Download or read book Precambrian Cambrian Sedimentology Stratigraphy and Paleontology in the Great Basin Western United States written by Aaron Dale Sappenfield and published by . This book was released on 2015 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thick accumulations of Neoproterozoic and early Phanerozoic strata are distributed throughout much of the arid continental interior of western North America, providing an expansive and well-exposed archive of this important time in Earth's history. The information presented herein supplements evaluations regarding the utility and limitations of this archive by providing an integrated sedimentological, paleontological, and geochronological description for Precambrian-Cambrian strata exposed in the area and by reporting the discovery of new trace and body fossils housed there.
Download or read book Cambrian and Precambrian Rocks of the Groom District Nevada Southern Great Basin written by Harley Barnes and published by . This book was released on 1967 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cambrian and Early Ordovician Stratigraphy and Paleontology of the Basin and Range Province Western United States written by Harry E. Cook and published by . This book was released on 1989 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cambrian and Precambrian Rocks of the Groom District Nevada Southern Great Basin written by Harley Barnes and published by . This book was released on 1967 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper Precambrian and Lower Cambrian Strata in the Southern Great Basin California and Nevada written by J. H. Stewart and published by . This book was released on 1970 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additional title page description: Stratigraphy and origin of the thick upper Precambrian and Lower Cambrian detrital rocks that constitute the initial deposits of the Cordilleran geosyncline.
Download or read book Precambrian Geology of the United States written by Philip B. King and published by . This book was released on 1976 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precambrian Conterminous U S written by John C. Reed, Jr. and published by Geological Society of America. This book was released on 1993 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: This wide-ranging discussion of Precambrian rocks includes contributions from a diverse array of authors actively engaged in investigations of various aspects of U.S. Precambrian geology. Summary discussions by the editors of the five major chapters place these contributions in a logical regional framework.
Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1985 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1978 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upper Precambrian and Lower Cambrian Strata in the Southern Great Basin California and Nevada written by John H.. Stewart and published by . This book was released on 1970 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precambrian to Earliest Mississippian Stratigraphy Geologic History and Paleogeography of Northwestern Colorado and West central Colorado written by James M. Soule and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The early Paleozoic of northwestern and west-central Colorado is represented by continental shelf and continental shelf marginal sedimentary rocks of Late Cambrian, Ordovician, and Late Devonian ages. Differentially epeirogenic movements along fracture systems having Precambrian origins affected sedimentation patterns and probably mostly account for intervening times of erosion or nondeposition; activity along these tectonic elements persisted into the Neogene and possibly continues. These tectonic elements are west-north-west, south-southeast, and northeast trending fracture systems and an east-trending aulacogen in the approximate area of the modern Uinta Mountains. North-central Colorado was emergent land throughout most of this time and shed clastic sediments at varying rates to the west and southwest. Episodic continental motion and the effects of the Antler orogeny to the west are probably the direct causes of these epeirogenic movements.
Download or read book Paleoenvironments and the Precambrian Cambrian Transition in the Southern Great Basin Implications for Microbial Mat Development and the Cambrian Radiation written by Scott Andrew Mata and published by . This book was released on 2012 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Precambrian-Cambrian transition (~542 Ma) is a pivotal time in Earth’s history and is notable for marking the first skeletonized occurrences of many major groups of marine organisms. Concurrent with the appearance of these taxa are significant changes to the marine substrate, shifting from a seafloor dominated by microbial mats to one dominated by metazoan bioturbation. In the southern Great Basin, United States, these changes, however, appear gradual and the early Cambrian is unlike either the Precambrian or the subsequent Phanerozoic in terms of the unusual coexistence between seafloor microbial mats and marine organisms. Essential to understanding these interactions is a strong paleoenvironmental framework to work within to examine which environments microbial mats occur in and whether these are or are not the same environments that metazoan fossils and trace fossils occur in. The purpose of this dissertation is to develop a rigorous depositional model of Precambrian-Cambrian strata within the southern Great Basin to document the paleoenvironmental distribution of fossil taxa, trace fossils, and microbial mat structures to examine the nature of this coexistence during the early Cambrian. This may shed light on whether metazoans and microbial mats existed in similar environments or if each occupied a preferred environmental niche apart from the other. The Precambrian-Cambrian transition of the southern Great Basin, United States, consists of mixed-carbonate siliciclastic sedimentary rocks. Prior studies have emphasized that carbonate rocks were deposited offshore to siliciclastic rocks; however, reevaluation shows that these mixed carbonate-siliciclastic sedimentary rocks reflect the interaction of shallow shelf and shoreface siliciclastic sediments with marginal marine carbonate sediments of a barrier island coastline. The highest abundance of skeletal material in the form of shell beds, bioherms, and reefs occurs within the nearshore carbonates of these de
Download or read book Upper Precambrian and lower Cambrian strata in the southern Great Basin California and Nevada written by John Hall Stewart and published by . This book was released on 1970 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paleozoic Paleogeography of the Western United States II written by Calvin H. Stevens and published by Pacific Section Society of Economic Paleontologists & Mineralogists. This book was released on 1991 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of North American Pre Cambrian Geology written by Charles Richard Van Hise and published by . This book was released on 1896 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Precambrian Earth written by P.G. Eriksson and published by Elsevier. This book was released on 2004-03-04 with total page 967 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the editors strive to cover all primary (i.e. non-applied) topics in Precambrian geology in a non-partisan way, by using a large team of international authors to present their datasets and highly divergent viewpoints. The chapters address: celestial origins of Earth and succeeding extraterrestrial impact events; generation of continental crust and the greenstone-granite debate; the interaction of mantle plumes and plate tectonics over Precambrian time; Precambrian volcanism, emphasising komatiite research; evolution and models for Earth's hydrosphere and atmosphere; evolution of life and its influence on Precambrian ocean chemistry and chemical sedimentation; sedimentation through Precambrian time; the application of sequence stratigraphy to the Precambrian rock record. Each topic is introduced and a non-partisan closing commentary provided at the end of each chapter. The final chapter blends the major geological events and rates at which important processes occurred into a synthesis, which postulates a number of "event clusters" in the Precambrian when significant changes occurred in many natural systems and geological environments. Also available in paperback, ISBN: 0-444-51509-7
Download or read book CAMBRIAN AND PRECAMBRIAN ROCKS OF THE GROOM DISTRICT NEVADA SOUTHERN GREAT BASIN written by United States. Department of the Interior and published by . This book was released on 1970 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
