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Author: John C. Reed, Jr.
Publisher: Geological Society of America
ISBN: 081375447X
Category : Science
Languages : en
Pages : 752
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Book Description
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.
Author: John C. Reed, Jr.
Publisher: Geological Society of America
ISBN: 081375447X
Category : Science
Languages : en
Pages : 752
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Book Description
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.
Author: Ben A. Van der Pluijm
Publisher: Geological Society of America
ISBN: 9780813723082
Category : Travel
Languages : en
Pages : 220
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Book Description
Author: S.B. Lucas
Publisher: Geological Society of America
ISBN: 0813754461
Category : Science
Languages : en
Pages : 395
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Book Description
This volume contains a description of the geology and mineral deposits of the Superior Province of the Canadian Shield, an overview of Grenville Province geology, and a synopsis of Precambrian fossil occurrences in North America. Six large plates include a geological map of Canada, geological map of the Grenville Province, lithotectonic map of the Superior Province, Archean mineral deposit map of the Superior Province, and more.
Author: Michael J. Soreghan
Publisher: Geological Society of America
ISBN: 9780813723471
Category : Science
Languages : en
Pages : 274
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Book Description
Author: E. Neal Hinrichs
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 246
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Book Description
Modal, chemical, and isotopic data for the granitic rocks of the Tuolumne Meadows quadrangle.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 282
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Book Description
Author: Z.X. Li
Publisher: Geological Society of London
ISBN: 1862397333
Category : Science
Languages : en
Pages : 298
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Book Description
The supercontinent-cycle hypothesis attributes planetary-scale episodic tectonic events to an intrinsic self-organizing mode of mantle convection, governed by the buoyancy of continental lithosphere that resists subduction during the closure of old ocean basins, and the consequent reorganization of mantle convection cells leading to the opening of new ocean basins. Characteristic timescales of the cycle are typically 500 to 700 million years. Proposed spatial patterns of cyclicity range from hemispheric (introversion) to antipodal (extroversion), to precisely between those end members (orthoversion). Advances in our understanding can arise from theoretical or numerical modelling, primary data acquisition relevant to continental reconstructions, and spatiotemporal correlations between plate kinematics, geodynamic events and palaeoenvironmental history. The palaeogeographic record of supercontinental tectonics on Earth is still under development. The contributions in this Special Publication provide snapshots in time of these investigations and indicate that Earth’s palaeogeographic record incorporates elements of all three end-member spatial patterns.
Author: Geological Society of London
Publisher: Geological Society of London
ISBN: 9781862391789
Category : Nature
Languages : en
Pages : 474
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Book Description
This collection of research and review papers addresses the question of structural evolution during deformation to high strains and the physical properties of rocks that have been affected by high-strain zones. The discussions range from natural examples at outcrop to microscopic studies. They include experiments and numerical models based on the active processes in high-strain zones as well as studies on the physical properties of highly strained rocks in the field and laboratory. Specific questions addressed include magnetotelluric imaging of faults, magnetic fabrics, fabric development, seismic properties of highly strained rocks, change of rheology with strain, influence of melt on the localization of deformation, the relationship between deformation and metamorphism as well as new methods in the analysis of deformation. The book is aimed at an interdisciplinary group of readers interested in the effects of high strain in rocks.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 64
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Book Description
Author: John C. Crowell
Publisher: Geological Society of America
ISBN: 9780813711928
Category : Science
Languages : en
Pages : 126
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Book Description
Ancient ice ages are revealed by distinctive stratal facies that tell us much about the times of coolness and how the climate system works. Several strong ice ages were recorded in the late Paleozic time and during transitions from the Devonian in to the Carboniferous and from the Ordovician in to the Silurian. In Precambrian time, several are documented for both the late and early Proterozoic age. This title explores findings on the pre-Mesozoic ice ages, examining climate in relation to tectonobiogeochemical activities rooted in the changing earth-air-ocean system.
