Chemical Fingerprinting, 40Ar/39Ar Dating and Diagenetic Alteration of Ordovician K-bentonites, Upper Mississippi Valley PDF Download
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Author: Elizabeth Ryan Leslie
Publisher:
ISBN:
Category :
Languages : en
Pages : 302
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Author: Elizabeth Ryan Leslie
Publisher:
ISBN:
Category :
Languages : en
Pages : 302
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Author: Lauren Matthews Chetel
Publisher:
ISBN:
Category :
Languages : en
Pages : 264
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Author: Greg A. Ludvigson
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 142
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Author: Jed Day
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 364
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Author: Bruce Forbes Bohor
Publisher: Geological Society of America
ISBN: 0813722853
Category : Science
Languages : en
Pages : 50
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Author: Dennis R. Kolata
Publisher:
ISBN: 9780578911755
Category :
Languages : en
Pages :
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This 328-page hardback volume printed by the Illinois State Geological Survey includes over 1200 full-color, high-resolution photographs of fossil specimens collected from the Upper Ordovician Platteville Formation in the Upper Midwest USA. The described and illustrated fossil assemblage includes exceptionally well-preserved sponges, corals, bryozoans, brachiopods, polyplacophorans, gastropods, bivalves, rostroconchs, cephalopods, trilobites, ostracodes, echinoderms, graptolites, cornulitids, hyolithids, macroalgae, and a wide variety of trace fossils.This overview is directed to students, collectors, and professional paleontologists. Each chapter begins with a brief introduction to the morphological terms used to describe the various fossil groups, followed by systematic descriptions, remarks, and occurrence information. This overview can serve as a starting place and a source of inspiration for future paleontological research on the fossils of the Platteville Formation, offer insights regarding past climate and the environments in which life thrived, and ultimately shed light on the history of life on our planet.Many Platteville fossils were described in pre-20th century reconnaissance reports commissioned by the state geological surveys of Illinois, Iowa, Minnesota, and Wisconsin. A historical summary of paleontological investigations of the Upper Ordovician stratigraphic succession can be found in Sloan (1987). A drawback to understanding the documented faunal composition of the Platteville Formation is that many of the fossils are described and illustrated in diverse monographs and shorter papers spanning more than 150 years and published by a variety of organizations. Many of these publications are difficult to find in libraries and are not available online. Furthermore, they tend to focus on specific phyla rather than the overall faunal associations. An added drawback is that many early publications lack high-resolution photographs, making it difficult to compare and contrast fossil specimens.
Author: Gulf Coast Association of Geological Societies
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 586
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Author: Michael Elliot Smith
Publisher: Springer
ISBN: 9401799067
Category : Science
Languages : en
Pages : 359
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Book Description
This volume presents a suite of detailed stratigraphic and sedimentologic investigations of the Eocene Green River Formation of Wyoming, Colorado and Utah, one of the world’s foremost terrestrial archives of lacustrine and alluvial deposition during the warmest portion of the early Cenozoic. Its twelve chapters encompass the rich and varied record of lacustrine stratigraphy, sedimentology, geochronology, geochemistry and paleontology. Chapters 2-9 provide detailed member-scale synthesis of Green River Formation strata within the Greater Green River, Fossil, Piceance Creek and Uinta Basins, while its final two chapters address its enigmatic evaporite deposits and ichnofossils at broad, interbasinal scale.
Author: Nancy D. Naeser
Publisher: Springer Science & Business Media
ISBN: 1461234921
Category : Science
Languages : en
Pages : 555
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The collection of papers in this volume is a direct result of the Society of Economic Paleontologists and Mineralogists Research Symposium on "Thermal History of Sedimentary Basins: Methods and Case Histories" held as part of the American Association of Petroleum Geologists Annual Convention in New Orleans in March 1985. The original goal of the sym posium was to provide a forum where specialists from a variety of dis ciplines could present their views of methods that can be used to study the thermal history of a sedimentary basin or an important portion of a basin. An explicit part of that goal was to illustrate each method by presentation of a case history application. The original goal is addressed by the chapters in this volume, each of which emphasizes a somewhat different approach and gives field data in one way or another to illustrate the practical useful ness ofthe method. The significance of our relative ignorance of the thermal conductivities of sedimentary rocks, especially shales, in efforts to understand or model sedimentary basin thermal histories and maturation levels is a major thrust of the chapter by Blackwell and Steele. Creaney focuses on variations in kerogen composition in source rocks of different depositional environments and the degree to which these chem- . ically distinct kerogens respond differently to progressive burial heating.
Author: Diego García-Bellido Capdevila
Publisher: IGME
ISBN: 9788478408573
Category :
Languages : en
Pages : 692
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