Transgressive reef morphology evolution: A qualitative and quantitative comparison of Uppermost Pleistocene and Upper Cambrian reefs in offshore and Central Texas (USA)

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dc.contributor.advisorDroxler, André Wen_US
dc.creatorKhanna, Pankajen_US
dc.date.accessioned2019-05-16T20:56:58Zen_US
dc.date.available2019-05-16T20:56:58Zen_US
dc.date.created2017-12en_US
dc.date.issued2017-12-01en_US
dc.date.submittedDecember 2017en_US
dc.date.updated2019-05-16T20:56:58Zen_US
dc.description.abstractUnderstanding the morphological evolution of modern coralgal reefs helps decipher the forcing mechanisms that influence the evolution of ancient carbonate reefs. In this study, a comparison between Uppermost Pleistocene drowned coralgal reefs stretching along the south Texas shelf edge and Upper Cambrian microbial reefs in Mason (Central Texas) is developed. Similarities and differences between the two settings, separated by 500 million years, make it an interesting comparison. Among the major similarities, both settings represent low-latitude, shallow water within the photic zone, shelf edge, mixed carbonate siliciclastic systems, whereas the nature of the two reef builders is the main difference. Forcing mechanisms, among them sea level fluctuations, are well established during last transgression since Last Glacial Maximum and directly tied to the morphological evolution of the Uppermost Pleistocene coralgal reefs. The initial transgression triggered a clear switch from shallow coastal siliciclastics to neritic coralgal reefs on the south Texas shelf edge banks. A similar switch is also observed at the base of the Upper Cambrian microbial reefs where the system changes from mixed carbonate-clastic to pure carbonate system. Based on these comparisons, it is demonstrated that an Upper Cambrian transgression led to the establishment of microbial reefs providing it enough accommodation to grow vertically.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationKhanna, Pankaj. "Transgressive reef morphology evolution: A qualitative and quantitative comparison of Uppermost Pleistocene and Upper Cambrian reefs in offshore and Central Texas (USA)." (2017) Diss., Rice University. <a href="https://hdl.handle.net/1911/105559">https://hdl.handle.net/1911/105559</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/105559en_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.subjectCoral Reefsen_US
dc.subjectMicrobial Reefsen_US
dc.subjectDronesen_US
dc.subjectPhotogrammetryen_US
dc.subjectMultibeam bathymetryen_US
dc.subjectSea-Levelen_US
dc.subjectUppermost Pleistoceneen_US
dc.subjectUpper Cambrianen_US
dc.subjectStromatolitesen_US
dc.subjectMaldivesen_US
dc.subjectSouth Texas Shelfen_US
dc.subjectCarbonatesen_US
dc.subjectCarbonate Sedimentologyen_US
dc.subjectGeomorphologyen_US
dc.subjectTerracesen_US
dc.subjectBacksteppingen_US
dc.subjectSpatial statistical Analysisen_US
dc.titleTransgressive reef morphology evolution: A qualitative and quantitative comparison of Uppermost Pleistocene and Upper Cambrian reefs in offshore and Central Texas (USA)en_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.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
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