| Abstract: | We predict gravity from a three-dimensional Vp model of the upper crust and compare it to the observed isostatic residual gravity field. In general this comparison shows that the isostatic residual gravity field reflects the density variations in the upper to middle crust. Both data sets show similar density variations for the upper crust in areas such as the Peninsular Ranges and the Los Angeles basin. Both show similar variations across major faults, such as the San Andreas and Garlock faults in the Mojave Desert. The difference between the two data sets in regions such as the Salton Trough, the Eastern California Shear Zone, and the eastern Ventura basin (where depth to Moho is <30 km), however, suggests high-density middle to lower crust beneath these regions. Hence the joint interpretation of these data sets improves the depth constraints of crustal density variations. |
| Genre: | Article |
| ProdID: | 70023273 |
| Citation Author: | Langenheim, V. E.; Hauksson, E. |
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| Citation End Page: | 3090 |
| Citation Issue: | 16 |
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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: | Comparision between crustal density and velocity variations in Southern California; 2001; Article; Journal; Geophysical Research Letters; Langenheim, V. E.; Hauksson, E. |
| Citation Start Page: | 3087 |
| Citation Volume: | 28 |
| Citation Year: | 2001 |
| Type: | citation/reference |
| Text: | Comparision between crustal density and velocity variations in Southern California; 2001; Article; Journal; Geophysical Research Letters; Langenheim, V. E.; Hauksson, E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1029/2001GL013392 |
| Date Other: | Mon, 1 Jan 2001 00:00 -0600 |
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