Middle Proterozoic to Cambrian rifting, central North America PDF Download
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Author: Richard W. Ojakangas
Publisher: Geological Society of America
ISBN: 0813723124
Category : Science
Languages : en
Pages : 331
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Book Description
Based on the Tenth International Basement Tectonics Conference held at the University of Minnesota-Duluth in August 1992, this volume contains 19 papers, 13 of which focus on the Middle Proterozoic Midcontinent Rift. An introductory essay discussing the Middle Proterozoic to Cambrian rifting in central North America is followed by contributions addressing topics including the Midcontinent Rift in Michigan and Minnesota, the Port Coldwell veins of northern Ontario, and petrography and sedimentation in the western Lake Superior region. The last five papers deal with the pre-Mount Simon basins of Ohio, the English Graben and the newly proposed East Continent Rift Complex, the Reelfoot Rift/Rough Creek Graben in the evolution of the Illinois Basin, and the A-type sheet granites in the Oklahoma Aulacogen of Cambrian age. Bandw illustrations. Annotation copyrighted by Book News, Inc., Portland, OR
Author: Richard W. Ojakangas
Publisher: Geological Society of America
ISBN: 0813723124
Category : Science
Languages : en
Pages : 331
Get Book Here
Book Description
Based on the Tenth International Basement Tectonics Conference held at the University of Minnesota-Duluth in August 1992, this volume contains 19 papers, 13 of which focus on the Middle Proterozoic Midcontinent Rift. An introductory essay discussing the Middle Proterozoic to Cambrian rifting in central North America is followed by contributions addressing topics including the Midcontinent Rift in Michigan and Minnesota, the Port Coldwell veins of northern Ontario, and petrography and sedimentation in the western Lake Superior region. The last five papers deal with the pre-Mount Simon basins of Ohio, the English Graben and the newly proposed East Continent Rift Complex, the Reelfoot Rift/Rough Creek Graben in the evolution of the Illinois Basin, and the A-type sheet granites in the Oklahoma Aulacogen of Cambrian age. Bandw illustrations. Annotation copyrighted by Book News, Inc., Portland, OR
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 738
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Book Description
Author: Conall Mac Niocaill
Publisher: Geological Society of London
ISBN: 9781862390515
Category : Science
Languages : en
Pages : 358
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Book Description
Brings together a series of papers which explore various aspects of the deformation of continental lithosphere, covering different tectonic settings from the Palaeozoic to the present day. These include terrane accretion and juxtaposition, the exhumation of high-pressure terrains, and mechanisms of crustal extension and rifting.
Author: Michael Brown
Publisher: Cambridge University Press
ISBN: 0521782376
Category : Science
Languages : en
Pages : 550
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Book Description
Summary of recent research covering experimental methods and numerical modelling, for graduate students and researchers.
Author: Z.X. Li
Publisher: Geological Society of London
ISBN: 1862397333
Category : Science
Languages : fr
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: P.A. Ziegler
Publisher: Elsevier
ISBN: 1483295087
Category : Science
Languages : en
Pages : 914
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Book Description
This volume contains papers giving an interdisciplinary review of 12 major rift systems from North and South America, Africa, Europe and Asia. These papers are written by an international group of academic and industrial specialists each of whom is most knowledgeable about the respective rift. The analyzed rifts were selected on the basis of availability of an as-complete-as-possible geological and geophysical data base. Thirteen papers deal with geodynamic processes governing the evolution of rifts.A comprehensive digest of the available stratigraphic, structural, geophysical and petrological data, together with an extensive list of references, is provided for each of the analyzed rift systems. The megatectonic setting and dynamics of evolution of each basin is discussed. Geodynamic models are tested against the record of the analyzed rifts.The question of "active" as against "passive" rifting is addressed. The rifts analyzed range in age from Precambrian to Recent and cover a wide spectrum of megatectonic settings. There is discussion of the evolution of rifts in a plate-tectonic frame. The case histories are followed by discussions addressing the global setting of rifts and geodynamic processes active during the development of rifted basins.
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 748
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Book Description
Author: Ron Morton
Publisher: Rockflower Press LLC
ISBN: 0978599861
Category : Science
Languages : en
Pages : 235
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Book Description
In this sequel to the award winning Talking Rocks an earth scientist and an Ojibwe elder travel across Minnesota exploring the ancient rocks that make up a large part of that state.As the geologist describes how these rocks formed and brings to life the ancient worlds they created, the elder, through Native American stories, oral history, culture, and science illustrates how his people had an intimate understanding of,and respect for, these ancient rocks and the land they gave shape to.Traveling from Ely, Grand Portage, Gunflint Lake, and Isle Royale in the northern part of the state south to Jeffers, Mor¬ton, and Blue Mounds State Park the two find themselves discussing such diverse topics as the nature of science, holistic geology, mining, science and spirituality, the legacy of the furtrade, significance of the Little Spirit Tree, and much more. Ancient Earth and the First Ancestors not only tells a fascinating story that spans billions of years, but is also a wonderful chronicle of two people from different cultural and scientific heritages learning to understand, appreciate,and see the value and importance in each other’s way of viewing this land and the planet we all call home.
Author: Jan Harff
Publisher: Springer Science & Business Media
ISBN: 9783540641094
Category : Computers
Languages : en
Pages : 472
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Book Description
Computerized modeling is a powerful tool to describe the complex interrelations between measured data and the dynamics of sedimentary systems. Complex interaction of environmental factors with natural variations and increasing anthropogenic intervention is reflected in the sedimentary record at varying scales. The understanding of these processes gives way to the reconstruction of the past and is a key to the prediction of future trends. Especially in cases where observations are limited and/or expensive, computer simulations may substitute for the lack of data. State-of-the-art research work requires a thorough knowledge of processes at the interfaces between atmosphere, hydrosphere, biosphere, and lithosphere, and is therefore an interdisciplinary approach.
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 160
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Book Description
