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Book Petrography Geochemistry and Clay Mineralogy of a Paleosol in the Dockum Group Triassic Texas Panhandle

Download or read book Petrography Geochemistry and Clay Mineralogy of a Paleosol in the Dockum Group Triassic Texas Panhandle written by Khamchanh Kanhalangsy and published by . This book was released on 1997 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Petrographic Report on Clay rich Samples from Permian Unit 4 Salt G Friemel 1 Well Palo Duro Basin Deaf Smith County Texas

Download or read book Petrographic Report on Clay rich Samples from Permian Unit 4 Salt G Friemel 1 Well Palo Duro Basin Deaf Smith County Texas written by Larry M. Fukui and published by . This book was released on 1983 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Genetic Stratigraphy of the Dockum Group Triassic Palo Duro Canyon Panhandle Texas

Download or read book Genetic Stratigraphy of the Dockum Group Triassic Palo Duro Canyon Panhandle Texas written by Steven J. Seni and published by . This book was released on 1978 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Triassic Dockum Group is a complex assemblage of lacustrine, deltaic, and fluvial facies. Excellent exposures of these rocks were studied in and around Palo Duro State Park where the Prairie Dog Town Fork of the Red River and its tributaries have carved a network of steep-walled canyons. Three-dimensional exposures of the Dockum have permitted study of lateral as well as vertical facies relationships. Three progradational genetic sequences were delineated within the study area. A genetic sequence consists in ascending order of: lacustrine mudstone, deltaic siltstone-sandstone-conglomerate, and fluvial sandstone-conglomerate. The following three lines of evidence indicate that complex base-level changes, caused by fluctuations in lake area and depth, occurred during deposition of the Dockum Group. Within the first genetic sequence burrowed lacustrine mudstones are interbedded with caliche horizons. These caliche horizons contain discrete burrowed and pisolitic carbonate nodules that are composed of microspar calcite, sparry calcite, and minor dolomite. Silicified evaporite nodules occur at the base of this unit. The second genetic sequence comprises a progradational lacustrine delta system which was truncated by a valley-fill system which formed in response to diminished lake depth and area. The valley-fill system comprises a transgressive fluvial-deltaic-lacustrine sequence encased within an overall progradational sequence. The third genetic sequence is composed of classic "Gilbert-type" lacustrine deltas with prominent foreset beds indicating deposition in 8 to 15 m of water. Ephemeral lakes characterized the first and second progradational sequences. Lacustrine fan deltas formed in water 1 to 10 m deep. The third progradational sequence was deposited in more continuously deep-water (10-20 m) lakes. A vertical sequence through Dockum Group rocks reveals a change from alternating humid and arid conditions of the first and second progradational sequences toward continuously humid conditions which prevailed during deposition of the third progradational sequence.

Book Petrography and Geochemistry of the Artesia Group Palo Duro Basin Texas Panhandle

Download or read book Petrography and Geochemistry of the Artesia Group Palo Duro Basin Texas Panhandle written by Susan Davis Hovorka and published by . This book was released on 1988 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Palynology of the Triassic Dockum Group of Texas and Its Application to Stratigraphic Problems of the Dockum Group

Download or read book The Palynology of the Triassic Dockum Group of Texas and Its Application to Stratigraphic Problems of the Dockum Group written by Robert E. Dunay and published by . This book was released on 1972 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Biostratigraphy and Paleoecology of the Dockum Group triassic of Texas

Download or read book Biostratigraphy and Paleoecology of the Dockum Group triassic of Texas written by Phillip Anthony Murry and published by . This book was released on 1982 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Clay Mineralogy in Evaporite Host Rocks Palo Duro Basin Texas Panhandle

Download or read book Clay Mineralogy in Evaporite Host Rocks Palo Duro Basin Texas Panhandle written by R. Stephen Fisher and published by . This book was released on 1986 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Untangling the Quaternary Period

Download or read book Untangling the Quaternary Period written by Richard B. Waitt and published by Geological Society of America. This book was released on 2021-04-20 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume brings together nineteen papers of interdisciplinary Quaternary science honoring Stephen Porter. Special Paper 548 features papers from six continents, on wide-ranging topics including glaciation, paleoecology, landscape evolution, megafloods, and loess. The topical and geographical range of the papers, as well as their interdisciplinary nature, honor Porter's distinct approach to Quaternary science and leadership that influence the field to this day"--