Download or read book Lithogenetic Stratigraphy of the Triassic Dockum Formation Palo Duro Basin Texas written by David A. Johns and published by . This book was released on 1989 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Stratigraphy and Environmental Significance of the Continental Triassic Rocks of Texas written by Ted Gawloski and published by . This book was released on 1981 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nonmarine Triassic written by Spencer G. Lucas and published by New Mexico Museum of Natural History and Science. This book was released on with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tectonic Structures of the Palo Duro Basin Texas Panhandle written by Roy Theodore Budnik and published by . This book was released on 1989 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Depositional Environments Sedimentology and Stratigraphy of the Dockum Group Triassic in the Texas Panhandle written by Brent A. May and published by . This book was released on 1988 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by and published by . This book was released on 1970 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book The Nonmarine Triassic written by and published by . This book was released on 1993 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysical and Geochemical Delineation of Sites of Saline water Inflow to the Canadian River New Mexico and Texas written by Jeffrey G. Paine and published by . This book was released on 1994 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology of the Llano Estacado written by New Mexico Geological Society. Field Conference and published by . This book was released on 2001 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Texas State Documents written by Texas State Publications Clearinghouse and published by . This book was released on 1989 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Texas State Publications written by Texas State Publications Clearinghouse and published by . This book was released on 1989 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Texas State Publications Index written by and published by . This book was released on 1989-07 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluvial and Eolian Depositional Systems Paleosols and Paleoclimate of the Upper Cenozoic Ogallala and Blackwater Draw Formations Southern High Plains Texas and New Mexico written by Thomas C. Gustavson and published by . This book was released on 1996 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Abstracts Literature and Patents written by and published by . This book was released on 1990 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by University of Texas at Austin. Bureau of Economic Geology and published by . This book was released on 1989 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
