The Crust And Upper Mantle Structure Of Eastern Anatolia Turkey From Gravity Modeling Constrained By Seismic Data

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The Crust and Upper Mantle Structure of Eastern Anatolia, Turkey from Gravity Modeling Constrained by Seismic Data

Author : Gokay Onal
Publisher :
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.:/5 (131 download)

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Book Synopsis The Crust and Upper Mantle Structure of Eastern Anatolia, Turkey from Gravity Modeling Constrained by Seismic Data by : Gokay Onal

Download or read book The Crust and Upper Mantle Structure of Eastern Anatolia, Turkey from Gravity Modeling Constrained by Seismic Data written by Gokay Onal and published by . This book was released on 2016 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eastern Anatolian region is part of a young continental collision zone between the Arabian and Eurasian plates. The lithosphere in Eastern Anatolia is underlain by a low-velocity zone associated with asthenospheric flow in the upper mantle. The asthenospheric flow might have been caused by lithospheric delamination and slab detachment. There are many debates about the thickness of the mantle lithosphere, the effect of the hot asthenospheric material on the crustal structure, and the geodynamic evolution of Eastern Anatolia. To better understand the geodynamic evolution of Eastern Anatolia, a 2.5-D gravity model of the crust and upper mantle structure between 38°E/37°N and 44°E /41°N was developed using terrestrial and satellite gravity data. The model is constrained by all available geological and geophysical data. The results of the gravity modeling reveal low-density structures within the lower crust, indicating a thermally heated crust, and a low-velocity zone in the upper mantle associated with the hot asthenospheric flow in the region. The presence of the asthenospheric flow in the upper mantle might have an effect on the crustal and lithospheric structures in the region. The lithospheric thicknesses in the Anatolian and Arabian plates are significantly different. The lithospheric thickness increases from 60 km in the northern segment of the Anatolian plate to 95 km in the Arabian Plate. Thus, the lithosphere beneath Eastern Anatolia is extremely thin. This is attributed to lithospheric delamination and slab break-off. The extremely thin lithosphere, the presence of a hot asthenosphere, the rapid uplift of topography and widespread volcanism across the region may indicate that lithospheric delamination and slab detachment occurred in Eastern Anatolia. The topography in Eastern Anatolian is not isostatically compensated. There is a residual topography of approximately 1.7 km that cannot be explained by crustal roots. Thus, part of the Eastern Anatolian Plateau may be dynamically supported by asthenospheric flow in the upper mantle.

A Model of the Crust and Upper Mantle Structures in Central Anatolia, Turkey, Constrained by Gravity and Seismic Data

Author : Yagmur Yilmaz
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (128 download)

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Book Synopsis A Model of the Crust and Upper Mantle Structures in Central Anatolia, Turkey, Constrained by Gravity and Seismic Data by : Yagmur Yilmaz

Download or read book A Model of the Crust and Upper Mantle Structures in Central Anatolia, Turkey, Constrained by Gravity and Seismic Data written by Yagmur Yilmaz and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The complex tectonic setting of the easternmost Mediterranean Sea and central Anatolia remains largely unresolved. Previous studies, mostly based on seismic investigations, presented results that conflicted with each other. The purpose of this study is to use gravity modeling to distinguish which aspects of previously published work is consistent with Earth's gravity signal. For this purpose, I constructed gravity model profiles between longitudes 30℗ðE and 38℗ðE, each ranging from latitude 32℗ðN to latitude 40℗ðN. In these models, I incorporated structural boundaries published in previous work and compared to the satellite based EIGEN-6C4 gravity data product, what the gravity signal of the structures would be. Based on my gravity models, I identified that the crustal thickness is increasing in northern as well as in eastern direction. My gravity models show that the Cyprus slab subducts with an angle of 29 and 31 degrees along longitudes 31℗ðE and 32℗ðE, respectively. Even though the Cyprus slab is present between longitudes 33℗ðE and 34℗ðE, it has most likely experienced slab breakoff which might cause lithospheric removal farther to the north in central Anatolia. The last three profiles longitude 35℗ðE, 36℗ðE and 37℗ðE do not have the Cyprus slab.The central Anatolian lithosphere is thinner than both the African and Arabian lithosphere. The average lithospheric thickness is 75-81 km in central Anatolia and approximately 97 and 105 km in the African and Arabian plates, respectively. When the densities were compared to the African and Arabian plates, I observed relatively low-density crust and uppermost mantle in central Anatolia. The thin lithosphere and low-density material may indicate thermal alteration associated with delamination, slab breakoff and/or drip tectonics in central Anatolia.

Active Global Seismology

Author : Ibrahim Cemen
Publisher : John Wiley & Sons
ISBN 13 : 1118944984
Total Pages : 305 pages
Book Rating : 4.1/5 (189 download)

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Book Synopsis Active Global Seismology by : Ibrahim Cemen

Download or read book Active Global Seismology written by Ibrahim Cemen and published by John Wiley & Sons. This book was released on 2017-04-03 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neotectonics involves the study of the motions and deformations of the Earth's crust that are current or recent in geologic time. The Mediterranean region is one of the most important regions for neotectonics and related natural hazards. This volume focuses on the neotectonics of the Eastern Mediterranean region, which has experienced many major extensive earthquakes, including the devastating Izmit, Turkey earthquake on August 17, 1999. The event lasted for 37 seconds, killing around 17,000 people, injuring 44,000 people, and leaving approximately half a million people homeless. Since then, several North American, European, and Turkish research groups have studied the neotectonics and earthquake potential of the region using different geological and geophysical methods, including GPS studies, geodesy, and passive source seismology. Some results from their studies were presented in major North American and European geological meetings. This volume highlights the work involving the Eastern Mediterranean region, which has one of the world's longest and best studied active strike-slip (horizontal motion) faults: the east-west trending North Anatolian fault zone, which is very similar to the San Andreas fault in California. This volume features discussions of: Widespread applications in measuring plate motion that have strong implications in predicting natural disasters like earthquakes, both on a regional and a global scale Recent motions, particularly those produced by earthquakes, that provide insights on the physics of earthquake recurrence, the growth of mountains, orogenic movements, and seismic hazards Unique methodical approaches in collecting tectonophysical data, including field, seismic, experimental, computer-based, and theoretical approaches. Active Global Seismology is a valuable resource for geoscientists, particularly in the field of tectonophysics, geophysics, geodynamics, seismology, structural geology, environmental geology, and geoengineering. Read an interview with the editors to find out more: https://eos.org/editors-vox/neotectonics-and-earthquake-forecasting

Synthesis of Regional Crust and Upper-mantle Structure from Seismic and Gravity Data

Author : Shelton S. Alexander
Publisher :
ISBN 13 :
Total Pages : 85 pages
Book Rating : 4.:/5 (253 download)

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Book Synopsis Synthesis of Regional Crust and Upper-mantle Structure from Seismic and Gravity Data by : Shelton S. Alexander

Download or read book Synthesis of Regional Crust and Upper-mantle Structure from Seismic and Gravity Data written by Shelton S. Alexander and published by . This book was released on 1982 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Earth's Crust and Upper Mantle

Author : Pembroke J. Hart
Publisher :
ISBN 13 :
Total Pages : 762 pages
Book Rating : 4.:/5 (45 download)

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Book Synopsis The Earth's Crust and Upper Mantle by : Pembroke J. Hart

Download or read book The Earth's Crust and Upper Mantle written by Pembroke J. Hart and published by . This book was released on 1969 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Recent Evolution and Seismicity of the Mediterranean Region

Author : E. Boschi
Publisher : Springer Science & Business Media
ISBN 13 : 9401120161
Total Pages : 434 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Recent Evolution and Seismicity of the Mediterranean Region by : E. Boschi

Download or read book Recent Evolution and Seismicity of the Mediterranean Region written by E. Boschi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mediterranean is one of the most studied regions of the world. In spite of this, a considerable spread of opinions exists about the geodynamic evolution and the present tectonic setting of this zone. The difficulty in recognizing the driving mechanisms of deformation is due to a large extent to the complex distribution in space and time of tectonic events, to the high number of parameters involved in this problem and to the scarce possibility of carrying out quantitative estimates of the deformation implied by the various geodynamic hypotheses. However, we think that a great deal of the present ambiguity could be removed if there were more frequent and open discussions among the scientists who are working on this problem. The meeting ofERICE was organized to provide an opportunity in this sense. In making this effort, we were prompted by the conviction that each step towards the understanding of the Mediterranean evolution is of basic importance both for its scientific consequences and for the possibleimplicationsfor society. It is well known, for instance, that the knowledge ofongoing tectonic processes in a given region and of their connection with seismic activity may lead to the recognition of middle long term precursors of strong earthquakes. The few cases of tentative earthquake prediction in the world occurred where information on large scale seismotectonic behavior was available. This led to identify the zones prone to dangerous shocks, where observations of short-term earthquake precursors were then concentrated.

The North Anatolian Fault, Turkey

Author : Elvira Papaleo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (19 download)

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Book Synopsis The North Anatolian Fault, Turkey by : Elvira Papaleo

Download or read book The North Anatolian Fault, Turkey written by Elvira Papaleo and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Plateau Uplift

Author : K. Fuchs
Publisher : Springer Science & Business Media
ISBN 13 : 3642692192
Total Pages : 427 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Plateau Uplift by : K. Fuchs

Download or read book Plateau Uplift written by K. Fuchs and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Lithosphere Program; Publ. No. 0104

High Resolution Velocity Structure in Eastern Turkey

Author : W. Walter
Publisher :
ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (316 download)

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Book Synopsis High Resolution Velocity Structure in Eastern Turkey by : W. Walter

Download or read book High Resolution Velocity Structure in Eastern Turkey written by W. Walter and published by . This book was released on 2004 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigate the crustal and upper mantle structure of eastern Turkey where the Anatolian, Arabian and Eurasian Plates meet and form a complex tectonic structure. The Bitlis suture is a continental collision zone between the Anatolian plateau and the Arabian plate. Broadband data available through the Eastern Turkey Seismic Experiment (ETSE) provided a unique opportunity for studying the high resolution velocity structure. Zor et al. found an average 46 km thick crust in Anatolian plateau using six-layered grid search inversion of the ETSE receiver functions. Receiver functions are sensitive to the velocity contrast of interfaces and the relative travel time of converted and reverberated waves between those interfaces. The interpretation of receiver function alone with many-layered parameterization may result in an apparent depth-velocity tradeoff. In order to improve previous velocity model, we employed the joint inversion method with many layered parameterization of Julia et al. (2000) to the ETSE receiver functions. In this technique, the receiver function and surface-wave observations are combined into a single algebraic equation and each data set is weighted by an estimate of the uncertainty in the observations. We consider azimuthal changes of receiver functions and have stacked them into different groups. We calculated the receiver functions using iterative time-domain deconvolution technique and surface wave group velocity dispersion curves between 10-100 sec. We are making surface wave dispersion measurements at the ETSE stations and have incorporated them into a regional group velocity model. Preliminary results indicate a strong trend in the long period group velocity in the northeast. This indicates slow upper mantle velocities in the region consistent with Pn, Sn and receiver function results. We started with both the 1-D model that is obtained with the 12 tones dam explosion shot data recorded by ETSE network and the existing receiver function inversion results. In fact, we observe that the inversion results are independent at the starting model and converges well to the same final model. We don't observe a significant change at the first order discontinuities of model (e.g. Moho depth), but we obtain better defined depths to low velocity layers.

The Structure of the Earth's Crust and Upper Mantle from the Data of Seismic Investigations

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (5 download)

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Book Synopsis The Structure of the Earth's Crust and Upper Mantle from the Data of Seismic Investigations by :

Download or read book The Structure of the Earth's Crust and Upper Mantle from the Data of Seismic Investigations written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Global Tectonics

Author : Philip Kearey
Publisher : John Wiley & Sons
ISBN 13 : 1118688082
Total Pages : 496 pages
Book Rating : 4.1/5 (186 download)

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Book Synopsis Global Tectonics by : Philip Kearey

Download or read book Global Tectonics written by Philip Kearey and published by John Wiley & Sons. This book was released on 2013-05-28 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third edition of this widely acclaimed textbook provides acomprehensive introduction to all aspects of global tectonics, andincludes major revisions to reflect the most significant recentadvances in the field. A fully revised third edition of this highly acclaimed textwritten by eminent authors including one of the pioneers of platetectonic theory Major revisions to this new edition reflect the mostsignificant recent advances in the field, including new andexpanded chapters on Precambrian tectonics and the supercontinentcycle and the implications of plate tectonics for environmentalchange Combines a historical approach with process science to providea careful balance between geological and geophysical material inboth continental and oceanic regimes Dedicated website available at ahref="http://www.blackwellpublishing.com/kearey/"www.blackwellpublishing.com/kearey//a

2005 Joint Assembly

Author : American Geophysical Union. Joint Assembly
Publisher :
ISBN 13 :
Total Pages : 588 pages
Book Rating : 4.6/5 (89 download)

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Book Synopsis 2005 Joint Assembly by : American Geophysical Union. Joint Assembly

Download or read book 2005 Joint Assembly written by American Geophysical Union. Joint Assembly and published by . This book was released on 2005 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Structure of the Earth's Crust and Upper Mantle Plotted from the Data of Seismic Studies

Author :
Publisher :
ISBN 13 :
Total Pages : 610 pages
Book Rating : 4.:/5 (791 download)

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Book Synopsis Structure of the Earth's Crust and Upper Mantle Plotted from the Data of Seismic Studies by :

Download or read book Structure of the Earth's Crust and Upper Mantle Plotted from the Data of Seismic Studies written by and published by . This book was released on 1978 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Continental Plate Boundary

Author : David Okaya
Publisher : American Geophysical Union
ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis A Continental Plate Boundary by : David Okaya

Download or read book A Continental Plate Boundary written by David Okaya and published by American Geophysical Union. This book was released on 2007-01-09 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 175. A Continental Plate Boundary offers in one place the most comprehensive, up-to-date knowledge for researchers and students to learn about the tectonics and plate dynamics of the Pacific-Australian continental plate boundary in South Island and about the application of modern geological and geophysical methods. It examines what happens when convergence and translation occur at a plate boundary by Describing the geological and geophysical signature of a continental transform fault; Identifying the diverse vertical and lateral patterns of deformation at the plate boundary; Assessing an apparent seismicity gap on the plate boundary fault and fast-moving plate motions; Comparing this plate boundary to other global convergent continental strike-slip plate boundaries; Documenting the utility of the double-sided, onshore-offshore seismic method for exploration of a narrow continental island; and Providing additional papers presenting previously unpublished results. This volume will prove invaluable for seismologists, tectonophysicists, geodesists and potential-field geophysicists, geologists, geodynamicists, and students of the deformation of tectonic plates.

Sedimentary Basin Tectonics from the Black Sea and Caucasus to the Arabian Platform

Author : Marc Sosson
Publisher : Geological Society of London
ISBN 13 : 9781862393080
Total Pages : 522 pages
Book Rating : 4.3/5 (93 download)

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Book Synopsis Sedimentary Basin Tectonics from the Black Sea and Caucasus to the Arabian Platform by : Marc Sosson

Download or read book Sedimentary Basin Tectonics from the Black Sea and Caucasus to the Arabian Platform written by Marc Sosson and published by Geological Society of London. This book was released on 2010 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This wide area of the Alpine-Himalayan belt evolved through a series of tectonic events related to the opening and closure of the Tethys Ocean. In doing so it produced the largest mountain belt of the world, which extends from the Atlantic to the Pacific oceans. The basins associated with this belt contain invaluable information related to mountain building processes and are the locus of rich hydrocarbon accumulations. However, knowledge about the geological evolution of the region is limited compared to what they offer.

Conference on Inverse Scattering--Theory and Application

Author : J. Bee Bednar
Publisher : SIAM
ISBN 13 : 9780898711905
Total Pages : 310 pages
Book Rating : 4.7/5 (119 download)

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Book Synopsis Conference on Inverse Scattering--Theory and Application by : J. Bee Bednar

Download or read book Conference on Inverse Scattering--Theory and Application written by J. Bee Bednar and published by SIAM. This book was released on 1983-01-01 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nature of the Crust and Upper Mantle Beneath Northwest Basin-and-range and East Africa Using Passive-source Seismic Data

Author : Ewenet Gashawbeza Mengesha
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (499 download)

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Book Synopsis Nature of the Crust and Upper Mantle Beneath Northwest Basin-and-range and East Africa Using Passive-source Seismic Data by : Ewenet Gashawbeza Mengesha

Download or read book Nature of the Crust and Upper Mantle Beneath Northwest Basin-and-range and East Africa Using Passive-source Seismic Data written by Ewenet Gashawbeza Mengesha and published by . This book was released on 2009 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: