Evaluation of the Catahoula Formation as a source rock for uranium mineralization, with emphasis on East Texas.
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| Other Authors: | , , , |
| Format: | Thesis Book |
| Language: | English |
| Published: |
1981.
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| Online Access: | Link to ProQuest Copy Link to OAKTrust copy |
| Abstract: | The Oligocene/Miocene Catahoula Formation of the Texas coastal plain is a fluvial and lacustrine volcaniclastic unit composed of "normal" fluvial material mixed with distal rhyolitic air-fall ash and, in the lower coastal plain, also stream-transported erosion detritus from the volcanic source area in Trans-Pecos Texas and adjacent northern Mexico, the nearest source of appropriate age and chemical affinity. The Catahoula Formation consists of poorly sorted siltstones, sandstones, and mudstones. Silt-size grains include abundant, slightly altered volcanic glass, especially in the upper coastal plain. Sand-size grains are mostly quartz, some of which are very coarse. The clay-size grains include alteration products of the glass. Catahoula deposition is characterized by sporadic influx of air-fall ash into the low-gradient fluvial systems and coastal lakes. This influx must occasionally have overloaded the systems because mud flows into or on the floodplains are a prominent part of the Catahoula section. ... |
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| Item Description: | "Major subject: Geology." Typescript (photocopy). Vita. |
| Physical Description: | xiv, 249 leaves : illustrations ; 29 cm |
| Bibliography: | Includes bibliographical references (leaves 180-185). |