Subduction Dynamics At The Middle America Trench PDF Download
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Author | : Robyn K. Kelly |
Publisher | : |
Total Pages | : 356 |
Release | : 2003 |
Genre | : Beryllium |
ISBN | : |
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The cosmogenic radionuclide (10)Be is a unique tracer of shallow sediment subduction in volcanic arcs. The range in (10)Be enrichment in the Central American Volcanic Arc between Guatemala and Costa Rica is not controlled by variations in (10)Be concentrations in subducting sediment seaward of the Middle America Trench. Grain size is the principal control on the sedimentary (10)Be concentrations. (10)Be in fine-grained, terrigenous sediments is diluted by larger grained volcanogenic material. The sharp decrease in (10)Be enrichment in the Central American Volcanic Arc between southeastern Nicaragua and northwestern Costa Rica correlates with fault structure in the subducting Cocos plate. Offshore of Nicaragua, extensional faults associated with plate bending have throw equal to or greater than the overlying subducting sediment thickness. These faults enable efficient subduction of the entire sediment package by preventing relocation of the decollement within the downgoing sediments. Offshore of Costa Rica, the reduction of fault relief results in basement faults that do not penetrate the overlying sediment. A conceptual model is proposed in which the absence of significant basement roughness allows the decollement to descend into the subducting sediment column, leading to subsequent underplating and therefore removal of the bulk of the sediment layer that contains (10)Be.
Author | : |
Publisher | : |
Total Pages | : |
Release | : 2003 |
Genre | : |
ISBN | : |
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Funding for this work was provided by the National Science Foundation Graduate Research Fellowship, the WHOI Ocean Ventures Fund, the WHOI Deep Ocean Institute Graduate Fellowship, and Geological Society of America Graduate Research Grant #7179-02.
Author | : Bradley Matthew Battista |
Publisher | : |
Total Pages | : 134 |
Release | : 2001 |
Genre | : Imaging systems in seismology |
ISBN | : |
Download Large to Fine Scale Subduction Processes in the Middle America Trench Offshore of Guatemala Book in PDF, ePub and Kindle
Author | : Gabriele Morra |
Publisher | : John Wiley & Sons |
Total Pages | : 208 |
Release | : 2015-11-02 |
Genre | : Science |
ISBN | : 1118888855 |
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Subduction dynamics has been actively studied through seismology, mineral physics, and laboratory and numerical experiments. Understanding the dynamics of the subducting slab is critical to a better understanding of the primary societally relevant natural hazards emerging from our planetary interior, the megathrust earthquakes and consequent tsunamis. Subduction Dynamics is the result of a meeting that was held between August 19 and 22, 2012 on Jeju island, South Korea, where about fifty researchers from East Asia, North America and Europe met. Chapters treat diverse topics ranging from the response of the ionosphere to earthquake and tsunamis, to the origin of mid-continental volcanism thousands kilometers distant from the subduction zone, from the mysterious deep earthquakes triggered in the interior of the descending slabs, to the detailed pattern of accretionary wedges in convergent zones, from the induced mantle flow in the deep mantle, to the nature of the paradigms of earthquake occurrence, showing that all of them ultimately are due to the subduction process. Volume highlights include: Multidisciplinary research involving geology, mineral physics, geophysics and geodynamics Extremely large-scale numerical models with sliate-of-the art high performance computing facilities Overview of exceptional three-dimensional dynamic representation of the evolution of the Earth interiors and of the earthquake and subsequent tsunami dynamics Global risk assessment strategies in predicting natural disasters This volume is a valuable contribution in earth and environmental sciences that will assist with understanding the mechanisms behind plate tectonics and predicting and mitigating future natural hazards like earthquakes, volcanoes and tsunamis.
Author | : Gabriele Morra |
Publisher | : John Wiley & Sons |
Total Pages | : 208 |
Release | : 2015-09-23 |
Genre | : Science |
ISBN | : 1118888995 |
Download Subduction Dynamics Book in PDF, ePub and Kindle
Subduction dynamics has been actively studied through seismology, mineral physics, and laboratory and numerical experiments. Understanding the dynamics of the subducting slab is critical to a better understanding of the primary societally relevant natural hazards emerging from our planetary interior, the megathrust earthquakes and consequent tsunamis. Subduction Dynamics is the result of a meeting that was held between August 19 and 22, 2012 on Jeju island, South Korea, where about fifty researchers from East Asia, North America and Europe met. Chapters treat diverse topics ranging from the response of the ionosphere to earthquake and tsunamis, to the origin of mid-continental volcanism thousands kilometers distant from the subduction zone, from the mysterious deep earthquakes triggered in the interior of the descending slabs, to the detailed pattern of accretionary wedges in convergent zones, from the induced mantle flow in the deep mantle, to the nature of the paradigms of earthquake occurrence, showing that all of them ultimately are due to the subduction process. Volume highlights include: Multidisciplinary research involving geology, mineral physics, geophysics and geodynamics Extremely large-scale numerical models with sliate-of-the art high performance computing facilities Overview of exceptional three-dimensional dynamic representation of the evolution of the Earth interiors and of the earthquake and subsequent tsunami dynamics Global risk assessment strategies in predicting natural disasters This volume is a valuable contribution in earth and environmental sciences that will assist with understanding the mechanisms behind plate tectonics and predicting and mitigating future natural hazards like earthquakes, volcanoes and tsunamis.
Author | : Cliffort H. Thurber |
Publisher | : Springer Science & Business Media |
Total Pages | : 271 |
Release | : 2013-11-11 |
Genre | : Science |
ISBN | : 9401595364 |
Download Advances in Seismic Event Location Book in PDF, ePub and Kindle
Advances in Seismic Event Location provides a broad overview of the fundamental issues involved in seismic event location, and presents a variety of state-of-the-art location methods and applications at a wide range of spatial scales. Three important themes in the book are: seismic monitoring for a Comprehensive Nuclear-Test-Ban Treaty (CTBT), seismic event location in three-dimensional Earth models, and methods for multiple-event location. Each chapter contains background material to help readers less familiar with the topics covered, as well as to provide abundant references for readers interested in probing deeper into a topic. However, most of the emphasis is on recent advances in methodology and their application. Audience: The book is intended primarily for academic and professional researchers and graduate students in seismology.
Author | : Amy E. Draut |
Publisher | : Geological Society of America |
Total Pages | : 446 |
Release | : 2008-01-01 |
Genre | : Science |
ISBN | : 0813724368 |
Download Formation and Applications of the Sedimentary Record in Arc Collision Zones Book in PDF, ePub and Kindle
"Inspired by a GSA Penrose Conference held in 2005 (cosponsored by the International Association of Sedimentologists and the British Sedimentological Research Group), the 17 papers in this volume explore sedimentary environments in arc collision zones and their utility in recording the evolution of modern and ancient convergent margins. The first set of papers in the collection focuses on formation and evolution of the sedimentary record in arc settings and arc collision zones, concentrating on modern intra-oceanic examples. Papers include studies of flexural modeling and factors that affect development of siliciclastic and carbonate deposits around modern arcs. The second half of the volume presents new applications of arc sedimentary records. These relate primarily to constraining tectonic events in the evolution of arc systems, but also concern the links among tectonic uplift, collision, and geomorphic and climatic feedback mechanisms in arc collision zones."--Publisher's website.
Author | : |
Publisher | : American Geophysical Union |
Total Pages | : 224 |
Release | : 1998 |
Genre | : Desert ecology |
ISBN | : 9780875905 |
Download Ecosystem Dynamics in a Polar Desert Book in PDF, ePub and Kindle
Presents information from the primary abiotic forces defining the system, and from the present hydrology, biogeochemistry and physics of major sites of organic carbon production of the McMurdo Dry Valleys. Additionally, research on the physical, chemical, and biological properties of the dry valley soils is included. The role of environmental management in long-term ecological studies is also addressed. The accompanying CDROM provides details and scale to visualize the McMurdo Dry Valleys from an ecosystem perspective.
Author | : Zhong-Hai Li |
Publisher | : Frontiers Media SA |
Total Pages | : 244 |
Release | : 2022-11-07 |
Genre | : Science |
ISBN | : 2832502989 |
Download Subduction and Collision Dynamics of Tectonic Plates Book in PDF, ePub and Kindle
Author | : Serge Lallemand |
Publisher | : Springer Science & Business Media |
Total Pages | : 278 |
Release | : 2009-02-11 |
Genre | : Science |
ISBN | : 3540879749 |
Download Subduction Zone Geodynamics Book in PDF, ePub and Kindle
Subduction is a major process that plays a first-order role in the dynamics of the Earth. The sinking of cold lithosphere into the mantle is thought by many authors to be the most important source of energy for plates driving forces. It also deeply modifies the thermal and chemical structure of the mantle, producing arc volcanism and is responsible for the release of most of the seismic energy on Earth. There has been considerable achievements done during the past decades regarding the complex interactions between the various processes acting in subduction zones. This volume contains a collection of contributions that were presented in June 2007 in Montpellier (France) during a conference that gave a state of the art panorama and discussed the perspectives about "Subduction Zone Geodynamics". The papers included in this special volume offer a unique multidisciplinary picture of the recent research on subduction zones geodynamics. They are organized into five main topics: Subduction zone geodynamics, Seismic tomography and anisotropy, Great subduction zone earthquakes, Seismogenic zone characterization, Continental and ridge subduction processes. Each of the 13 papers collected in the present volume is primarily concerned with one of these topics. However, it is important to highlight that papers always treat more than one topic so that all are related lighting on different aspects of the complex and fascinating subduction zones geodynamics.