Dissertation/Thesis Abstract

Gravity Investigation of a Normal Fault in Southern St. Landry Parish, Louisiana
by Bennett, Randall, M.S., University of Louisiana at Lafayette, 2018, 50; 10981215
Abstract (Summary)

Previous work conducted by Kushiyama (2010) identified a relative gravity profile with an abnormal anomaly across a normal fault. The relative gravity should have decreased when crossing from the upthrown side to the downthrown side. Additional relative gravity data were collected and incorporated with the existing data to create an improved gravity anomaly map. The map shows that the gravity generally increases from the southwest to the northeast in the study area. In two areas where profiles cross the fault at nearly a perpendicular angle, the fault is clearly visible and interpretable from the gravity data. However, along Chris Road, that is not the case. This is most likely caused by an underlying salt ridge (Varvaro, 1958). The mobilization of this salt upwards through more dense strata might be the cause of the low gravity effect of the upthrown side of the fault along Chris Road.

Indexing (document details)
Advisor: Kinsland, Gary
Commitee: Gottardi, Raphael, Richter, Carl
School: University of Louisiana at Lafayette
Department: Geology
School Location: United States -- Louisiana
Source: MAI 58/05M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Geology, Geophysics
Keywords: Anomaly, Fault, Gravity, Louisiana, Worden
Publication Number: 10981215
ISBN: 978-1-392-04205-2
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