Browsing Electronic Theses, Dissertations, and Records of Study (2002– ) by Author "Yancey, Thomas E"
Now showing items 1-4 of 4
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Berti, Debora (2022-12-12)In this dissertation, I apply a suite of electron microscopy techniques to investigate aspects of aqueous alteration of volcanic glass (ash and basalt), in coastal settings. The first chapter investigates the fate of ...
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Depugh, Meagan Elizabeth (2019-07-11)We used oxygen and carbon isotopic compositions of Permian-aged brachiopods from Argentina, Western Australia, Arctic Canada, and West Spitsbergen to create high-resolution snapshots of the seasonal temperature and salinity ...
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Tephrochronology and Stratigraphy of Eocene and Oligocene Volcanic Ashes of East and Central Texas Heintz, Mindi (2013-12-02)Sedimentary formations of east and central Texas contain many Eocene to Oligocene volcanic ash beds, with some of the younger ash layers containing hydrated but otherwise unaltered glass shards. This study analyzed samples ...
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Wahl, Preston James (2015-06-02)Sediment delivery to Texas and the northwestern Gulf of Mexico during the Early Paleogene represents an initial cycle of tectonic-influenced deposition that corresponds with the timing of late Laramide uplift. Sediments ...