Intra-oceanic Subduction Systems
Intra-oceanic Subduction Systems

Author: Robert D. Larter

Publisher: Geological Society of London

Published: 2003

Total Pages: 362

ISBN-13: 9781862391475

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Recycling of oceanic plate back into the Earth's interior at subduction zones is one of the key processes in Earth evolution. Volcanic arcs, which form above subduction zones, are the most visible manifestations of plate tectonics, the convection mechanism by which the Earth loses excess heat. They are probably also the main location where new continental crust is formed, the so-called 'subduction factory' About 400f modern subduction zones on Earth are intra-oceanic. These subduction systems are generally simpler than those at continental margins as they commonly have a shorter history of subduction and their magmas are not contaminated by ancient sialic crust. They are therefore the optimum locations for studies of mantle processes and magmatic addition to the crust in subduction zones.

Backarc Basins
Backarc Basins

Author: Brian Taylor

Publisher: Springer Science & Business Media

Published: 1995-05-31

Total Pages: 560

ISBN-13: 9780306449376

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Experts in the field offer the first comprehensive review of the tectonics and magmatism of backarc basins, covering their initial rift stage to mature spreading. Complete with numerous illustrations, each of the twelve chapters focuses on a young, active backarc basin of the circum-Pacific-where volcano-tectonic processes are best studied because of their activity. Key themes in this volume include volcano-tectonics setting; cause and location; rift magmas; and hydrothermal activity. Researchers also present models of the dynamic processes occurring in backarc basins.

Deep Marine Systems
Deep Marine Systems

Author: Kevin T. Pickering

Publisher: John Wiley & Sons

Published: 2015-11-09

Total Pages: 691

ISBN-13: 1405125780

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Deep-water (below wave base) processes, although generally hidden from view, shape the sedimentary record of more than 65% of the Earth’s surface, including large parts of ancient mountain belts. This book aims to inform advanced-level undergraduate and postgraduate students, and professional Earth scientists with interests in physical oceanography and hydrocarbon exploration and production, about many of the important physical aspects of deep-water (mainly deep-marine) systems. The authors consider transport and deposition in the deep sea, trace-fossil assemblages, and facies stacking patterns as an archive of the underlying controls on deposit architecture (e.g., seismicity, climate change, autocyclicity). Topics include modern and ancient deep-water sedimentary environments, tectonic settings, and how basinal and extra-basinal processes generate the typical characteristics of basin slopes, submarine canyons, contourite mounds and drifts, submarine fans, basin floors and abyssal plains.

Back-Arc Spreading Systems
Back-Arc Spreading Systems

Author: David M. Christie

Publisher: American Geophysical Union

Published: 2006-01-10

Total Pages: 328

ISBN-13:

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Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 166. New ocean crust is continuously created where tectonic plates diverge. A distinctive type of oceanic crust is formed by back-arc spreading systems that parallel oceanic island arcs on the side away from the subducting plate. Volatile-rich and spatially variable, back-arc spreading systems are a natural laboratory for multi-disciplinary studies of seafloor creation, the flow of magma from the deep earth, and the hydrothermal ecosystems that this flow sustains. Derived from the prestigious Ridge 2000 InterRidge Theoretical Institute held in 2004, Back-Arc Spreading Systems: Geological, Biological, Chemical, and Physical Interactions reviews the state of the science, with select case studies. Experienced researchers in, and students of, marine geology, biological oceanography, marine geochemistry, volcanology, petrology, and geo- and paleomagnetism will find this volume a significant resource now and for the near future.