Cenozoic stratigraphy of Rim Rock country, Trans-Pecos, Texas

dc.contributor.advisorDeFord, Ronald K. (Ronald Kinnison), 1902-1994
dc.creatorSchulenberg, John Theodore, 1930-en
dc.date.accessioned2011-06-23T21:33:56Zen
dc.date.available2011-06-23T21:33:56Zen
dc.date.issued1958-01en
dc.descriptiontexten
dc.description.abstractThe Rim Rock country, on the western edge of a vast Trans-Pecos Texas lava field, received thousands of feet of volcanic material during the Tertiary Period. Although pyroclastic rocks predominate, several flow rocks form the most distinctive stratigraphic markers. Dikes, sills, and laccoliths were emplaced following the cessation of extrusive igneous activity. The Vieja Group, comprising the oldest volcanic strata, has been tentatively assigned to the Chadronian Stage (Lower Oligocene). Late Tertiary block-faulting created an intermontane area which subsequently received thick bolson deposits. Recent climatic fluctuations have resulted in the development of gravel-capped terraces along the Rio Grande.en
dc.description.departmentGeological Sciencesen
dc.format.mediumelectronicen
dc.identifier.urihttp://hdl.handle.net/2152/11943en
dc.language.isoengen
dc.rightsCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en
dc.subjectGeology, Stratigraphic--Cenozoicen
dc.subjectGeology--Trans-Pecos (Tex. and N.M.)en
dc.titleCenozoic stratigraphy of Rim Rock country, Trans-Pecos, Texasen
thesis.degree.departmentGeological Sciencesen
thesis.degree.disciplineGeological Sciencesen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelMastersen
thesis.degree.nameMaster of Artsen
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