Seismic stratigraphy of the eastern continental shelf of the Wedell Sea, Antarctica

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dc.contributor.advisorClark, Howard C.en_US
dc.contributor.committeeMemberAnderson, John B.en_US
dc.contributor.committeeMemberWegner, R.en_US
dc.creatorRoqueplo, Christine M.en_US
dc.date.accessioned2018-12-18T21:14:52Zen_US
dc.date.available2018-12-18T21:14:52Zen_US
dc.date.issued1983en_US
dc.description.abstractInterpretation of a 1 miles of seismic data, covering the eastern part of the Weddell Sea continental shelf, in Antarctica, reveals a passive margin environment adjacent to the East Antarctic craton. Two major seismic stratigraphic sequences bounded by regional unconformities onlap a highly eroded and possibly faulted acoustic basement. The basement terranes which exhibit high magnetic susceptibilities were tentatively correlated with Mesozoic igneous rocks identified in the Transantarctic Mountains. The older sequence is formed of nearshore deposits which do not contradict the presence of ice on the mainland. The younger sequence, however, exhibits the seismic response expected from glacially derived sediments. The angular unconformity separating both units was probably related to a major (late Oligocene?) drop of sea level, while the erosional event which followed the deposition of the glacial series corresponds to a peak in glacial activity (Pliocene?). Structural framework of the area can only be approached through broad scale studies involving the complex relationships between the East and West Antarctic subcontinents.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent203 ppen_US
dc.identifier.callnoThesis Geol. 1983 Roqueploen_US
dc.identifier.citationRoqueplo, Christine M.. "Seismic stratigraphy of the eastern continental shelf of the Wedell Sea, Antarctica." (1983) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/103874">https://hdl.handle.net/1911/103874</a>.en_US
dc.identifier.digitalRICE1500en_US
dc.identifier.urihttps://hdl.handle.net/1911/103874en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.titleSeismic stratigraphy of the eastern continental shelf of the Wedell Sea, Antarcticaen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentEarth Scienceen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US
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