Dissertation/Thesis Abstract

The hydraulic connectivity, perennial warming and relationship to seismicity of the Davis-Schrimpf Seep Field, Salton Trough, California from new and recent temperature time-series
by Rao, Amar P., M.S., California State University, Long Beach, 2016, 115; 10240644
Abstract (Summary)

The Davis-Schrimpf Seep Field is a cluster of about 50 transtension-related geothermal seeps in the Imperial Valley, southeastern California. Five temperature time-series were collected from four features and compared to one another, against prior time-series, and to local seismicity. Loggers placed in separate vents within one seep returned moderate anti-correlation. Vents may selectively clog and unclog. Clogging frequencies explaining the observed level of negative correlation were given. Loggers placed in the same vent produced 87-92% positive correlation. It is therefore likely that the vast majority of temperature data measured with loggers possesses meaningful accuracy. Loggers placed in separate seeps exhibited correlation close to or greater than the statistically significant 60% threshold. I propose two lineaments provide a hydraulic connection between these seeps. Two Mw>3.0 earthquake swarms, including one Mw>4.0 event, within 24 kilometers showed possible linkage with >5 degree Celsius temperature perturbations. Seepage warmed 14.5-36.8 degrees Celsius over 5-7 years.

Indexing (document details)
Advisor: Onderdonk, Nathan W.
Commitee: Behl, Richard J., Francis, Robert D.
School: California State University, Long Beach
Department: Geological Sciences
School Location: United States -- California
Source: MAI 56/03M(E), Masters Abstracts International
Subjects: Geology, Plate Tectonics, Geochemistry
Keywords: Geothermal energy, Hydrothermal seep, Imperial Valley, Mud volcanism, Salton sea, San Andreas Fault
Publication Number: 10240644
ISBN: 978-1-369-45354-6
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