Geochemical and Isotopic Variations in Paleoproterozoic BIF and BMF Deposits PDF Download

Author: Christon Mark Achong
Publisher:
ISBN:
Category :
Languages : en
Pages : 480

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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 870

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Author: S. Sinha-Roy
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 306

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Book Description

Author: M.J. Bickle
Publisher: CRC Press
ISBN: 1000099636
Category : Science
Languages : en
Pages : 248

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A study on the Bellingwe Greenstone Belt, presenting the stratigraphy of the belt, its structure and tectonic setting, the sedimentology of what may be a rift basin, the geochemistry of the freshest Archaean komatiites yet found, and models of the evolution of the region.

Author: J. William Schopf
Publisher: Cambridge University Press
ISBN: 9780521366151
Category : Science
Languages : en
Pages : 1408

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First published in 1992, The Proterozoic Biosphere was the first major study of the paleobiology of the Proterozoic Earth.

Author: Gopendra Kumar
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 260

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Author: A.F. Trendall
Publisher: Elsevier
ISBN: 008086905X
Category : Science
Languages : en
Pages : 559

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Iron-Formation: Facts and Problems

Author: R. Mazumder
Publisher: Geological Society of London
ISBN: 1862397236
Category : Science
Languages : en
Pages : 349

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Book Description
This Memoir provides a comprehensive review of the Precambrian basins of the four Archaean nuclei of India (Dharwar, Bastar, Singhbhum and Aravalli-Bundelkhand), encompassing descriptions of the time-space distribution of sedimentary-volcanic successions, the interrelationship between tectonics and sedimentation, and basin histories. Studies of 22 basins within the framework of an international basin classification scheme deepen an understanding of the basin architecture especially for cratonic basins. Most Indian sedimentary successions formed as cratonic to extensional-margin rift and thermal-sag basins, some reflecting mantle plume movement, subcrustal heating or far-field stress. This Memoir shows that Phanerozoic plate-tectonic and sequence stratigraphic principles can be applied to the Precambrian basins of large Archaean provinces. The differences between the stratigraphic architecture of the Indian Precambrian and examples of Phanerozoic basin-fill successions elsewhere are ascribed to variable rates and intensities of the controls on accommodation and sediment supply, and changes inherent in the evolution of the hydrosphere-atmosphere and biosphere systems.

Author: Maarten J. De Wit
Publisher: Oxford University Press, USA
ISBN:
Category : Science
Languages : en
Pages : 850

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Book Description
This book is the first comprehensive compilation of data and ideas relating to the origin, evolution, and significance of the world's greenstone belts, and includes contributions from over 100 experts. In the first of two parts, reviews are presented on broad topics relating to the geology of greenstone belts and their surroundings, covering mainly post-1980 research. These include: historical, sedimentologic, volcanic, structural, metamorphic, metallogenic, and thermal aspects; summaries of mafic/ultramafic magnetism, strain, fluids, geophysics and deep structures; relations with associated granitoids, tectonic evolution, and geochronology; and field relationships. The second part takes a more focused look at the geology of specific cratons and individual greenstone belts worldwide, including Archaean, Proterozoic, and Phanerozoic examples. Detailed geologic maps on large and small scales, extensive tabulations of data, and short written summaries of the salient features are included for all belts. The book will be a valuable reference tool for academic and industrial researchers, students, explorationists, and anyone interested in the evolution of Earth processes over geologic time.

Author: Robert Hall
Publisher: Geological Society of London
ISBN: 9781862393295
Category : History
Languages : en
Pages : 400

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Book Description
Collision between Australia and SE Asia began in the Early Miocene and reduced the former wide ocean between them to a complex passage which connects the Pacific and Indian Oceans. Today, the Indonesian Throughflow passes through this gateway and plays an important role in global thermohaline flow. The surrounding region contains the maximum global diversity for many marine and terrestrial organisms. Reconstruction of this geologically complex region is essential for understanding its role in oceanic and atmospheric circulation, climate impacts, and the origin of its biodiversity. The papers in this volume discuss the Palaeozoic to Cenozoic geological background to Australia and SE Asia collision. They provide the background for accounts of the modern Indonesian Throughflow and oceanographic changes since the Neogene, and consider aspects of the region's climate history--