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dc.creatorMeyer, Matthew Kaelen_US
dc.date.accessioned2012-06-07T15:46:05Z
dc.date.available2012-06-07T15:46:05Z
dc.date.created2001en_US
dc.date.issued2001
dc.identifier.urihttp://hdl.handle.net/1969.1/ETD-TAMU-2001-THESIS-M484en_US
dc.descriptionDue to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item.en_US
dc.descriptionIncludes bibliographical references (leaves 69-71).en_US
dc.descriptionIssued also on microfiche from Lange Micrographics.en_US
dc.description.abstractThe northwestern portion of the Gulf of Mexico continental slope features approximately 90 intraslope basins offshore Texas and Louisiana. Domes of high elevations, sometimes resulting in a difference of 1000 meters from top to bottom, separate these basins. Considering the recent turn of interest to deeper water petroleum prospects, knowledge concerning the surficial sediments in this area is currently of major economic importance. The continental shelf to the north of this region has been studied in great detail due to its vast stores of petroleum. However, the continental slope and rise have received relatively little attention. Recent studies have interpreted a conglomerate of high-resolution seismic data, but very few sediment samples were used for ground truthing. A suite of 182 piston cores from the northwestern continental slope and continental rise were used in this study, with the intent to identify, illustrate and describe the recent sediments unique to that region. In addition, this study set out to identify the depositional environment of that region, and reflect on surface sedimentation patterns, regional and local. In order to achieve these goals, this study employed select geotechnical tests, shear strength measurements, lithologic descriptions, and high-resolution imagery by x-radiography. Utilizing a geographic information system (GIS), this study attempted to provide a digital database of such sediment physical properties, allowing for convenient analysis purposes in the future. The GIS revealed that a veneer of low shear strength, homogenous clay blankets much of the study area. Erosional patterns were not discovered on a regional scale, but local patterns do exist. The shortest cores retrieved in this study came from locations along basin walls where slumps and slides are common. Alaminos, Bryant, and Keathley Canyons are three large, north-south trending systems of valleys and basins that are believed to have transported much sediment to the abyssal plain within relatively recent periods of geologic time. The only silty sediments encountered in this study were retrieved from these three general locations. In general, the study illustrated that highly localized sedimentation environments occur along the continental slope due to the topographic highs and lows in this region.en_US
dc.format.mediumelectronicen_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_USen_US
dc.publisherTexas A&M Universityen_US
dc.rightsThis thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use.en_US
dc.subjectoceanography.en_US
dc.subjectMajor oceanography.en_US
dc.titleSpatial distribution of geotechnical properties in surficial marine sediments-Northwestern slope region, Gulf of Mexicoen_US
dc.typeThesisen_US
thesis.degree.disciplineoceanographyen_US
thesis.degree.nameM.S.en_US
thesis.degree.levelMastersen_US
dc.type.genrethesis
dc.type.materialtexten_US
dc.format.digitalOriginreformatted digitalen_US


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