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Subduction Zone Geodynamics

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".

Author : Serge Lallemand

Release : 2009-02-11

Publisher : Springer Science & Business Media

ISBN : 3540879749

File Size : 73.51 MB

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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.

Collision and Collapse at the Africa-Arabia-Eurasia Subduction Zone \

It then examines the role of mantle dynamics in slab and subduction zone evol -
ution to outline those key processes that ... example , a synthesis of observations
of , and interpretations concerning , known subduction geodynamics elements .

Author : Douwe J. J. van Hinsbergen

Release : 2009

Publisher : Geological Society of London

ISBN : 9781862392700

File Size : 25.80 MB

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The Mediterranean and northern Arabian regions provide a unique natural laboratory to constrain geodynamics associated with arc-continent and continent-continent collision and subsequent orogenic collapse by analysing regional and temporal distributions of the various elements in the geological archive. This book combines thirteen new contributions that highlight timing and distribution of the Cretaceous to Recent evolution of the Calabrian, Carpathian, Aegean and Anatolian segments of the Africa-Arabia-Eurasia subduction zone. These are subdivided into five papers documenting the timing and kinematics of Cretaceous arc-continent collision, and Eocene and Miocene continent-continent collision in Anatolia, with westward extrusion of Anatolia as a result. Eight papers provide an overview and new data from stratigraphy, structure, metamorphism and magmatism, covering the geological consequences of the largely Neogene collapse that characterizes the segments of interest, in response to late stage reorganization of the subduction zone, and the roll-back and break-off of (segments of) the subducting slab.

Subduction

This book is devoted to the quantitative physical modeling of subduction and subduction-related processes.

Author : Alexander I. Shemenda

Release : 2012-12-06

Publisher : Springer Science & Business Media

ISBN : 9401109524

File Size : 60.76 MB

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This book is devoted to the quantitative physical modeling of subduction and subduction-related processes. It presents a coherent description of the modeling method (including similarity criteria, and a novel applied experimental technique), results from model experiments, theoretical analysis of results on the basis of continuum mechanics, and their geodynamic interpretation. Subduction is modeled in general as well as applied to particular regions using both 2-D and 3-D approaches, with both slab-push and slab-pull driving forces. The modeling covers all stages from subduction initiation to `death', different regimes of subduction producing back arc extension and compression, blocking of subduction and jumps of subduction zone, arc-continent collision and continental subduction. This work is for geologists and geophysicists interested in geodynamics of the convergent plate boundaries and in mechanics of the lithosphere.

Subduction Dynamics

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 ...

Author : Gabriele Morra

Release : 2015-11-02

Publisher : John Wiley & Sons

ISBN : 1118888855

File Size : 31.15 MB

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Co-published with John Wiley & Sons, Inc.

The Geodynamics of the Aegean and Anatolia

Tuncay Taymaz, Yücel Yilmaz, Yildirim Dilek. A model for the Hellenic subduction
zone in the area of Crete based on seismological investigations T . MEIER ' , D .
BECKER ' , B . ENDRUN ' , M . RISCHE ' , M . BOHNHOFF ? , B . STÖCKHERT ...

Author : Tuncay Taymaz

Release : 2007

Publisher : Geological Society of London

ISBN : 9781862392397

File Size : 31.62 MB

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This book contains current results and ideas regarding the geodynamics of the Aegean and Anatolia.

Mechanics problems in geodynamics. 1 (1995)

1995 Birkhauser Verlag, Basel Coupling of Tectonic Loading and Earthquake
Fault Slips at Subduction Zones KELIN ... A two-dimensional finite-element model
of a subduction zone with viscoelastic rheology has been used to investigate the
 ...

Author : Ren Wang

Release : 1995

Publisher : Springer Science & Business Media

ISBN : 9783764351045

File Size : 25.3 MB

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Reprint from Pure and Applied Geophysics (PAGEOPH), Volume 145 (1995), No. 3/4

Collision Zone Geodynamics

A late Cretaceous - Tertiary magmatic arc developed above this subduction zone
that resulted into the formation of Ladakh batholith which is also known as the '
Ladakh magmatic arc ' . The presence of ophiolitic mélange suit of rocks to the ...

Author :

Release : 2008

Publisher :

ISBN :

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Papers presented at the Workshop on "Collision Zone Geodynamics," held at Dehra Dun, 20-21 September 2007.

Continent Formation Through Time

2012, 2013) and geodynamic constraints taken from the literature (see section '
Geological background'), two main periods of regional retreating subduction
zone geodynamics (overriding plate extension) and two main periods of
advancing ...

Author : N.M.W. Roberts

Release : 2015-02-16

Publisher : Geological Society of London

ISBN : 1862393753

File Size : 70.66 MB

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The continental crust is our archive of Earth history, and the store of many natural resources; however, many key questions about its formation and evolution remain debated and unresolved: What processed are involved in the formation, differentiation and evolution of continental crust, and how have these changed throughout Earth history?How are plate tectonics, the supercontinent cycle and mantle cooling linked with crustal evolution?What are the rates of generation and destruction of the continental crust through time?How representative is the preserved geological record? A range of approaches are used to address these questions, including field-based studies, petrology and geochemistry, geophysical methods, palaeomagnetism, whole-rock and accessory-phase isotope chemistry and geochronology. Case studies range from the Eoarchaean to Phanerozoic, and cover many different cratons and orogenic belts from across the continents.

Geodynamics of Lithosphere and Earth's Mantle

Japan, and Izu-Bonin subduction zones using shear-wave splitting in S phases
from local earthquakes and in teleseismic core ... The observed splitting in all four
subduction zones is consistent with a model in which the lower transition zone ...

Author : Jaroslava Plomerova

Release : 1998-04

Publisher : Springer Science & Business Media

ISBN : 9783764359072

File Size : 68.88 MB

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Reprint from Pure and Applied Geophysics (PAGEOPH), Volume 151 (1998), No. 2/3/4

Geodynamics

Artemis chasma has a radius of curvature similar to that of the South Sandwich
subduction zone on the Earth. ... pointed out in Section 1.2, zones of deformation
in the continental crust accommodate the geometrical incompatibilities
associated ...

Author : Donald L. Turcotte

Release : 2014-04-07

Publisher : Cambridge University Press

ISBN : 1139915851

File Size : 67.78 MB

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Essential reading for any Earth scientist, this classic textbook has been providing advanced undergraduate and graduate students with the fundamentals needed to develop a quantitative understanding of the physical processes of the solid earth for over thirty years. This third edition has two completely new chapters covering numerical modelling and geophysical MATLAB applications, and the text is now supported by a suite of online MATLAB codes that will enable students to grasp the practical aspects of computational modelling. The book has been brought fully up to date with the inclusion of new material on planetary geophysics and other cutting edge topics. Exercises within the text allow students to put the theory into practice as they progress through each chapter and carefully selected further reading sections guide and encourage them to delve deeper into topics of interest. Answers to problems available within the book and also online, for self-testing, complete the textbook package.

Geodynamic Evolution of the Southernmost Andes

Subduction Zone Geodynamics. Springer, Berlin, pp 227–246 Scasso RA,
McArthur JM, Del Río CJ, Martínez S, Thirlwall MF (2001) 87 Sr/86 Sr Late
Miocene age of fossil molluscs in the 'Entrerriense'of the Valdés Peninsula (
Chubut, ...

Author : Matías C. Ghiglione

Release : 2016-07-07

Publisher : Springer

ISBN : 3319397273

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This book focuses on the strong relation between the tectonic evolution of the Southernmost Andes and their closest southern neighbors, the Scotia Sea and Antarctica. Some episodes are related to processes of global significance such as the opening of the Drake Passage, which is somehow linked to Late Cenozoic cooling. Many of the topics covered in the book are subjects of heated debates; as such, not only the latest data and approaches are presented, but different points of view as well. The chapters examine the interrelation between main geodynamic processes and plate tectonics from a multidisciplinary perspective. This Paleozoic-Cenozoic geodynamic evolution of the Southernmost Andes involved interrelated metamorphic, magmatic, sedimentary, and deformational processes directed by plate tectonics. The main topics cover the evolution of the Rocas Verdes basin and the Cordillera Darwin high-grade metamorphic complex, growth of the Patagonian Batholith, development of the Patagonian Orocline, the opening of the Drake Passage during growth of the Scotia Sea, evolution of the Austral-Magallanes foreland basin and its related fold and thrust belt.

Geodynamics

One of the most important observational constraints on the geodynamics of
Venus comes from studies of impact cratering on the ... Artemis chasma has a
radius of curvature similar to that of the South Sandwich subduction zone on the
Earth.

Author : Donald L. Turcotte

Release : 2002-03-25

Publisher : Cambridge University Press

ISBN : 9780521666244

File Size : 59.24 MB

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New, completely up-to-date edition of the classic textbook for students in geology and geophysics.

Geodynamics of the Lithosphere

However, it is absolutely crucial to understand these causes or: "driving forces", if we are to explain the tectonic evolution of our planet. This book deals with the dynamic description of geological processes.

Author : Kurt Stüwe

Release : 2013-03-09

Publisher : Springer Science & Business Media

ISBN : 3662049805

File Size : 24.68 MB

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The large scale structure of the earth is caused by geodynamic processes which are explained using energetic, kinematic and dynamic descriptions. While "geodynamic processes" are understood to include a large variety of processes and the term is used by earth scientists quite loosely, the methods of their description involve well defined fields. Energetic descriptions are in volved with distribution of energy in our planet, typically expressed in terms of heat and temperature. Kinematic descriptions describe movements using velocities, strains and strain rates and Dynamic descriptions indicate how stresses and forces behave. As structural and metamorphic geologists we document in the field only the consequences of geological processes. The underlying causes are much harder to constrain directly. However, it is absolutely crucial to understand these causes or: "driving forces", if we are to explain the tectonic evolution of our planet. This book deals with the dynamic description of geological processes. Our descriptions relate causes and consequences - tectonic processes with field observations. In many cases, we will use equations as a concise form to describe processes and observations in nature. As we will be dealing mostly with large scale tectonic questions, the observations that we shall use are also on a large scale. For example, we shall use observations on the elevation (Fig. 1.1, 1.2) and heat flow of mountain ranges, the thickness of continents and the water depth of the oceans.

Geodynamics

The seismicity of the Philippine plate is localised only in its borders along the
subduction zones surrounding it; internal deformation of the Philippine plate is
very small except in the region of the Izu-Bonin collision zone. The seismicity of
Asia, ...

Author : L. Jolivet

Release : 2001-01-01

Publisher : CRC Press

ISBN : 9789058092205

File Size : 29.98 MB

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Translation of ‘Geodynamique’, Paris, Dunod, 1998.

Numerical Solution of Partial Differential Equations on Parallel Computers

12 Developing a Geodynamics Simulator with PETSc Matthew G. Knepley1,
Richard F. Katz2, and Barry Smith1 1 Mathematics ... 12.1 Geodynamics of
Subduction Zones Subduction zones, where one of the Earth's surface plates
collides with ...

Author : Are Magnus Bruaset

Release : 2006-03-05

Publisher : Springer Science & Business Media

ISBN : 3540316191

File Size : 36.76 MB

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Since the dawn of computing, the quest for a better understanding of Nature has been a driving force for technological development. Groundbreaking achievements by great scientists have paved the way from the abacus to the supercomputing power of today. When trying to replicate Nature in the computer’s silicon test tube, there is need for precise and computable process descriptions. The scienti?c ?elds of Ma- ematics and Physics provide a powerful vehicle for such descriptions in terms of Partial Differential Equations (PDEs). Formulated as such equations, physical laws can become subject to computational and analytical studies. In the computational setting, the equations can be discreti ed for ef?cient solution on a computer, leading to valuable tools for simulation of natural and man-made processes. Numerical so- tion of PDE-based mathematical models has been an important research topic over centuries, and will remain so for centuries to come. In the context of computer-based simulations, the quality of the computed results is directly connected to the model’s complexity and the number of data points used for the computations. Therefore, computational scientists tend to ?ll even the largest and most powerful computers they can get access to, either by increasing the si e of the data sets, or by introducing new model terms that make the simulations more realistic, or a combination of both. Today, many important simulation problems can not be solved by one single computer, but calls for parallel computing.

Title

We find a minimum compatible global tectonic moment rate within the plate
boundary zones of 7.0 x 1021 N m yr"1, of which 63% is accommodated along
subduction zones, 19% along oceanic ridges and transforms, 14% in continental
areas, ...

Author :

Release :

Publisher : American Geophysical Union

ISBN : 9780875905

File Size : 73.80 MB

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Geodynamics of Azores-Tunisia

Both subduction zones merged during the Early Miocene west of the Alboran
Terrane and formed a triple junction with the Azores-Gibraltar transform fault. A
westward roll back of the N-trending subduction segment was responsible for the
 ...

Author : E. Buforn

Release : 2004-03-26

Publisher : Springer Science & Business Media

ISBN : 9783764370435

File Size : 48.81 MB

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The Azores-Tunisia region is formed by the western part of the plate boundary between Eurasia and Africa. This plate boundary presents a complex nature due to its proximity to the pole of rotation of the African plate. This condition produces crustal extensions and normal faulting at the Azores archipelago, transcurrent motion with strike slip faulting at the center part of the Azores-Gibraltar fault and at the eastern end, from the Gulf of Cadiz to Tunisia, plate convergence with reverse faulting. In this last part, the collision of Iberia with northern Morocco produces complex phenomena with intermediate depth and deep earthquakes and an extensional regime at the Alboran sea. Recently, new evidence has been gathered in this region based on observations from geology, geodesy, mainly through GPS measurements, seismology, especially with the installation of broad-band stations, and other fields of geophysics, such as paleomagnetism and gravimetry. This volume presents a collection of papers dealing with the geological and tectonic structure and evolution of the region and parts thereof, its seismicity and seismotectonic implications and geodetic and paleomagnetic observations which offer new understanding of the complex geodynamics of this region.

Surge Tectonics: A New Hypothesis of Global Geodynamics

In a convection cell 670 km deep, a plate moving downward beneath a Benioff
zone must enter and pass through a zone ... "heavier" or "denser" material rising
beneath the midocean ridges to propel the plates toward their "subduction" zones
.

Author : Arthur A. Meyerhoff

Release : 1996-08-31

Publisher : Springer Science & Business Media

ISBN : 9780792341567

File Size : 46.88 MB

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TECTONlCS AND PHYSICS Geology, although rooted in the laws of physics, rarely has been taught in a manner designed to stress the relations between the laws and theorems of physics and the postulates of geology. The same is true of geophysics, whose specialties (seismology, gravimetIy, magnetics, magnetotellurics) deal only with the laws that govern them, and not with those that govern geology's postulates. The branch of geology and geophysics called tectonophysics is not a formalized discipline or subdiscipline, and, therefore, has no formal laws or theorems of its own. Although many recent books claim to be textbooks in tectonophysics, they are not; they are books designed to explain one hypothesis, just as the present book is designed to explain one hypothesis. The textbook that comes closest to being a textbook of tectonophysics is Peter 1. Wyllie's (1971) book, The Dynamic Earth. Teachers, students, and practitioners of geology since the very beginning of earth science teaching have avoided the development of a rigorous (but not rigid) scientific approach to tectonics, largely because we earth scientists have not fully understood the origin of the features with which we are dealing. This fact is not at all surprising when one considers that the database for hypotheses and theories of tectonics, particularly before 1960, has been limited to a small part of the exposed land area on the Earth's surface.

Mud Volcanoes, Geodynamics and Seismicity

Proceedings of the NATO Advanced Research Workshop on Mud Volcanism,
Geodynamics and Seismicity, Baku, Azerbaijan, ... is of importance for the
dewatering of the forearc and the resulting devolatilisation of the entire
subduction zone.

Author : Giovanni Martinelli

Release : 2006-03-30

Publisher : Springer Science & Business Media

ISBN : 1402032048

File Size : 44.25 MB

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1. PURPOSE OF PRESENT BOOK During the period May 19-26, 2003 the NATO Advanced Research Workshop (ARW) “Mud volcanism, Geodynamics and Seismicity” was held in Baku. Participants coming from USA, Germany, France, Italy, Portugal, Russian Federation, Ukraine, Romania, Georgia, UK, Israel, Azerbaijan, Tunisia have discussed about different geodynamic features of mud volcanism and participated to field trips oriented to a better knowledge of mud volcanic features. The Meeting focused on many features of mud volcanism occurrence and related geodynamic topics. The purpose of present book is to collect contributions discussed during the Meeting and to fill a marked editorial gap on mud volcanism. Mud volcanism was to date described by local monographies or by articles published by scientific journals. In particular no books were published on topics able to highlight the link among mud volcanism, geodynamics and seismicity. Mud volcano of Nirano (Northern Italy). Engraving from Stoppani A. (1871), Corso di Geologia, Milan, Bernardoni G. and Brigola G. Publishers. 2. WHY MUD VOLCANOES ARE GEOLOGICALLY IMPORTANT ? Mud volcanoes have attracted the attention of earth scientists for many years. Due to their importance in hydrocarbon research, a consistent progress in the knowledge of mud volcanism took place in the past twenty years. Mud extrusion is a well-known phenomenon occurring in geological environments where fluid-rich, fine grained sediments ascend within a lithologic succession due to their buoyancy.

Receiver Function Imaging of Mantle Transition Zone Discontinuities Beneath Alaska

"Subduction of tectonic plates is one of the most important tectonic processes, yet many aspects of subduction zone geodynamics remain unsolved and poorly understood, such as the depth extent of the subducted slab and its geometry.

Author : Haider Hassan Faraj Dahm

Release : 2017

Publisher :

ISBN :

File Size : 47.22 MB

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"Subduction of tectonic plates is one of the most important tectonic processes, yet many aspects of subduction zone geodynamics remain unsolved and poorly understood, such as the depth extent of the subducted slab and its geometry. The Alaska subduction zone, which is associated with the subduction of the Pacific Plate beneath the North America plate, has a complex tectonic setting and carries a series of subduction episodes, and represents an excellent target to study such plate tectonic processes. Previous seismological studies in Alaska have proposed different depth estimations and geometry for the subducted slab. The Mantle transition zone discontinuities of the 410km and the 660 km provide independent constraints on the depth extent of the subducted slabs. We conducted a receiver function study to map the topography of the 410 km and the 660 km discontinuities beneath Alaska and its adjacent areas by taking advantage of the teleseismic data from the new USArray deployment in Alaska and northwestern Canada. Stacking over 75,000 high-quality radial receiver functions recorded in Alaska with more than 40 years of recording period, the topographies of the 410 km and 660 km are mapped. The depths of both d410 and d660 show systematic spatial variations, the mean depth of d410 and d660 are within 6 km and 6 km from the global average, respectively. The mean MTZ thickness of the entire study area is within -2 km from the global average of 250 km, suggesting normal MTZ conditions on average. Central and south-central Alaska are characterized by a larger than normal MTZ thickness, suggesting that the subducting Pacific slab is thermally interacted with the MTZ. This study shows that lateral upper mantle velocity variations contribute the bulk of the observed apparent undulations of the MTZ discontinuities"--Abstract, page iv.