| Abstract: | Room temperature, steady-state flow measurements of permeability were conducted on 15 unfractured core samples collected at depths between 270 and 2100 m in the Cajon Pass drillhole. Confining and pore pressures were set to the lithostat and hydrostat for each depth. The first 500 m encountered in the drill hole is composed of sandstones with typically high permeabilities of around 10-17m2. The crystalline rocks between 500 and 2100 m show a systematic decrease in permeability with depth from 10-19 to less than 10-21m2. These values are particularly low relative to the applied effective stresses of only 10-30 MPa, and may be a result of the extensive crack healing that was observed in most samples. -Authors |
| Genre: | Article |
| ProdID: | 70014367 |
| Citation Author: | Morrow, C.; Byerlee, J. |
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| Citation End Page: | 1036 |
| Citation Issue: | 9 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geophysical Research Letters |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | Permeability of rock samples from Cajon Pass, California; 1988; Article; Journal; Geophysical Research Letters; Morrow, C.; Byerlee, J. |
| Citation Start Page: | 1033 |
| Citation Volume: | 15 |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | Permeability of rock samples from Cajon Pass, California; 1988; Article; Journal; Geophysical Research Letters; Morrow, C.; Byerlee, J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1988 00:00 -0600 |
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