dc.contributor.advisor	Lankford, Robert R.	en_US
dc.creator	Graf, Claus Heinrich	en_US
dc.date.accessioned	2016-04-22T22:00:48Z	en_US
dc.date.available	2016-04-22T22:00:48Z	en_US
dc.date.issued	1966	en_US
dc.description.abstract	Geomorphic studies of the Gulf Coastal Plain show the existence of an interrupted trend of elongate ridges, which extends from southwest Texas into western Louisiana. Sediment samples from shallow borings on the top and flanks of these ridges were studied in terms of their mechanical properties and paleontological, characteristics. Heavy and light mineral constituents were studied in selected samples. Deep weathering is the main post-depositional alteration suffered by these sediments and products of soil-forming processes- complicate the studies. Results show that the high ridges are composed of fine and very fine sands in most areas and of very fine sands and silts in the easternmost segment. They were deposited as barriers, under generally similar conditions as the present barrier islands of the Gulf of Mexico. The trend is referred to as "Ingleside Barrier Trend", The barrier sands interfinger with near-shore deposits to the south and with bay sediments to the north, although locally, the upper sands are time equivalents to deltaic and alluvial clays, which thinly cover the bay and near-shore deposits. Regional subsidence of the Gulf Coast Geosyncline and regional uplift of the inland areas are responsible for the present topographic position of the Late-Pleistocene, Ingleside Barrier Trend. In certain areas, local movements are superimposed on the regional deformations. Paleontological studies proved helpful in outlining paleoenvironments, but failed to be of value for age determinations. Local age data, as well as regional paleotemperature studies were used to establish a correlation with glacial events. It was concluded, that the Ingleside Barrier Trend formed during an early, unnamed interstadial of the Wisconsin Glaciation, when sea level was 10 to 20 feet higher than the present, approximately, 55, 000 yrs. B. P. The trend probably correlates With similar systems around the Gulf of Mexico, as well as along the Atlantic Coastal Plain.	en_US
dc.format.digitalOrigin	reformatted digital	en_US
dc.format.extent	102 pp	en_US
dc.identifier.callno	Thesis Geol. 1966 Graf	en_US
dc.identifier.citation	Graf, Claus Heinrich. "The late Pleistocene Ingleside Barrier Trend, Texas and Louisiana." (1966) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/90324">https://hdl.handle.net/1911/90324</a>.	en_US
dc.identifier.digital	RICE1361	en_US
dc.identifier.uri	https://hdl.handle.net/1911/90324	en_US
dc.language.iso	eng	en_US
dc.rights	Copyright 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.title	The late Pleistocene Ingleside Barrier Trend, Texas and Louisiana	en_US
dc.type	Thesis	en_US
dc.type.genre	maps	en_US
dc.type.material	Text	en_US
thesis.degree.department	Earth Science	en_US
thesis.degree.discipline	Natural Sciences	en_US
thesis.degree.grantor	Rice University	en_US
thesis.degree.level	Masters	en_US
thesis.degree.name	Master of Arts	en_US

The late Pleistocene Ingleside Barrier Trend, Texas and Louisiana

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