Laurentia-Gondwana Connections Before Pangea

Laurentia-Gondwana Connections Before Pangea PDF Author: Víctor A. Ramos
Publisher: Geological Society of America
ISBN: 9780813723365
Category : Science
Languages : en
Pages : 290

Get Book Here

Book Description
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.

Laurentia-Gondwana Connections Before Pangea

Laurentia-Gondwana Connections Before Pangea PDF Author: Víctor A. Ramos
Publisher: Geological Society of America
ISBN: 9780813723365
Category : Science
Languages : en
Pages : 290

Get Book Here

Book Description
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.

Laurentia-Gondwana Connections Before Pangea

Laurentia-Gondwana Connections Before Pangea PDF Author: Víctor A. Ramos
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 276

Get Book Here

Book Description


Ancient Supercontinents and the Paleogeography of Earth

Ancient Supercontinents and the Paleogeography of Earth PDF Author: Lauri J. J Pesonen
Publisher: Elsevier
ISBN: 0128185341
Category : Science
Languages : en
Pages : 664

Get Book Here

Book Description
Ancient Supercontinents and the Paleogeography of Earth offers a systematic examination of Precambrian cratons and supercontinents. Through detailed maps of drift histories and paleogeography of each continent, this book examines topics related to Earth's tectonic evolution prior to Pangea, including plate kinematics, orogenic development, and paleoenvironments. Additionally, this book discusses the methodologies used, principally paleomagnetism and tectonostratigraphy, and addresses geophysical topics of mantle dynamics and geodynamo evolution over billions of years. Structured clearly with consistent coverage for Precambrian cratons, this book combines state-of-the-art paleomagnetic and geochronologic data to reconstruct the paleogeography of the Earth in the context of major climatic events such as global glaciations. It is an ideal, up-to-date reference for geoscientists and geographers looking for answers to questions surrounding the tectonic evolution of Earth. - Provides robust paleogeographies of Precambrian cratons based on high-quality paleomagnetic and geochronologic data and critically tested by global geological datasets - Includes links to updated databases for the Precambrian such as PALEOMAGIA and the Global Paleomagnetic Database (GPMDB) - Presents full-color maps of the drift histories of each continent as well as their paleogeographies - Discusses key questions regarding continental drift, the supercontinent cycle, and the geomagnetic dipole hypothesis and analyzes palaeography in the context of Earth's holistic evolution

Terrane Processes at the Margins of Gondwana

Terrane Processes at the Margins of Gondwana PDF Author: Alan Vaughan
Publisher: Geological Society of London
ISBN: 9781862391796
Category : Science
Languages : en
Pages : 462

Get Book Here

Book Description
The Australide orogen, the southern hemisphere Neoproterozoic to Mesozoic terrane accretionary orogen that forms the palaeo-Pacific margin of Gondwana, is one of the largest and longest-lived orogens on Earth. This book brings together a series of reviews and multidisciplinary research papers that comprehensively cover the Australides from the Tasman orogen of eastern Australia to the Neoproterozoic and Palaeozoic orogens of South America, taking in New Zealand and Antarctica along the way. It deals with the evolution of the southern Gondwana margin, as it grew during a series of terrane accretion episodes from the late Proterozoic through to final fragmentation in mid-Cretaceous times. Global perspectives are given by comparison with the Palaeozoic northern Gondwana margin and documentation of world-wide terrane accretion episodes in the Late Triassic-Early Jurassic and mid-Cretaceous. The Tasmanides of eastern Australia, and the terrane histories of New Zealand and southern South America are given comprehensive up-to-date reviews.

Continents and Supercontinents

Continents and Supercontinents PDF Author: John J. W. Rogers
Publisher: Oxford University Press
ISBN: 0195347331
Category : Science
Languages : en
Pages : 298

Get Book Here

Book Description
To this day, there is a great amount of controversy about where, when and how the so-called supercontinents--Pangea, Godwana, Rodinia, and Columbia--were made and broken. Continents and Supercontinents frames that controversy by giving all the necessary background on how continental crust is formed, modified, and destroyed, and what forces move plates. It also discusses how these processes affect the composition of seawater, climate, and the evolution of life. Rogers and Santosh begin with a survey of plate tectonics, and go on to describe the composition, production, and destruction of continental and oceanic crust, and show that cratons or assemblies of cratons became the first true continents, approximately one billion years after the earliest continental crust evolved. The middle part of the book concentrates on supercontinents, beginning with a discussion of types of orogenic belts, distinguishing those that formed by closure of an ocean basin within the belt and those that formed by intracontinental deformation caused by stresses generated elsewhere. This information permits discrimination between models of supercontinent formation by accretion of numerous small terranes and by reorganization of large old continental blocks. This background leads to a description of the assembly and fragmentation of supercontinents throughout earth history. The record is most difficult to interpret for the oldest supercontinent, Columbia, and also controversial for Rodinia, the next youngest supercontinent. The configurations and pattern of breakup of Gondwana and Pangea are well known, but some aspects of their assembly are unclear. The book also briefly describes the histories of continents after the breakup of Pangea, and discusses how changes in the composition of seawater, climate, and life may have been affected by the sizes and locations of continents and supercontinents.

Middle American Terranes, Potential Correlatives, and Orogenic Processes

Middle American Terranes, Potential Correlatives, and Orogenic Processes PDF Author: J. Duncan Keppie
Publisher: CRC Press
ISBN: 1000687627
Category : Science
Languages : en
Pages : 567

Get Book Here

Book Description
Consisting of papers that have appeared recently in International Geology Review, Middle American Terranes, Potential Correlatives, and Orogenic Processes focuses on Middle American terranes in which tectonic processes, including flat-slab subduction, for orogenic development are examined at various times since the late Mesoproterozoi

Earth History and Palaeogeography

Earth History and Palaeogeography PDF Author: Trond H. Torsvik
Publisher: Cambridge University Press
ISBN: 1107105323
Category : Science
Languages : en
Pages : 329

Get Book Here

Book Description
This book provides a complete Phanerozoic story of palaeogeography, using new and detailed full-colour maps, to link surface and deep-Earth processes.

The Proto-Andean Margin of Gondwana

The Proto-Andean Margin of Gondwana PDF Author: Robert J. Pankhurst
Publisher: Geological Society of London
ISBN: 9781862390218
Category : Science
Languages : en
Pages : 394

Get Book Here

Book Description
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).

Early Palaeozoic Peri-Gondwana Terranes

Early Palaeozoic Peri-Gondwana Terranes PDF Author: Michael G. Bassett
Publisher: Geological Society of America
ISBN: 9781862392861
Category : Geology, Stratigraphic
Languages : en
Pages : 0

Get Book Here

Book Description
Explores the tectonic, palaeogeographical and palaeobiogeographical evolution of the elements that made up the peri-Gondwanan collage.

Geodynamic Processes in the Andes of Central Chile and Argentina

Geodynamic Processes in the Andes of Central Chile and Argentina PDF Author: S.A. Sepúlveda
Publisher: Geological Society of London
ISBN: 1862396531
Category : Science
Languages : en
Pages : 459

Get Book Here

Book Description
This Special Publication arises from the UNESCO-sponsored IGCP 586-Y project `The tectonics and geomorphology of the Andes (32°–34°S): interplay between short-term and long-term processes’. It includes state-of-the-art reviews and original articles from a multidisciplinary perspective that investigate the complex interactions of tectonics and surface processes in the subduction-related orogen of the Andes of central Chile and Argentina (c. 27° –39°S). It aims to improve our understanding of tectonic and landscape evolution of the Andean range at different time scales, as well as the mutual relationship between internal and external mechanisms in Cenozoic deformation, mountain building, topographic evolution, basin development and mega-landslides occurrence across the flat slab to normal subduction segments. The geodynamic processes of the Andes of central Chile and Argentina are analysed from a number of subdisciplines of the Earth sciences, including tectonics, petrology, geophysics, geochemistry, structural geology, geomorphology, engineering geology, stratigraphy and sedimentology.