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Stratigraphy of the Calvert Bluff Formation of the Wilcox Group, Brazos County, Texas
| dc.creator | May, Audrey Gail | |
| dc.date.accessioned | 2012-06-07T22:37:27Z | |
| dc.date.available | 2012-06-07T22:37:27Z | |
| dc.date.created | 1994 | |
| dc.date.issued | 1994 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1994-THESIS-M466 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references. | en |
| dc.description.abstract | Wilcox Group sediments are classified into three main formations: a lower Hooper Formation, a middle Simsboro Formation, and an upper Calvert Bluff Formation. The Calvert Bluff and Simsboro formations have been interpreted as fluvial-delatic sediments. However, with the application of regional and detailed analyses, a new model has been developed. Lignite zones within the Calvert Bluff and Simsboro formations are of particular interest. These zones represent depositional environments that are distinctly different from the surrounding sediments. Sediments within the zones include ripplelaniinated sands and shales, interbedded with laterally extensive lignites. Regional and localized correlations of the lignite zones show development of incised valleys that were subsequently filled with braided stream sandstones, followed by tidally-influenced sands and shales interbedded with lignites. Incorporating well log analysis, seismic interpretations, and outcrop descriptions together, a sequence stratigraphic model is proposed. The model depicts highstand, transgressive, and lowstand deposition. This type of modelling is a necessary tool for future coal and hydrocarbon exploration. Primary petroleum production in east central Texas is from the Austin Chalk Formation. However, as seen in development of the Martins Prairie field in Grimes County, production is from braided stream deposits within incised valley fills of the Simsboro Formation in the Wilcox Group. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | geology. | en |
| dc.subject | Major geology. | en |
| dc.title | Stratigraphy of the Calvert Bluff Formation of the Wilcox Group, Brazos County, Texas | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | geology | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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