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Abstract
To add to the regional paleomagnetic data documenting block rotation in eastern California, we determined the age and paleomagnetic rotation of the Broadwell Mesa basalt, a basalt in the Bristol Mountains, CA as part of an effort to constrain the timing and rotation of blocks adjacent to the fault. The east-striking sinistral Broadwell Mesa fault cuts and separates the basalt into two outcrops. An 40Ar/39Ar date from the northern outcrop yields an age of 5.46 ± 0.04 Ma. Two sites consisting of 40 paleomagnetic cores from the basalt indicate the basalt is reversely magnetized and that there has been no significant rotation (< 11º) between the two basalt outcrops.
Study Area
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Analysis of the age and paleomagnetic orientation of the Broadwell Mesa Basalt, Bristol Mountains, CA |
| Year Published | 2017 |
| Language | English |
| Publisher | Desert Studies Center, California State University at Fullerton |
| Contributing office(s) | Geology, Minerals, Energy, and Geophysics Science Center |
| Description | 6 p. |
| Larger Work Title | ECSZ Does It: Revisiting the Eastern California Shear Zone |
| First page | 97 |
| Last page | 102 |
| Conference Title | 2017 Desert Symposium |
| Conference Location | Zzyzx, CA |
| Conference Date | April 2017 |
| Country | United States |
| State | California |
| City | ZZyzx |
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