Eocene Origin of Owens Valley, California
AbstractBedrock (U-Th)/He data reveal an Eocene exhumation difference greater than four kilometers athwart Owens Valley, California near the Alabama Hills. This difference is localized at the eastern fault-bound edge of the valley between the Owens Valley Fault and the Inyo-White Mountains Fault. Time-temperature modeling of published data reveal a major phase of tectonic activity from 55 to 50 Ma that was of a magnitude equivalent to the total modern bedrock relief of Owens Valley. Exhumation was likely accommodated by one or both of the Owens Valley and Inyo-White Mountains faults, requiring an Eocene structural origin of Owens Valley 30 to 40 million years earlier than previously estimated. This analysis highlights the importance of constraining the initial and boundary conditions of geologic models and exemplifies that this task becomes increasingly difficult deeper in geologic time. View Full-Text
- Supplementary File 1:
PDF-Document (PDF, 1121 KB)
Share & Cite This Article
Sousa, F.J. Eocene Origin of Owens Valley, California. Geosciences 2019, 9, 194.
Sousa FJ. Eocene Origin of Owens Valley, California. Geosciences. 2019; 9(5):194.Chicago/Turabian Style
Sousa, Francis J. 2019. "Eocene Origin of Owens Valley, California." Geosciences 9, no. 5: 194.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.