Unusual Central Nevada Geologic Terranes Produced by Late Devonian Antler Orogeny and Alamo Impact

Unusual Central Nevada Geologic Terranes Produced by Late Devonian Antler Orogeny and Alamo Impact
Title Unusual Central Nevada Geologic Terranes Produced by Late Devonian Antler Orogeny and Alamo Impact PDF eBook
Author Forrest G. Poole
Publisher Geological Society of America
Pages 116
Release 2015-10-08
Genre Nature
ISBN 0813725178

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"This volume is the product of nearly 25 years of geologic investigations. It is an exposition of two small areas, both less than 25 km from the front of the Mississippian Roberts Mountains thrust, but each displaying a different, unique geologic terrane, previously undocumented in Nevada and perhaps in North America"--

Devonian Climate, Sea Level and Evolutionary Events

Devonian Climate, Sea Level and Evolutionary Events
Title Devonian Climate, Sea Level and Evolutionary Events PDF eBook
Author R. T. Becker, 1st
Publisher Geological Society of London
Pages 481
Release 2016-10-20
Genre Science
ISBN 1862397341

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The geological and palaeontological records of climate change and evolutionary events reflect Earth’s widely fluctuating climate systems. Past climates hold the clues to understanding future developments. In this context, research on linked climate, biodiversity and sea-level fluctuations of the Devonian contributes to the general knowledge of deep-time climate dynamics. A fruitful co-operation between the International Geoscience Programme IGCP 596 and the International Subcommission on Devonian Stratigraphy (SDS) addressed the complex succession of climate-linked Devonian global events of varying magnitude. The primary goal of IGCP 596 was to assess mid-Palaeozoic climate changes and their impact on marine and terrestrial biodiversity using an interdisciplinary approach. The focus of SDS includes a revision of the eustatic sea-level curve and the integration of refined chrono- and biostratigraphy with modern chemo-, magneto-, cyclo-, event- and sequence stratigraphy. This enabled the much improved dating and correlation of abiotic perturbations, evolutionary changes, organism and ecosystem ranges. Results by 37 authors are presented in 14 chapters, which cover the entire Devonian.

Geology of Nevada

Geology of Nevada
Title Geology of Nevada PDF eBook
Author Source Wikipedia
Publisher University-Press.org
Pages 46
Release 2013-09
Genre
ISBN 9781230552293

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 26. Chapters: Alamo bolide impact, Amargosa Valley, Antler orogeny, Benton Springs Fault, Carlin Unconformity, Chinle Formation, Coconino Sandstone, Furnace Creek Fault Zone, Geological Exploration of the Fortieth Parallel, Great Unconformity, Honey Lake Fault Zone, Independence Valley fault system, Kaibab Limestone, Kayenta Formation, Lake Bonneville, Lake Lahontan, Lake Manly, Moenkopi Formation, Navajo Sandstone, Orovada (soil), Petrified Springs fault, Pyramid Lake Fault Zone, Sonomia Terrane, Walker Lane, Wingate Sandstone.

Geology of Nevada

Geology of Nevada
Title Geology of Nevada PDF eBook
Author
Publisher NV Bureau of Mines & Geology
Pages 140
Release
Genre
ISBN

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The Nature and Timing of Tectonism in the Western Facies Terrane of Nevada and California

The Nature and Timing of Tectonism in the Western Facies Terrane of Nevada and California
Title The Nature and Timing of Tectonism in the Western Facies Terrane of Nevada and California PDF eBook
Author Keith Brindley Ketner
Publisher
Pages 28
Release 1998
Genre Science
ISBN

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R019: Guidebook to the geology of four Tertiary volcanic centers in central Nevada

R019: Guidebook to the geology of four Tertiary volcanic centers in central Nevada
Title R019: Guidebook to the geology of four Tertiary volcanic centers in central Nevada PDF eBook
Author John W. Erwin
Publisher NV Bureau of Mines & Geology
Pages 80
Release
Genre
ISBN

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Pennsylvanian to Cretaceous Folds and Thrusts in South-central Nevada

Pennsylvanian to Cretaceous Folds and Thrusts in South-central Nevada
Title Pennsylvanian to Cretaceous Folds and Thrusts in South-central Nevada PDF eBook
Author Angela Giovanna Russo
Publisher
Pages 87
Release 2013
Genre Geology, Stratigraphic
ISBN

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Understanding Permian and Mesozoic contractional structures from southern California to northern Nevada requires correlation through south-central Nevada. After the Devonian-Mississippian Antler orogeny through the Permian-Triassic Sonoma orogeny and then up to the Sevier orogeny, south-central Nevada was thought to have remained tectonically inactive. However, Pennsylvanian through Jurassic age deformation is documented to the south in Death Valley and to the north. Identifying geometries, spatial relationships, and relative timing of deformations in the Timpahute Range, south-central Nevada, is an essential piece to completing the overall understanding of Nevada geology. The purpose of this study is to identify and analyze deformational structures of the Timpahute Range and clarify their geometries, relative timing, regional correlation, and tectonic significance. All contraction in the Timpahute Range is constrained by Antler foreland basin units and the intrusion of the 102.9 ± 3.2 Ma Lincoln stock. New mapping at a scale of 1:12,000 documents three contractional episodes in the Timpahute Range, and cross-cutting relations from this study determine at least a relative timeline. The Tempiute Ridge Block contains a W-vergent fold that represents the earliest contractional event in the area. Next was the W-vergent Schofield Pass fault zone. The last contractional deformation formed E-vergent structures of the Central Nevada thrust belt which make up the Lincoln duplex. In collisional orogens, closely related thrust faults may join together in a fault system that includes such structures such as imbricate fans and duplexes. The Lincoln duplex, part of the Central Nevada thrust belt exposed in the Timpahute Range and southern Worthington Mountains, consists of folds and a sequence of thrust faults. New data suggest the Lincoln duplex is a variation of the hinterland dipping duplex, with out-of-sequence thrusts. Cenozoic extensional faults overprint the contractional structures. A series of NW-striking normal faults terminate at a major ENE-striking left-lateral strike-slip fault. This fault continues eastward through multiple ranges in south-central Nevada as part of the Timpahute lineament.