S O Francisco Craton Eastern Brazil
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S O Francisco Craton Eastern Brazil
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Author : Monica Heilbron
language : en
Publisher: Springer
Release Date : 2016-12-05
S O Francisco Craton Eastern Brazil written by Monica Heilbron and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-05 with Science categories.
The region of the São Francisco river valley in eastern Brazil encompasses two main components of the geologic framework of the South American continent: the São Francisco craton and its marginal orogenic belts. Cratons, as the oldest, differentiated and relatively stable pieces of the continental lithosphere, preserve a substantial part of the Earth's memory. Orogenic belts, on the other hand, record collisional processes that occurred during a limited time span. Because of their topographic relief, mountain belts developed along craton margins provide however access to rock successions not exposed in the low lands of the adjacent cratons. The combination of geologic information obtained in cratonic domains and their marginal orogenic belts thus form the basis for deciphering substantial periods of Earth’s history. Corresponding to the most intensively studied portion of the Precambrian nucleus of the South American plate, the São Francisco craton and its margins host a rock record that spans from the Paleoarchean to the Cenozoic. Precambrian sedimentary successions that witness ancient Earth processes - many of them of global significance - are especially well preserved and exposed in this region. With all these attributes the São Francisco craton together with its fringing orogenic belts can be viewed as a ‘continent within a continent’ or a ‘continent in miniature’.
Petrologic And Geochronologic Evolution Of The Oldest Segments Of The S O Francisco Craton Brazil
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Author : M. C. H. Figueiredo
language : en
Publisher:
Release Date : 1995
Petrologic And Geochronologic Evolution Of The Oldest Segments Of The S O Francisco Craton Brazil written by M. C. H. Figueiredo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Cratons categories.
West Gondwana
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Author : Robert J. Pankhurst
language : en
Publisher: Geological Society of London
Release Date : 2008
West 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 2008 with Geology, Stratigraphic categories.
Some 75 years after the visionary work of Wegener and du Toit, Neoproterozoic to Mesozoic geological correlations between South America and Africa are re-examined in the light of plate tectonics and modern geological investigation (structural and metamorphic studies, stratigraphic logging, geochemistry, geochronology and palaeomagnetism). The book presents both reviews and new research relating to the shared Gondwana origins of countries facing each other across the South Atlantic Ocean, especially Brazil, Argentina, Cameroon, Nigeria, Angola, Namibia and South Africa.
Geology Of Southwest Gondwana
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Author : Siegfried Siegesmund
language : en
Publisher: Springer
Release Date : 2018-02-02
Geology Of Southwest Gondwana written by Siegfried Siegesmund and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-02 with Science categories.
This book focuses on the geological evolution of Southwest (SW) Gondwana and presents state-of-the-art insights into its evolution. It addresses the diachronic assembly of continental fragments derived from the break-up of the Rodinia supercontinent later amalgamated to build SW Gondwana during the Neoproterozoic–Cambrian transition, which on a global scale includes parts of present-day South America, Africa and Madagascar. The book presents 24 state-of-the-art reviews including the most crucial controversies. Most experienced scientists about the geology of SW Gondwana from Europe, Africa, South America and Australia present contributions on key areas addressing the interactions between the main cratons and fold belts on both sides of the South Atlantic Ocean. Chapters related to the geology of the major Archean- Paleoproterozoic cratons and Neoproterozoic Brasiliano/Pan-African fold belts enable readers to gain an in-depth understanding of the tectonometamorphic and magmatic evolution of SW Gondwana. The book covers a wide range of issues including metallogenetic, sedimentary, paleobiological and paleoclimatic processes and allows a deep insight into this key period of the Earth’s evolution.
Cratonic Basin Formation
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Author : M. C. Daly
language : en
Publisher: Geological Society of London
Release Date : 2018-12-03
Cratonic Basin Formation written by M. C. Daly 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 2018-12-03 with Science categories.
Cratonic basins are large, distinctive features of the continental crust. They are preferentially developed on thick continental lithosphere, are typically sub-circular in shape and subside over periods of hundreds of millions of years. They are also endowed with significant resources. However, in spite of their location in continental interiors and often well-known geology, the subsidence driving mechanism and tectonic setting of these basins remains controversial. This volume presents both lithospheric and basin scale datasets acquired specifically to interrogate the tectonic process of cratonic basin formation. Focused on the Silurian to Triassic Parnaíba cratonic basin of Brazil, the papers discuss the results of a multidisciplinary basin analysis project comprising new geophysical, geological and geochemical data. This unique dataset enables the characterization of the lithospheric crust and mantle beneath the Parnaíba Basin, constrains the detailed evolution of the basin itself, and enables comparisons with cratonic basins globally. Several convergent themes emerge providing new and powerful constraints for models of the driving mechanisms of these enigmatic basins.
Ancient Supercontinents And The Paleogeography Of Earth
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Author : Lauri J. J Pesonen
language : en
Publisher: Elsevier
Release Date : 2021-10-06
Ancient Supercontinents And The Paleogeography Of Earth written by Lauri J. J Pesonen and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-06 with Science categories.
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
Lagoa Santa Karst Brazil S Iconic Karst Region
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Author : Augusto S. Auler
language : en
Publisher: Springer Nature
Release Date : 2020-01-22
Lagoa Santa Karst Brazil S Iconic Karst Region written by Augusto S. Auler and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-22 with Science categories.
This book discusses the Lagoa Santa Karst, which has been internationally known since the pioneering studies of the Danish naturalist Peter Lund in the early 1800s. It covers the speleogenesis, geology, vegetation, fauna, hydrogeology, geomorphology, and anthropogenic use of the Lagoa Santa Karst and is the first English-language book on this major karst area. The area, which has been at the heart of the debate on the origin and age of human colonization in the Americas, is characterized by a classical and scenic karst landscape with limestone cliffs, karst lakes and karst plains, in addition to numerous solution dolines. More than 1,000 caves have been documented in the area, many with significant archeological and paleontological value. Despite its great importance, the Lagoa Santa Karst faces severe environmental threats due to limestone mining and the expansion of the metropolis of Belo Horizonte and its surrounding towns. The growing recognition of the area’s remarkable significance has led to increasing concern, and a number of protected areas have now been established, improving the conservation status of this landmark karst area.
Dyke Swarms Keys For Geodynamic Interpretation
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Author : Rajesh Srivastava
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-03-22
Dyke Swarms Keys For Geodynamic Interpretation written by Rajesh Srivastava and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-22 with Science categories.
Dykes occur in a wide variety of geological and tectonic settings and their detailed study through space and time is imperative for understanding several geological events. Dykes are believed to be an integral part of continental rifting and when they occur as spatially extensive swarms of adequate size, they can be of immense utility in continental reconstructions and also help to identify Large Igneous Provinces (LIPs). It is known that continental flood basalts and major dyke swarms have their origin related in some way to the up-rise of hot mantle plumes which may lead to rifting and eventual continental break-up. Dykes signify crustal extension and are important indicators of crustal stabilisation events, supercontinental assembly and dispersal, crust-mantle interaction and play a significant role in the delineation of crustal provinces as well as in deciphering crustal evolution events. Many economic mineral deposits of the world are also associated with a variety of dykes. The volume will provide state-of-the-art information on all aspects of dykes with emphasis on the origin, evolution and emplacement of dykes.
The West African Orogens And Circum Atlantic Correlatives
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Author : R.D. Dallmeyer
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
The West African Orogens And Circum Atlantic Correlatives written by R.D. Dallmeyer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
In December, 1987, Project 233 of the International Geological Correlation Pro gram hosted an international conference in Nouakchott, Mauritania. Discussions were focused on the "Tectonothermal Evolution Of The West Mrican Orogens And Circum-Atlantic Terrane Linkages". A wealth of new information was pre sented during the conference, and it was apparent that the time was appropriate to prepare a systematic volume dealing with the geology of northwest Mrica. The present volume is an outgrowth of this conference, but is not merely a compilation of the papers presented in Nouakchott. Instead, it represents a coordinated vol ume designed to present a balanced, comprehensive view of our present under standing of West Mrican geology and potential correlations in other Circum-At lantic Paleozoic orogens. We sincerely appreciate the efforts of all the reviewers whose comments have greatly helped to improve the quality of this volume. We also thank the various contributors for their diligence and perseverance in manuscript preparation. The calibre of the present volume is a reflection of their labor. Athens/Marseille, Autumn 1990 R. D. DALLMEYER J. P. LECORCHE Contents Chapter 1 Introduction . . . . . . . . . . . . . . . 3 R. D. DALLMEYER and J. P. LECORCHE Chapter 2 Geophysics and the Crustal structure of West Africa 9 J. ROUSSEL and A. LESQUER Chapter 3 Crystalline Basement of the West African Craton . . . . . . . . . . . . .. . . 31 .
Tropical Marine Environments Of Brazil
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Author : José Maria Landim Dominguez
language : en
Publisher: Springer Nature
Release Date : 2023-03-27
Tropical Marine Environments Of Brazil written by José Maria Landim Dominguez and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-27 with Science categories.
This book provides an overview of the tropical marine environments of Brazil and a multi-disciplinary assessment of the impact of ongoing climate change in these environments. These changes will affect physical, biological and biogeochemical characteristics of coastal zones and oceans, modifying their ecological structure, their functions and the various services provided to humans and have the potential of causing severe socioeconomic impacts in local (coastal zone), regional (continental shelf and shallow seas) and global (ocean) scales. The Tropical Brazil presents a unique opportunity to evaluate how spatial and temporal heterogeneity influences the response and resilience of marine environments to climate changes. This region comprises the main reef constructions of the Western South Atlantic Ocean, the majority of the Brazilian deltas, one of the longest mangrove areas of the world, a very narrow and shallow continental shelf, extreme variations in sediment and nutrient flows, as well as undeniable importance in transferring heat and mass between hemispheres.