Dissertation/Thesis Abstract

Cenozoic kinematics of the Little Pine fault, Santa Maria Basin, California
by Cannon, Michael P., M.S., California State University, Long Beach, 2013, 98; 1527534
Abstract (Summary)

The Little Pine fault (LPF) delineates the northeast margin of the Santa Maria Basin. The basin is inverting due to north-northeast, south-southwest shortening, associated with vertical-axis rotation of the western Transverse Ranges to the south. Slip data collected along the Little Pine fault yielded principle compressive stress directions that are indicative of reverse slip, with minor lateral components that vary along strike of the fault. Slip data collected to the northwest along the Foxen Canyon fault is indicative of right lateral strike-slip. Mapped offsets near Coralles, Happy, and Cachuma canyons indicate 228 meters of reverse offset across the LPF south branch since Pliocene time. The LPF is segmented, with segments exhibiting different histories. Based on mapped offsets of contacts between Miocene units near Foxen canyon, the rate of dextral slip along the Foxen Canyon fault is 0.027 to 0.1 millimeters per year from Miocene to Pliocene.

Indexing (document details)
Advisor: Onderdonk, Nathan W.
Commitee: Behl, Richard J., Kelty, Thomas K.
School: California State University, Long Beach
Department: Geological Sciences
School Location: United States -- California
Source: MAI 52/05M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Geology
Keywords: Santa Ynez Valley, Southern Coast Ranges, Western Transverse Ranges
Publication Number: 1527534
ISBN: 9781303795732
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