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Dissertation/Thesis Abstract

Detailed lithostratigraphic characterization of Chico Martinez Creek, California
by Mosher, Annie, M.S., California State University, Long Beach, 2013, 130; 1527400
Abstract (Summary)

A 6012-foot Monterey Formation succession at Chico Martinez Creek, San Joaquin basin, is characterized at high spatial resolution by spectral gamma-ray data in 2- foot increments, 5-foot lithologic descriptions, and qualitative XRD and FTIR analysis. Based on these data, the 4 Monterey members–the Gould, Devilwater, McDonald and Antelope shales–are subdivided into 7 distinctive lithofacies. New paleomagnetic data, combined with industry-provided biostratigraphy establishes a chronostratigraphic framework and allows determination of linear sediment accumulation rates. Condensed sedimentation at the onset of McDonald deposition (~14 Ma) is also observed in correlative members in the Pismo, Santa Maria and Santa Barbara basins. This regional event is associated with eustatic regression from the Mid-Miocene highstand related to formation of the East Antarctic Ice Sheet and ongoing thermotectonic basin subsidence. A surge in linear sediment accumulation rates in the siliceous upper McDonald and Antelope (~10.4 Ma) is attributed to a regional increase in diatom productivity.

Indexing (document details)
Advisor: Behl, Richard
School: California State University, Long Beach
School Location: United States -- California
Source: MAI 52/05M(E), Masters Abstracts International
Subjects: Petroleum Geology, Sedimentary Geology
Publication Number: 1527400
ISBN: 978-1-303-76675-6
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