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National Science Foundation Award #0514526

Caves As Recorders of River Incision, Tectonics, and Landscape Evolution In the Sierra Nevada California

 
Investigator(s): Robert Anderson (PI)
Sponsor: University of Colorado at Boulder, CO 80309 3034926221
Start Date/Expiration Date 2005-01-01 to 2005-12-31 (amended 2005-01-28)
Awarded Amount to Date: $47,290
Abstract: Considerable interest and debate surround the problem of uplift and geomorphic evolution of areas undergoing arc magmatism and arc accretion to continental margins. The Sierra Nevada of California, a deeply eroded remnant of a late Mesozoic magmatic arc, has conventionally been thought to have been uplifted in late Cenozoic time, however this conclusion has been challenged by low temperature geochronologic studies suggesting high relief as early as late Mesozoic. This project will measure river incision rates in the Sierra Nevada by comparing elevations of dated cave deposits with present day river elevations. These data will be incorporated in a model of Sierra landscape evolution in order to provide a test of the competing mutually exclusive hypotheses. Results will be of considerable regional importance and have clear implications on broader issues.
NSF Org: EAR - Division of Earth Sciences
Award Number: 0514526
Award Instrument: Standard Grant
Program Manager: David Fountain
EAR Division of Earth Sciences
GEO Directorate for Geosciences
NSF Program(s): TECTONICS
Field Application(s): Other nsf.applications NEC
Program Reference Code(s): UNASSIGNED, 0000
Program Element Code(s): 1572