Advection of Crust through a Restraining Bend at Mass Flux Steady State in the Santa Cruz Mountains, CA, Inferred from Cosmogenic Radionuclide Denudation Rates and Topographic Analysis
Abstract/Contents
- Abstract
- The asymmetric topography of the Santa Cruz Mountains, CA has been ascribed to the advection of material southwest of the right-lateral San Andreas Fault through a restraining bend, while material northeast of the fault remains trapped in the zone of contraction resulting from the fault's restraining geometry. This model predicts a rapid decrease in rock uplift rates with distance along the fault from the restraining bend, which is observed in rock uplift recorded by marine terraces along the Santa Cruz and San Mateo County coast. Here, I present eighteen cosmogenic radionuclide (CRN) denudation rates from basins southwest of the fault, which decrease systematically from 0.60 to 0.15 mm/yr with distance north of the bend. These rates capture the expected spatial distribution of rock uplift rates associated with the advection model, and their magnitude falls in the same range as those recorded by coastal marine terraces.
Description
| Type of resource | text |
|---|---|
| Date created | May 2010 |
Creators/Contributors
| Author | Guomundsdottir, Maria Helga |
|---|---|
| Primary advisor | Hilley, George E. |
| Advisor | Graham, Stephan A. |
| Degree granting institution | Stanford University, Department of Geological and Environmental Sciences |
Subjects
| Subject | School of Earth Energy & Environmental Sciences |
|---|---|
| Subject | topography |
| Subject | Santa Cruz Mountains |
| Genre | Thesis |
Bibliographic information
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- Theses courtesy of Stanford University Libraries. If you have questions, please contact the Branner Earth Science Library & Map Collections at brannerlibrary@stanford.edu.
Preferred citation
- Preferred Citation
- Guomundsdottir, Maria Helga. (2010). Advection of Crust through a Restraining Bend at Mass Flux Steady State in the Santa Cruz Mountains, CA, Inferred from Cosmogenic Radionuclide Denudation Rates and Topographic Analysis. Stanford Digital Repository. Available at: http://purl.stanford.edu/mw754vs4032
Collection
Undergraduate Honors Theses, Doerr School of Sustainability
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