Download or read book Mid Permian Phosphoria Sea in Nevada and the Upwelling Model written by Keith Brindley Ketner and published by . This book was released on 2009 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mid Permian Phosphoria Sea in Nevada and the Upwelling Model written by Keith Brindley Ketner and published by . This book was released on 2009 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Phosphoria Sea extended at least 500 km westward and at least 700 km southwestward from its core area centered in southeastern Idaho. Throughout that extent it displayed many characteristic features of the core: the same fauna, the same unique sedimentary assemblage including phosphate in mostly pelletal form, chert composed mainly of sponge spicules, and an association with dolomite. Phosphoria-age sediments in Nevada display ample evidence of deposition in shallow water. The chief difference between the sediments in Nevada and those of the core area is the greater admixture of sandstone and conglomerate in Nevada. Evidence of the western margin of the Phosphoria Sea where the water deepened and began to lose its essential characteristics is located in the uppermost part of the Upper Devonian to Permian Havallah sequence, which has been displaced tectonically eastward an unknown distance. The relatively deep water in which the mid-Permian part of the Havallah was deposited was a sea of probably restricted east-west width and was floored by a very thick sequence of mainly terrigenous sedimentary rocks. The phosphate content of mid-Permian strata in western exposures tends to be relatively low as a percentage, but the thickness of those strata tends to be high. The core area in and near southeastern Idaho where the concentration of phosphate is highest was separated from any possible site of upwelling oceanic waters by a great expanse of shallow sea."--Publisher's website.

Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1973 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life Cycle of the Phosphoria Formation written by J.R. Hein and published by Elsevier. This book was released on 2003-12-18 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geological, geoenvironmental, and resource studies were completed to study a world-class phosphate ore in the Western US Phosphate Field. This integrated, multi-agency, multidisciplinary research emphasized: (1) Geological and geochemical baseline characterization of the deposit and associated rocks, (2) Delineation, assessment, and spatial analysis of phosphate resources and lands disturbed by mining, (3) Contaminant residence, reaction pathways, and environmental fate associated with the occurrence, development, and use of phosphate rock, and (4) Depositional origin and evolution of the Phosphoria Formation and deposit and geoenvironmental modeling.

Download or read book U S Geological Survey Professional Paper written by Keith Brindley Ketner and published by . This book was released on 1984 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geochemistry of the Phosphoria Formation at Montpelier Canyon Idaho written by David Z. Piper and published by . This book was released on 1994 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Professional Paper written by Geological Survey (U.S.) and published by . This book was released on 1949 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Paleozoic Systems of the Rocky Mountain Region written by Mark W. Longman and published by . This book was released on 1996 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phanerozoic Phosphorite Depositional Systems written by Jörg Trappe and published by Springer. This book was released on 1998-09-17 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents a new and comprehensive model for the development of phosphate sediments. Starting with geochemistry and including new methods in sedimentology (sequence stratigraphy), it results in an interdisciplinary approach to a resource system covering all fields of phosphate geology. For researchers, teachers and students alike the book offers a complete overview of the whole field including case studies of major deposits.

Download or read book Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1985 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Petroleum Abstracts written by and published by . This book was released on 1991 with total page 1512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pangea written by Ashton F. Embry and published by Calgary : Canadian Society of Petroleum Geologists. This book was released on 1994 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Palaeozoic Climate Cycles written by A. Gąsiewicz and published by Geological Society of London. This book was released on 2014-02-03 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents results of a variety of case studies documenting the Late Palaeozoic climate changes and cyclicity of deposition. The collected papers cover many aspects related to palaeoenvironmental analysis with sedimentological, stratigraphic, palaeobiological, geochemical, and palaeomagnetic studies of the fossil record around the Late Palaeozoic Ice Age and soon after. They span a stratigraphic interval from Carboniferous to Permian–Triassic transition around the world. This book comprising results for a range of disciplines, is a valuable source for not only researchers who are actively working on specific aspects of the Late Palaeozoic and looking for an up-to-date reference on this inhospitable time in the Earth’s history. It is also of interest to climate modellers and the wider scientific community with an interest in the latest research on the decline of the Palaeozoic World.

Download or read book Paleozoic Paleogeography of the West Central United States written by and published by . This book was released on 1980 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical Stratigraphy and Mineral Resources of Permian Rocks in Western Wyoming written by Richard Porter Sheldon and published by . This book was released on 1963 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Survey Circular written by and published by . This book was released on 1977 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Earthquakes in the United States October December 1976 written by Charles Richard Murray and published by . This book was released on 1949 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: