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Author: Thomas Howard Anderson
Publisher: Geological Society of America
ISBN: 0813723930
Category : Science
Languages : en
Pages : 726
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Book Description
Author: Thomas Howard Anderson
Publisher: Geological Society of America
ISBN: 0813723930
Category : Science
Languages : en
Pages : 726
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Book Description
Author: Susana A. Alaniz-Álvarez
Publisher: Geological Society of America
ISBN: 0813724228
Category : Science
Languages : en
Pages : 478
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Author: Thomas H. Anderson
Publisher: Geological Society of America
ISBN: 0813725135
Category : Continental drift
Languages : en
Pages : 606
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Book Description
"The objective of this volume is to characterize geologic relationships and settings at the margin of the Laurasia plate from Middle Jurassic to the Early Cretaceous, overlapping the time of the opening of the central Atlantic basin, with the intent of assessing the compatibility of the features with contemporaneous, sinistral fault movement"--Introduction, page v.
Author: G. Moore
Publisher: Geological Society of America
ISBN: 0813700140
Category : Science
Languages : en
Pages : 54
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Book Description
Edited by G. Moore, these four field guide chapters were prepared for the 2008, Houston, Texas, joint meeting between The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM, and the Houston Geological Society.
Author: Robert B. Blodgett
Publisher: Geological Society of America
ISBN: 0813724422
Category : Science
Languages : en
Pages : 338
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Book Description
"Displaced or tectonostratigraphic terranes comprise a huge portion of real estate in the North American Cordillera. Terranes are discrete, fault-bound blocks of regional extent, with rocks and fossils that differ to a great extent from those of adjacent blocks. The allochthonous nature of most terranes, relative to adjacent craton, is well established. When mapped, they resemble a collage of mixed rock types, tectonic styles, metamorphism, and volcanic origins--each part resembling the pieces of a puzzle. Terrane studies remain integral to understanding the geological evolution of western North America. Since the initiation of the concept summarized in 1979 by the late David L. Jones, the significance of fossils and stratigraphy has been key to solving the puzzle. Chapters of this book written by experts in their field, provide a sense of the diversity of approaches in paleontology and stratigraphy. Contributions span geologic time from the Precambrian (Vendian) to Cretaceous and address over 20 Cordilleran terranes."--Publisher's website.
Author: Douglas M. Morton
Publisher: Geological Society of America
ISBN: 0813712114
Category : Science
Languages : en
Pages : 774
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Book Description
"This book includes petrology, geochronology, and regional aspects of individual plutons, as well as evolution of the Peninsular Ranges batholith. Several chapters deal with geophysical, chemical, and isotopic based interpretations of the genesis and evolution of the batholith. An accompanying DVD contains detailed colored maps and chemical, isotopic, mineralogic, and physical properties data"--Provided by publisher.
Author: Suzanne Mahlburg Kay
Publisher: Geological Society of America
ISBN: 0813712041
Category : Science
Languages : en
Pages : 292
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Book Description
"The American Cordilleras form a continuous orogen that extends for 12,500 km along the eastern flank of the Pacific Ocean from Arctic to Antarctic latitudes as an integral part of the circum-Pacific orogenic belt. Following two summary chapters on the overall anatomy and evolution of North and South American segments of the orogenic system, this volume includes ten seminal chapters dealing with salient aspects of the key geodynamic processes that have accompanied Cordilleran geotectonic evolution: forearc terrane accretion, arc magmatism, shallow subduction, and backarc intracontinental deformation. The papers in this volume were selected from those presented at the 2006 Backbone of the Americas Meeting, which was sponsored jointly by multiple North and South American geological societies in Mendoza, Argentina."--pub. desc.
Author: Philip A. Pearthree
Publisher: Geological Society of America
ISBN: 0813700558
Category : Science
Languages : en
Pages :
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Author: Robert S. Hildebrand
Publisher: Geological Society of America
ISBN: 0813724570
Category : Science
Languages : en
Pages : 80
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Book Description
Within the Sonora segment to the south, break-off magmatism was also prevalent. Both the Canadian and Sonoran segments have abundant porphyry copper mineralization temporally and spatially associated with the break-off magmas, which suggests a genetic link between slab failure and porphyry copper mineralization. By 53 Ma, eastwardly dipping subduction of Pacific Ocean crust was generating arc magmatism on the amalgamated Cordilleran collision zone in both the Canadian and Sonoran segments. Oceanic schists, such as the Orocopia-Pelona-Rand, were formed in the ocean basin west of Rubia and accreted during initiation of the new easterly dipping subduction zone. A major transform fault, called the Phoenix fault, connects the Sevier fold-thrust belt at the California-Nevada border with that in eastern Mexico and separates the Great Basin and Sonoran segments. It juxtaposes the Sierra-Mojave-Sonora block alongside the Transition Zone of the Colorado Plateau. Cordilleran events affected the subsequent development of western North America. For example, the structural Basin and Range Province appears to coincide with the region where exotic allochthons sit atop North American crust in both the Great Basin and Sonoran segments. Also, within the triangular Columbia embayment, large segments of Rubia appear to have escaped laterally during the Cordilleran orogeny to create a lithospheric "hole" that was later filled by basalt of the Columbia River and Modoc plateaux.
Author: Efrén Pérez Segura
Publisher: Geological Society of America
ISBN: 0813722543
Category : Science
Languages : en
Pages : 136
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