| Abstract: | Recently recovered archival levelling data from southwestern Arizona and adjacent parts of California compel major revisions in the configuration and interpretation of the southern California uplift, both at its culmination and following its partial collapse. Re-examination of the older vertical-control record indicates that similar modifications may be equally appropriate in any reconsideration of the early-20th-century analogue of the southern California uplift. The chief changes in our earlier reconstructions appear as a sharply diminished isobase gradient south of Cottonwood Pass, dramatically reduced tectonic subsidence centering on the Salton Sea, and short-lived uplift of of at least 0.3 m at the latitude of El Centro. A newly refined qualitative interpretation of the data implies contraction and decoupling at the base of the seismogenic zone, in conjunction with right-stepping movement and extension between an en echelon transform pair through the Salton Basin. -from Authors |
| Genre: | Article |
| ProdID: | 70016909 |
| Citation Author: | Castle, R. O.; Gilmore, T. D. |
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| Citation End Page: | 1591 |
| Citation Issue: | 12 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geological Society of America Bulletin |
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| Citation Number Of Pages: | 15 |
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| Citation Search Results Text: | A revised configuration of the southern California uplift; 1992; Article; Journal; Geological Society of America Bulletin; Castle, R. O.; Gilmore, T. D. |
| Citation Start Page: | 1577 |
| Citation Volume: | 104 |
| Citation Year: | 1992 |
| Type: | citation/reference |
| Text: | A revised configuration of the southern California uplift; 1992; Article; Journal; Geological Society of America Bulletin; Castle, R. O.; Gilmore, T. D. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1992 00:00 -0600 |
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