Santa Cruz Island Reserve

18 Nov, 02 AM - 21 Nov, 07 AM

My research proposes to determine the mechanisms and rates at which the Catalina Schist basement was exhumed during the Early to Middle Miocene. The Catalina Schist basement is assumed to makeup much of the basement bedrock in the southern California borderland. Exhumation of the Catalina Schist basement is intepreted by some workers to coincide with the cessation of subduction off southern California and the clockwise rotation of the western Transverse Ranges. I propose to use low-temperature thermochronology on exposures that contain coarse detritus shed from the exhumed basement terrane to determine the timing of exhumation and rates of uplift. Exposures of coarse Catalina Schist detritus are found on many of the Channel Islands and coastal exposures from the Santa Monica Mountains and as far south as Ensendada, Baja California. Studies on Santa Cruz Island will provide an important piece of the puzzle and will be expanded to include other localities to determine spatial and temporal distributions that may reflect mechanisms for exhumation of the Catalina Schist basement. Low-temperature thermochronology on these exposures is important because the Catalina Schist basement that was the source of the detritus has long since eroded away and is observed primarily from borehole and seismic data. The only above surface exposures of the Catalina Schist are found on Catalina Island and the Palos Verdes Peninsula.

Visit #6095 @Santa Cruz Island Reserve

Approved

Under Project # 4684 | Research

Thermochronologic Studies of the Metamorphic Detritus on the Channel Islands

graduate_student - University of California, Santa Barbara

Reservation Members(s)

Grant Yip Nov 18 - 21, 2004 (4 days)
Grant Yip Nov 18 - 21, 2004 (4 days)
Grant Yip Nov 18 - 21, 2004 (4 days)

Reserve Resources(s) | Create Invoice

Dorm 3 Nov 18 - 21, 2004
Jeep 3 Nov 18 - 21, 2004