Carbonate Sedimentation Of The Argentine Precordillera
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Carbonate Sedimentation Of The Argentine Precordillera
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Author : Fernando Cañas
language : en
Publisher:
Release Date : 2002
Carbonate Sedimentation Of The Argentine Precordillera written by Fernando Cañas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Carbonate rocks categories.
Argentine Precordillera
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Author : Martin Keller
language : en
Publisher: Geological Society of America
Release Date : 1999
Argentine Precordillera written by Martin Keller and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Science categories.
Argentine Precordillera
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Author : Martin Keller
language : en
Publisher: Geological Society of America
Release Date : 1999
Argentine Precordillera written by Martin Keller and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Science categories.
Argentine Precordillera
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Author : George Herbert Davis
language : en
Publisher:
Release Date : 1999
Argentine Precordillera written by George Herbert Davis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Geology categories.
The Proto Andean Margin Of Gondwana
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Author : Robert J. Pankhurst
language : en
Publisher: Geological Society of London
Release Date : 1998
The Proto Andean Margin Of Gondwana written by Robert J. Pankhurst and has been published by Geological Society of London this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Science categories.
This text brings together multidisciplinary research and review papers on the Lower Palaeozoic geology of the Sierras Pampeanas and the Precordillera of central west Argentina. It deals with the final stages of assembly of the supercontinent of Gondwana and its tectonic interaction with Laurentia (the North American continent of today).
Laurentia Gondwana Connections Before Pangea
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Author : Víctor A. Ramos
language : en
Publisher: Geological Society of America
Release Date : 1999-01-01
Laurentia Gondwana Connections Before Pangea written by Víctor A. Ramos and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-01 with Science categories.
Explores the tectonics interaction among the exotic terrians between Laurentia and Southwest Gondwana. The authors reveal data that sheds light on pre-Pangea connections between Laurentia and Southwest Gondwana. These data concern the presence of Ollenelus and associated fauna in the Precordillera of central Western South America; the common early Paleozoic paleomagnetic data, the presence of a large early Paleozoic carbo nate platform distinct from the Southwest Gondwanan clastic platforms associated with glacial deposits, and the exotic nature of the Grenville basement of this platform.
The Spatial And Temporal Evolution Of The Argentine Precordillera At 30 S
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Author : Phoebe Ames Judge
language : en
Publisher:
Release Date : 2012
The Spatial And Temporal Evolution Of The Argentine Precordillera At 30 S written by Phoebe Ames Judge and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
The Argentine Precordillera is a foreland fold-and-thrust-belt in western Argentina that overlies the central Chilean flat slab region of the subducting Nazca plate. The Precordillera has accommodated shortening over the past ~20 million years; over this time, the Nazca slab evolved from a relatively steep subduction angle to horizontal subduction. Because the shortening in the Precordillera spans the shallowing of the slab, changes in the deformation patterns can provide insight into the relationship between the down-doing slab and the over-riding plate at zones of shallow subduction. In this thesis, I present field-based structural data, cross sections of the Precordillera, and estimates of shortening magnitude and rates for the region in an effort to characterize the impact of a shallowing slab on deformation at the surface.! To calculate shortening magnitudes for cross sections that have rigorous uncertainty estimates, I developed an algorithm that propagates known input uncertainties through an area balancing calculation and yields both Gaussian and maximum uncertainty estimates. The area balancing method is complementary to the line-length balancing method and allows one to include known initial uncertainties, such as the uncertainty on stratigraphic thicknesses and the location of the decollement, neither of which are included in the "minimum shortening" estimates often cited in line-length balanced shortening calculations.! I constructed two cross sectional profiles through the Precordillera to determine shortening magnitude and rates since 20 Ma. Calculations for the profiles yield ~115 ± 44 (100) km of shortening in the Precordillera, where the uncertainty values are both Gaussian and maximum respectively. This shortening magnitude agrees with other published values of shortening for the Precordillera (72 - 136 km) determined via linelength balancing, and the variation in published values falls within the calculated uncertainty estimates. Variations in shortening rate throughout the Precordillera correlate temporally with changes in the geometry of the Nazca slab. Prior to the shallowing of the slab, the Precordillera accommodated 2 - 3% of the total plate convergence; after the slab began to shallow, shortening in the Precordillera accommodated 10 - 12% of the convergence rate.
Surface Uplift And Erosion Of The Southernmost Argentine Precordillera
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Author : Alina Walcek
language : en
Publisher:
Release Date : 2011
Surface Uplift And Erosion Of The Southernmost Argentine Precordillera written by Alina Walcek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Andes categories.
The Great Ordovician Biodiversification Event
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Author : Barry D. Webby
language : en
Publisher: Columbia University Press
Release Date : 2004-04-14
The Great Ordovician Biodiversification Event written by Barry D. Webby and has been published by Columbia University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-04-14 with Science categories.
Two of the greatest evolutionary events in the history of life on Earth occurred during Early Paleozoic time. The first was the Cambrian explosion of skeletonized marine animals about 540 million years ago. The second was the "Great Ordovician Biodiversification Event," which is the focus of this book. During the 46-million-year Ordovician Period (489–443 m.y.), a bewildering array of adaptive radiations of "Paleozoic- and Modern-type" biotas appeared in marine habitats, the first animals (arthropods) walked on land, and the first non-vascular bryophyte-like plants (based on their cryptospore record) colonized terrestrial areas with damp environments. This book represents a compilation by a large team of Ordovician specialists from around the world, who have enthusiastically cooperated to produce this first globally orientated, internationally sponsored IGCP (International Geological Correlation Program) project on Ordovician biotas. The major part is an assembly of genus- and species-level diversity data for the many Ordovician fossil groups. The book also presents an evaluation of how each group diversified through Ordovician time, with assessments of patterns of change and rates of origination and extinction. As such, it will become the standard work and data source for biotic studies on the Ordovician Period.
Ameghiniana
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Author :
language : es
Publisher:
Release Date : 1997
Ameghiniana written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.