Crustal Evolution of India and Antarctica

Crustal Evolution of India and Antarctica
Author: N.C. Pant
Publisher: Geological Society of London
Total Pages: 362
Release: 2017-10-13
Genre: Science
ISBN: 1786203197

The Proterozoic aeon involved at least three major continental readjustments. India and Antarctica appear in most models of supercontinent reconstructions, but their relative position has been the subject of debate. High-resolution petrological and geochronological data, especially from the Proterozoic mobile belts, provide the principal means of resolving this issue. The ice-covered nature of Antarctica allows only limited access to the rocks, and then only in coastal tracts, so detailed studies in more accessible Proterozoic terrains in India assume added significance. This volume, a follow-up to the XII International Symposium on Antarctic Earth Science, Goa (a SCAR symposium), provides new data from selected locations in east Antarctica (Enderby Land and Dronning Maud Land) and from India, including the Eastern Ghats Mobile Belt (EGMB), Chota Nagpur Gneissic Complex, the Khasi Hills and the Aravalli–Delhi Mobile Belt. The presented geochronological data, constrained by petrological studies, are expected to provide new insights, especially into the EGMB–east Antarctica connection and the rate of continental readjustments in the post-Rodinia break-up.

Antarctica and Supercontinent Evolution

Antarctica and Supercontinent Evolution
Author: S.L. Harley
Publisher: Geological Society of London
Total Pages: 241
Release: 2014-01-24
Genre: Science
ISBN: 1862393672

Antarctica preserves a rock record that spans three and a half billion years of history and has a remarkable story to tell about the evolution of our Earth, from the hottest crustal rocks yet found in an orogenic system, to the assembly and breakup of Gondwana in the Phanerozoic. This volume highlights our improved understanding of the tectonic events that have shaped Antarctica and how these potentially relate to supercontinent assembly and fragmentation. The internal constitution of the East Antarctic Shield is assessed using information available from the basement geology and from detritus preserved as Mesozoic sediments in the Trans Antarctic Mountains. Accretionary orogenesis along the proto-Pacific margin of Antarctica is examined and the volumes of intracrustal melting compared with juvenile magma additions in these complex orogenic systems assessed. This special volume demonstrates the diversity of approaches required to elucidate and understand crustal evolution and evaluate the supercontinent concept.

Climate Change and the White World

Climate Change and the White World
Author: Prem Shankar Goel
Publisher: Springer Nature
Total Pages: 256
Release: 2019-10-14
Genre: Science
ISBN: 3030216799

This book showcases the results of studies pertaining to climate changes in the Polar Regions - Arctic-Antarctic-Himalaya. It discusses the significant variations due to thinning of sea ice in the Arctic, insights on the first Indian Arctic multi-sensor mooring (IndARC), political context of major geological and tectonic features of Arctic Ocean, climate change and its predicted impacts on fisheries and coastal communities. The book also contains the work pursued under the National Mission for Sustaining the Himalayan Ecosystems, aiming towards strengthening the capacities of farmers through appropriate Lab-to-Land intervention to combat climate change issues. Discussions on various models like WRF (Weather Research and Forecasting), Regional Climate Model (RegCM4) pertaining to Himalaya have been highlighted to gain more insights on climate change.

Geological Evolution of the Precambrian Indian Shield

Geological Evolution of the Precambrian Indian Shield
Author: M.E.A. Mondal
Publisher: Springer
Total Pages: 753
Release: 2018-05-26
Genre: Science
ISBN: 3319896989

This book presents findings from research into the Precambrian history of the Indian shield obtained using state-of-the-art technology. It demonstrates a paradigm shift towards studying the Precambrian shield regions using petrological, geochemical, structural, metallogenic, sedimentological and paleobiological data from the rocks in the Precambrian shield area, and presents a collection of contributions on these diverse topics that help to reconstruct the Precambrian evolution of the Indian Shield.

Dyke Swarms - Time Markers of Crustal Evolution

Dyke Swarms - Time Markers of Crustal Evolution
Author: E. Hanski
Publisher: CRC Press
Total Pages: 282
Release: 2006-09-28
Genre: Science
ISBN: 1000006719

Dyke swarms are remnants of large igneous provinces, and are pointers of continental break-up events, as well as indicators for ancient continental reconstructions. These global geodynamic aspects are of crucial significance in tectonics, and with recent developments in high-precision age, dating it has become possible to enter these short-lived ma

Proterozoic East Gondwana

Proterozoic East Gondwana
Author: Masaru Yoshida
Publisher: Geological Society of London
Total Pages: 486
Release: 2003
Genre: Science
ISBN: 9781862391253

This volume focuses on Late Mesoproterozoic to early Cambrian events related to Gondwana assembly and break up. The nineteen papers provide a comprehensive review including advanced knowledge and new data from all critical areas of East Gondwana. The recent knowledge of the evolution of East Gondwana, which was regarded as an integral part of the Mesoproterozoic supercontinent Rodinia, is the major theme of the volume, which is reinforced by highlighting this radical and new understanding of the evolution of this region.

Plate Tectonics & Crustal Evolution

Plate Tectonics & Crustal Evolution
Author: Kent C. Condie
Publisher: Elsevier
Total Pages: 321
Release: 2013-10-22
Genre: Science
ISBN: 1483100146

Plate Tectonics & Crustal Evolution, Second Edition covers the role of plate tectonics in the geologic past in light of existing geologic evidence, and examples of plate reconstructions. The book discusses the important physical and chemical properties of the crust and upper mantle in terms of models for crustal origin and evolution. The text also describes sea-floor spreading; magma associations; plate tectonics and continental drift. The phanerozoic orogenic systems and the precambrian crustal development are also tackled. The book will be invaluable to students in the earth sciences and to various specialists in the geological sciences.

Volcanism in Antarctica: 200 Million Years of Subduction, Rifting and Continental Break-up

Volcanism in Antarctica: 200 Million Years of Subduction, Rifting and Continental Break-up
Author: J.L. Smellie
Publisher: Geological Society of London
Total Pages: 802
Release: 2021-06-09
Genre: Science
ISBN: 178620536X

This memoir is the first to review all of Antarctica’s volcanism between 200 million years ago and the Present. The region is still volcanically active. The volume is an amalgamation of in-depth syntheses, which are presented within distinctly different tectonic settings. Each is described in terms of (1) the volcanology and eruptive palaeoenvironments; (2) petrology and origin of magma; and (3) active volcanism, including tephrochronology. Important volcanic episodes include: astonishingly voluminous mafic and felsic volcanic deposits associated with the Jurassic break-up of Gondwana; the construction and progressive demise of a major Jurassic to Present continental arc, including back-arc alkaline basalts and volcanism in a young ensialic marginal basin; Miocene to Pleistocene mafic volcanism associated with post-subduction slab-window formation; numerous Neogene alkaline volcanoes, including the massive Erebus volcano and its persistent phonolitic lava lake, that are widely distributed within and adjacent to one of the world’s major zones of lithospheric extension (the West Antarctic Rift System); and very young ultrapotassic volcanism erupted subglacially and forming a world-wide type example (Gaussberg).