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dc.contributor.advisor Anderson, John B.
dc.creatorHerron, Margaret Jane
dc.date.accessioned 2009-06-04T00:25:46Z
dc.date.available 2009-06-04T00:25:46Z
dc.date.issued 1988
dc.identifier.urihttps://hdl.handle.net/1911/13288
dc.description.abstract Piston cores and single-channel seismic profiles were collected from the western South Orkney Plateau to investigate glacial history, survey the seismic stratigraphy, and test the feasibility of paleoceanographic interpretation as a site survey for O.D.P Leg 113 drilling operations. Data reveal evidence for past grounded ice to 240 meters depth, and expanded floating ice cover over the entire plateau. Paleoceanographic interpretation is difficult because nearly 75% of slope cores are affected by sediment gravity flow. All dip-oriented seismic lines show large-scale slumping. Surface sample textural data indicate that wind-driven currents are redistributing sediments in a predictable pattern to about 450 meters depth. Total grain size analyses are necessary to differentiate ice-rafted-debris from other sands. Seismic data support previous interpretations of a passive margin setting, and show up to three seismic sequences within sediment fill on the margin and plateau.
dc.format.extent 267 p.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectGeology
Physical oceanography
Paleontology
dc.title Marine geology and geophysics of the western South Orkney Plateau, Antarctica: Implications for Quaternary glacial history, tectonics, and paleoceanography
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Earth Science
thesis.degree.discipline Natural Sciences
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Arts
dc.identifier.citation Herron, Margaret Jane. "Marine geology and geophysics of the western South Orkney Plateau, Antarctica: Implications for Quaternary glacial history, tectonics, and paleoceanography." (1988) Master’s Thesis, Rice University. https://hdl.handle.net/1911/13288.


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