Download or read book A Geochemical Approach to Mantle and Crustal Dynamics in Central Anatolia written by Helen Deborah Gall and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation provides new geochemical analyses of Quaternary mafic and intermediate products erupted in south-Central Anatolia. We explore the petrogenesis of primitive mafic cinder cone products erupted from the Hasanda Cinder Cone Province (HCCP) and the adjacent Karapnar Volcanic Field (KVF) as well as intermediate compositions (basaltic andesites, andesites and dacites) erupted contemporaneously from the Hasanda stratovolcano. I begin by using whole rock geochemical analyses alongside Sr-Nd-Hf-Pb isotopic data to explore the mechanisms of mantle melting that generated the HCCP and KVF lavas and compare their petrogenesis to those observed in other Anatolian volcanic provinces. In doing so, I document changes in magma chemistry that reflect the complex and evolving tectonic regime, build upon previously proposed mechanisms of lithospheric removal, and clarify the evolution of the mantle beneath Central Anatolia in order to better understand the complex regional geodynamic history. Major and trace element geochemistry indicate melting of the spinel-bearing lithosphere to produce individual small mafic magma batches of heterogeneous melts and further suggest contribution from metasomatic phases. Isotopic analyses require contributions from the metasomatized Anatolian subcontinental lithosphere along with input from a spatially heterogeneous sublithospheric mantle. The mafic lavas record an increase in degree of melting with depth accompanied by gradual reduction in the contribution from metasomatic phases, which is indicative of lithospheric drip melting. This geochemical signature is also observed in Western Anatolian late Miocene and Quaternary mafic lavas, but is not exhibited in the Quaternary East Anatolian lavas or the Sivas Basin basalts and basanites in north-Central Anatolia. Our findings demonstrate a complex interplay between lithospheric and asthenospheric source domains and suggest drip melting was initiated after delamination of the subducted NeoTethys slab, resulting in upwelling asthenosphere and destabilization of the remaining lithosphere which melted to produce the observed mafic volcanism at the HCCP and KVF. Next, I examine the crustal dynamics of Central Anatolia by assessing the genesis of intermediate compositions erupted during the most recent episodes of volcanism at the Hasanda stratovolcano (Neo- and Mesovolcano,

Download or read book Crust Mantle Recycling at Convergence Zones written by Stanley R. Hart and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of a collection of papers presented at the NATO Advanced Research Workshop (ARW) on "Crust/mantle Recycl ing at Convergence Zones," held in Antalya, Turkey, between May 25 to 29, 1987. The workshop was attended by 36 earth scientists from ten countries and 28 papers were presented. Crust/mantle recycling is one of the most fundamental processes in the Earth. The study and understanding of this process requires the consideration of the Earth as a whole system including the atmosphere, the hydrosphere and the core, as well as the crust and the mantle; effective interdisciplinary collaboration is therefore essential to our progress. The Antalya ARW gave us the opportunity to assemble key specialists from relevant branches of the earth sciences and to address our state of knowledge. This ARW proved to be very useful in attaining an interdisciplinary, mutual understanding among specialists from diverse fields such as isotope and trace element geochemistry, mineral physics, theoretical geophysics, seismology, experimental petrology, and structural geology.

Download or read book Crust Mantle and Lithosphere Asthenosphere Boundaries written by Gianluca Bianchini and published by Geological Society of America. This book was released on 2017-05-10 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 10-chapter volume encompasses contributions from a wide spectrum of Earth science disciplines, including geophysics, geodynamics, geochemistry, and petrology, to provide an overview of the nature and evolution of the crust-mantle and lithosphere-asthenosphere boundaries in different tectonic settings, combining studies that exploit different types of data and interpretative approaches. The integration of geochemical, geophysical, and geodynamic data sets and their interpretation provides a state-of-the-art summary of current understanding, and will serve as a blueprint for future research activities.

Download or read book The Geodynamics of the Aegean and Anatolia written by Tuncay Taymaz and published by Geological Society of London. This book was released on 2007 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains current results and ideas regarding the geodynamics of the Aegean and Anatolia.

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.

Download or read book The Earth s crust and Mantle written by F.A. Vening Meinesz and published by Elsevier. This book was released on 2012-12-02 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Earth's Crust and Mantle presents the deformations of the Earth's crust, which are attributed to mantle currents. This book explores the gravity observations, which give indications about the way in which the masses in the Earth are distributed. Comprised of five chapters, this book starts with an overview of the constitution of the various parts of the Earth and mentions the densities concerned. This text then discusses the thermal behavior of the Earth as well as examines the principle of isostasy and the readjustments of isostatic equilibrium. Other chapters examine the general effects of horizontal compression of the rigid crust and the fields of positive gravity anomalies. This book discusses as well the effects of active volcanicity, which is one source of disturbances of equilibrium of the Earth. The final chapter deals with the oceanic parts of the crust. This book is a valuable resource for geologists, geophysicists, physical geographers, and physical geodesists.

Download or read book Road from Geochemistry to Geochemometrics written by Surendra P. Verma and published by Springer. This book was released on 2019-08-16 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights major problems in the statistical analysis of compositions that have been known for over a century, as well as the corresponding solutions that have been put forward by specialists over the past 30 years. The basic assumptions of normality or multi-normality are pointed out and methods to test and achieve them are also covered. The conventional major and trace element geochemistry and modeling equations are discussed, and are followed by a more sophisticated multidimensional approach to data handling. The book’s main focus is on the use of statistical techniques to facilitate data interpretation. It also highlights the classification (or nomenclature) and tectonic discrimination aspects for both igneous and sedimentary rocks. The book concludes by discussing computer programs that are helping pave the way from geochemistry to geochemometrics. Written by a leading expert in the area of geochemistry, it offers a valuable guide for students and professionals in the area.

Download or read book Tectonic Evolution of the Tethyan Region written by A.M.C. Sengör and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ihsan Ketin NATO Advanced Study Institute on the Tectonic Evolution of the Tethyan Region was conceived in 1982 in Veszprem, Hungary, when three of the organizers (B. C. B. , L. H. R. and A. M. C. 9. ) had come together for a meeting on the tectonics of the Pannonian basin. All three of us had experience in the Tethyan belt and all three of us had been for some time deploring the lack of communication among workers of this immense orogenic belt. Much new work had been completed in such previously little-known areas as Turkey, Iran, Afghanistan, the People's Republic of China, the entire Himalayan region, as well as new work in the European parts of the chain. Also, ironically, parts of the belt had just been closed to field work for political reasons, so it seemed as if the time was right to sit back and consider what had been done so far. Because the Istanbul group had had an interest in the whole of the Tethyan belt and because that ancient city was more centrally locElted with excellent opportunities to see both Palaeo- and Neo-Tethyan rocks in a weekend excursion, we thought that Istanbul was a natural place for such a meeting, not mentioning its own considerable attractions for the would-be contributors. A happy coincidence was that Prof.

Download or read book The Mantle and Core written by Richard W. Carlson and published by Elsevier Science. This book was released on 2004 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: /inca/publications/misc/622551sample2.pdf Sample chapter Though largely inaccessible, the geochemistry of Earth's mantle and core can be examined through a wide variety of approaches. Volume 2 focuses first on "remote" sensing using evidence from cosmochemical, seismic, petrologic and geochemical approaches. Mantle composition is then examined in detail through descriptions of mantle samples brought to Earth's surface through tectonic, volcanic, and volatile-outgassing processes. The volume concludes with examination of processes that modify the composition of the mantle and core including an early magma ocean, partial melting, element partitioning between minerals and melts, and physical mixing caused by plate subduction, mantle convection and mass exchange between mantle and core.

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

Download or read book Plates Plumes and Planetary Processes written by Gillian R. Foulger and published by Geological Society of America. This book was released on 2007 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a collection of papers discussing various hypotheses and models of planetary plumes.

Download or read book European Lithosphere Dynamics written by D. G. Gee and published by Geological Society of America. This book was released on 2006 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Europe provides an outstanding field laboratory for studying lithospheric processes through time, for tracing the tectonic evolution of crust and mantle from the present far back into the early Precambrian. Two things are particularly striking: the importance of plate tectonics during the Phanerozoic and through the Proterozic into the Archeaen, and the significance of tectonic inheritance, older structures and rheologies guiding the younger evolution. 'European Lithosphere Dynamics' grew out of a major European Science Foundation programme, EUROPROBE, with participation of many hundreds of Earth scientists from all over Europe. The main research activities focused on specific target areas and involved integration of geological, geophysical and geochemical methods. Defining surface-depth relationships was a prerequisite for interpretation of the processes, present and past, responsible for the formation of the lithosphere.

Download or read book Crust and Mantle Magmas as Response on Mantle Dynamics written by Igor Ashchepkov and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Active Global Seismology written by Ibrahim Cemen and published by John Wiley & Sons. This book was released on 2017-03-03 with total page 309 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

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

Download or read book Geological Development of Anatolia and the Easternmost Mediterranean Region written by A. H. F. Robertson and published by Geological Society of London. This book was released on 2013 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anatolia and the easternmost Mediterranean region, especially Turkey, Cyprus and northern Syria, represent an excellent natural laboratory for the study of fundamental geological processes (e.g. rifting, seafloor spreading, ophiolite genesis and emplacement, subduction, exhumation and collision). Their interaction has created an intriguing array of deep-sea basins, microcontinents and suture zones.The volume's 22 papers include a large amount of new field-based information (much of it multidisciplinary and the product of teamwork). After an overview, the volume is divided into four sections: Late Palaeozoic--Early Cenozoic of the Pontides (northern Turkey); Late Palaeozoic--Early Cenozoic of the Taurides--Anatolides (central and southern Turkey); Late Cretaceous--Pliocene sedimentary basins and structural development (central Anatolia to the Mediterranean); Late Miocene--Recent Neotectonics (southern Turkey, Cyprus and northern Syria). The volume will interest numerous academic researchers, those concerned with resources (e.g. hydrocarbons; mineral deposits) and also hazards (e.g. earthquakes), as well as advanced undergraduate and postgraduate students -- P. 4 of cover.

Download or read book Subduction Zone Magmatism written by Yashiyuki Tatsumi and published by Wiley. This book was released on 1995-06-15 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Subduction zones are major sites of volcanism on the Earth. As one crustal plate sinks or is pushed beneath another, hot magma is produced and the resultant magma flux is fundamental to both the thermal evolution and chemical differentiation of the mantle and the Earth itself. To understand these evolutionary processes, we need to understand the physical and chemical consequences of all aspects of the subduction process. In this book, the authors present a simple, current and comprehensive model that explains the dominant geological processes at work in subduction zones. Structuring the book around the model, the authors describe the physical characteristics and geochemical dynamics of subduction zones, arc magma generation, and the dynamics and flow in the mantle. Students and researchers alike will find this book of immense value in understanding this most complex of subjects.