Identifier

etd-06042004-120413

Degree

Master of Science (MS)

Department

Geology and Geophysics

Document Type

Thesis

Abstract

Recent advances in Autonomous Underwater Vehicle (AUV) technology have revolutionized the positioning and accuracy of high-resolution deep sea mapping tools. Geologic hazard and engineering surveys by AUV’s are producing high-resolution data sets of a quality that has never before been seen. Three-dimensional (3D) seismic data, though traditionally used for only deep subsurface mapping of large areas, is now being reprocessed at a higher resolution and utilized in well site investigations and geologic hazard assessments. This study makes a comparison between a 3D seismic survey and an AUV high-resolution survey in order to determine the strengths and weaknesses of both of these data. The study area, located in the central eastern portion of the Green Canyon Area, Gulf of Mexico, hosts several geologic features that should be easily mapped with both media such as: major and minor faulting, a mud volcano, mud vents, mudflows, hardgrounds, slumps, and gullies. The comparison of the 3D seismic survey and the high-resolution survey will more clearly point out the strengths and weaknesses of these two types of seafloor data, which are used for geohazards assessments.

Date

2004

Document Availability at the Time of Submission

Release the entire work immediately for access worldwide.

Committee Chair

Arnold H. Bouma

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