaternary rhyolite domes of the Coso Range, California: implications for extent of the geothermal anomaly. |
DOI | 10.1029/JB085iB05p02425 |
Authors | C. R. Bacon, W. A. Duffield |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Journal of Geophysical Research |
Index ID | 70012383 |
Record Source | USGS Publications Warehouse |
USGS Organization | Volcano Science Center |