| Abstract: | Large teleseismic delays, exceeding 1 second, are found near Mount Hannah in the Clear Lake volcanic field and in the steam-production area at The Geysers. The delays are superimposed on a general delay field of about 0.5 second extending over the volcanic rocks and the steam reservoir. It is postulated that a magma chamber under the surface volcanic rocks with a core of severely molten rock beneath Mount Hannah and a highly fractured steam reservoir probably underlain by partially molten rock at The Geysers are responsible for the observed delays. Both zones extend to depths of 20 kilometers or more. Copyright ?? 1979 AAAS. |
| Genre: | Article |
| ProdID: | 70012520 |
| Citation Author: | Iyer, H. M.; Oppenheimer, D. H.; Hitchcock, T. |
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| Citation End Page: | 497 |
| Citation Issue: | 4392 |
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| Citation Language: | English |
| Citation Larger Work Title: | Science |
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| Citation Number Of Pages: | 3 |
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| Citation Search Results Text: | Abnormal P-wave delays in the geysers-clear lake Geothermal Area, California; 1979; Article; Journal; Science; Iyer, H. M.; Oppenheimer, D. H.; Hitchcock, T. |
| Citation Start Page: | 495 |
| Citation Volume: | 204 |
| Citation Year: | 1979 |
| Type: | citation/reference |
| Text: | Abnormal P-wave delays in the geysers-clear lake Geothermal Area, California; 1979; Article; Journal; Science; Iyer, H. M.; Oppenheimer, D. H.; Hitchcock, T. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1979 00:00 -0600 |
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