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Crustal And Upper Mantle Structure Beneath Western Tibet Using Seismic Traveltime Tomography And Receiver Functions
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Book Synopsis Crustal and Upper Mantle Structure Beneath Western Tibet Using Seismic Traveltime Tomography and Receiver Functions by : Ayda Shokoohi Razi
Download or read book Crustal and Upper Mantle Structure Beneath Western Tibet Using Seismic Traveltime Tomography and Receiver Functions written by Ayda Shokoohi Razi and published by . This book was released on 2016 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plates, Plumes, and Planetary Processes by : Gillian R. Foulger
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.
Book Synopsis Multiscale Seismic Tomography by : Dapeng Zhao
Download or read book Multiscale Seismic Tomography written by Dapeng Zhao and published by Springer. This book was released on 2015-02-20 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book on multiscale seismic tomography, written by one of the leaders in the field, is suitable for undergraduate and graduate students, researchers, and professionals in Earth and planetary sciences who need to broaden their horizons about seismotectonics, volcanism, and interior structure and dynamics of the Earth and Moon. It describes the state-of-the-art in seismic tomography, with emphasis on the new findings obtained by applying tomographic methods in local, regional, and global scales for understanding the generating mechanism of large and great earthquakes such as the 2011 Tohoku-oki earthquake (Mw 9.0), crustal and upper mantle structure, origin of active arc volcanoes and intraplate volcanoes including hotspots, heterogeneous structure of subduction zones, fate of subducting slabs, origin of mantle plumes, mantle convection, and deep Earth dynamics. The first lunar tomography and its implications for the mechanism of deep moonquakes and lunar evolution are also introduced.
Book Synopsis Principles of Seismology by : Agustín Udías Vallina
Download or read book Principles of Seismology written by Agustín Udías Vallina and published by Cambridge University Press. This book was released on 2018 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition features a completely new chapter on digital seismic data processing, numerous examples and 100 problems.
Book Synopsis Crustal and Upper Mantle Structure Beneath the Southeastern United States from Joint Inversion of Rayleigh Wave Dispersion and Receiver Functions by : Qiuyue Yang
Download or read book Crustal and Upper Mantle Structure Beneath the Southeastern United States from Joint Inversion of Rayleigh Wave Dispersion and Receiver Functions written by Qiuyue Yang and published by . This book was released on 2021 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In spite of numerous geophysical investigations have been conducted in southeastern United States, the structure and evolution of the crust and lithospheric mantle remain controversial due the thick sedimentary covers atop the crust of the coastal plains there. In this study, we use data from 186 broadband seismic stations belonging to the USArray Transportable Array to construct a 3-D shear wave velocity model for the southeastern United States for the top 180 km by a joint inversion of Rayleigh wave phase velocity dispersion and receiver functions. Our results show a clear spatial correspondence with major surficial geological features. A prominent low velocity anomaly observed in the depth range of 0 to 25 km beneath the eastern Gulf Coastal Plain suggests the existence of thick sediments atop the crystalline crust. The eastern side of the southern Appalachian Mountains is characterized by low crustal Vp/Vs, thin crust, and slow lower crustal velocities, which may be caused by lower crustal delamination followed by relamination. Beneath the Osceola intrusive complex located at the central Suwannee Terrane, our results show low Vp/Vs measurements and seismically fast lower crust, which are attributable to eclogites in the lower crust. The Grenville Province and a narrow zone to its east possess relatively higher Vp/Vs values comparing with the surrounding areas, which can be attributed to mafic intrusion associated with crustal extension in the recently recognized eastern arm of the Proterozoic Midcontinent Rift. According to the isostasy theory, we estimate the density variations from the resulting velocity anomalies in the top 180 km, which indicate that contributions from density anomalies in greater depths are required to reach isostatic balance"--Abstract, page iv.
Book Synopsis Crustal and Uppermost Mantle Structure Beneath the Western United States from USArray Regional Phase Analysis by : Janine Sylvia Buehler
Download or read book Crustal and Uppermost Mantle Structure Beneath the Western United States from USArray Regional Phase Analysis written by Janine Sylvia Buehler and published by . This book was released on 2013 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this dissertation is to improve our understanding of the crust and uppermost mantle structure in the western United States, profiting from the wealth of regional phase data recorded at USArray stations. USArray, a transportable seismic array of ~400 seismometers, has greatly increased seismic data coverage across the United States in the past few years, and allows imaging of the lithosphere of the North American continent with better resolution and new methods. The regional phases are often challenging to analyze, especially in a tectonically-active region like the western United States, because of their sensitivities to the heterogeneities of the crust and uppermost mantle. However, knowledge of the seismic structure of the lithosphere is not only essential in order to accurately image the velocity structure at greater depths, but also for constraining geodynamic models that reconstruct the tectonic evolution of the continent, and hence the information that is carried by the regional phases is very valuable. The data set used in this study consists mostly of the regional seismic phases Pn and Sn, which propagate horizontally along the Moho in the mantle lid and constrain the seismic velocity structure at a confined depth. We applied traditional tomographic methods that profit from the improved ray coverage through USArray, but also employed array-based techniques that take advantage of the regular station spacing of the transportable array and don't depend on regularization. In addition, we used stacking methods to image the propagation efficiency of the Sn phase, which is often highly attenuated in tectonically active regions, on a regional scale. The results complement other seismic studies that average over greater depth intervals, such as surface- and body-wave tomographies and anisotropy analysis from shear-wave splitting, to provide information on temperature, composition, and tectonic processes at depth. Comparisons between Pn azimuthal anisotropy and fast polarization direction from shear wave splitting suggest significant vertical changes in anisotropy in several regions of the upper mantle beneath the western United States. Sn can in theory further constrain the nature of anisotropy in the mantle lid. However, we have so far been unable to resolve shear-wave splitting directly in the Sn waveforms as the phase is often attenuated and difficult to detect. Still, we obtained evidence for Sn propagation in several regions of the western United States such as the central Great Basin and the northeastern part of the Colorado Plateau. We found that there are enough quality Sn picks for joint Pn-Sn tomography and identified prominent Vp/Vs anomalies, such as large high Vp/Vs regions --- typically associated with partial melt --- below the Snake River Plain and the Colorado Plateau.
Book Synopsis Handbook of Geomathematics by : Amir Z. Averbuch
Download or read book Handbook of Geomathematics written by Amir Z. Averbuch and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Solid Earth Geophysics by : Harsh Gupta
Download or read book Encyclopedia of Solid Earth Geophysics written by Harsh Gupta and published by Springer Science & Business Media. This book was released on 2011-06-29 with total page 1579 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past few decades have witnessed the growth of the Earth Sciences in the pursuit of knowledge and understanding of the planet that we live on. This development addresses the challenging endeavor to enrich human lives with the bounties of Nature as well as to preserve the planet for the generations to come. Solid Earth Geophysics aspires to define and quantify the internal structure and processes of the Earth in terms of the principles of physics and forms the intrinsic framework, which other allied disciplines utilize for more specific investigations. The first edition of the Encyclopedia of Solid Earth Geophysics was published in 1989 by Van Nostrand Reinhold publishing company. More than two decades later, this new volume, edited by Prof. Harsh K. Gupta, represents a thoroughly revised and expanded reference work. It brings together more than 200 articles covering established and new concepts of Geophysics across the various sub-disciplines such as Gravity, Geodesy, Geomagnetism, Seismology, Seismics, Deep Earth Processes, Plate Tectonics, Thermal Domains, Computational Methods, etc. in a systematic and consistent format and standard. It is an authoritative and current reference source with extraordinary width of scope. It draws its unique strength from the expert contributions of editors and authors across the globe. It is designed to serve as a valuable and cherished source of information for current and future generations of professionals.
Book Synopsis Fundamentals of Geophysics by : William Lowrie
Download or read book Fundamentals of Geophysics written by William Lowrie and published by Cambridge University Press. This book was released on 2007-09-20 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of Fundamentals of Geophysics has been completely revised and updated, and is the ideal geophysics textbook for undergraduate students of geoscience with an introductory level of knowledge in physics and mathematics. It gives a comprehensive treatment of the fundamental principles of each major branch of geophysics, and presents geophysics within the wider context of plate tectonics, geodynamics and planetary science. Basic principles are explained with the aid of numerous figures and step-by-step mathematical treatments, and important geophysical results are illustrated with examples from the scientific literature. Text-boxes are used for auxiliary explanations and to handle topics of interest for more advanced students. This new edition also includes review questions at the end of each chapter to help assess the reader's understanding of the topics covered and quantitative exercises for more thorough evaluation. Solutions to the exercises and electronic copies of the figures are available at www.cambridge.org/9780521859028.
Book Synopsis Structure and Tectonics of the Indian Continental Crust and Its Adjoining Region by : Harish C Tewari
Download or read book Structure and Tectonics of the Indian Continental Crust and Its Adjoining Region written by Harish C Tewari and published by Elsevier. This book was released on 2018-02-07 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structure and Tectonics of the Indian Continental Crust and Its Adjoining Region: Deep Seismic Studies, Second Edition, collates essential data from seismic studies of Earth's crust across India, offering an essential understanding of the tectonic development of the Indian subcontinent. Seismic studies have been carried out in various parts of India since 1972, recording crust-related seismic data for determination of velocity-depth configuration and determination of structural patterns. The book examines the details of these studies, including their synthesis and global applications. The book presents both background and applications in one cohesive volume for researchers and students of geophysics and geology. - Presents all the information and metadata of the Indian continental crust and its neighbouring regions in a cohesive way - Provides basic knowledge of the Indian subcontinent to support the discussion of seismic studies related to crustal structure - Includes all new chapter covering global applications and synthesis of the findings and observations
Book Synopsis Continental Basin and Orogenic Processes: Deep Structure, Tectonic Deformation, and Dynamics by : Hanlin Chen
Download or read book Continental Basin and Orogenic Processes: Deep Structure, Tectonic Deformation, and Dynamics written by Hanlin Chen and published by Frontiers Media SA. This book was released on 2022-11-04 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Himalaya and Tibet by : Allison Macfarlane
Download or read book Himalaya and Tibet written by Allison Macfarlane and published by Geological Society of America. This book was released on 1999-01-01 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mantle Convection and Surface Expressions by : Hauke Marquardt
Download or read book Mantle Convection and Surface Expressions written by Hauke Marquardt and published by John Wiley & Sons. This book was released on 2021-07-07 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary perspective on the dynamic processes occurring in Earth's mantle The convective motion of material in Earth's mantle, powered by heat from the deep interior of our planet, drives plate tectonics at the surface, generating earthquakes and volcanic activity. It shapes our familiar surface landscapes, and also stabilizes the oceans and atmosphere on geologic timescales. Mantle Convection and Surface Expressions brings together perspectives from observational geophysics, numerical modelling, geochemistry, and mineral physics to build a holistic picture of the deep Earth. It explores the dynamic processes occurring in the mantle as well as the associated heat and material cycles. Volume highlights include: Perspectives from different scientific disciplines with an emphasis on exploring synergies Current state of the mantle, its physical properties, compositional structure, and dynamic evolution Transport of heat and material through the mantle as constrained by geophysical observations, geochemical data and geodynamic model predictions Surface expressions of mantle dynamics and its control on planetary evolution and habitability The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.
Book Synopsis Proterozoic Crustal Evolution by : K.C. Condie
Download or read book Proterozoic Crustal Evolution written by K.C. Condie and published by Elsevier. This book was released on 1993-02-03 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a final product of the International Geological Correlation Program (IGCP) Project 217, this volume brings together significant advances in the understanding of Proterozoic crustal evolution. This IGCP Project focussed on nine research objectives: 1) Comparison of Archean and Proterozoic supracrustal assemblages to more fully understand differences between Archean and post-Archean tectonic regimes; 2) To more fully understand the geochemical differences between Archean and post-Archean sediments and to evaluate the various factors that control sediment composition; 3) From combined U/Pb zircon and whole-rock Sm/Nd studies, to see if the apparent 2.4-2.0 continental crust "generation gap" is real; 4) To employ new techniques in the dating of individual zircons to more fully understand Proterozoic tectonic history and the role of crustal reworking; 5) From trace element ratios and Nd isotopic data from basalts, to better understand Proterozoic mantle evolution; 6) To encourage more detailed studies of the anorogenic granite-anorthosite association to better understand its origin and significance in terms of crustal evolution; 7) From combined Nd, Pb, and Sr isotopic data, to more precisely estimate the amount of new continental crust formed during the Proterozoic; 8) To encourage joint P-T and geochronological studies of Proterozoic and high-grade terranes to better understand Proterozoic orogenesis: and 9) To try and understand why hydrothermal precious metal deposits are relatively rare in the Proterozoic compared to both the Archean and the Phanerozoic. The book should be of interest to professionals in the geosciences (especially geochemists, petrologists and structural geologists) and graduate students in the same fields.
Download or read book Treatise on Geophysics written by and published by Elsevier. This book was released on 2015-04-17 with total page 5604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Geophysics, Second Edition, is a comprehensive and in-depth study of the physics of the Earth beyond what any geophysics text has provided previously. Thoroughly revised and updated, it provides fundamental and state-of-the-art discussion of all aspects of geophysics. A highlight of the second edition is a new volume on Near Surface Geophysics that discusses the role of geophysics in the exploitation and conservation of natural resources and the assessment of degradation of natural systems by pollution. Additional features include new material in the Planets and Moon, Mantle Dynamics, Core Dynamics, Crustal and Lithosphere Dynamics, Evolution of the Earth, and Geodesy volumes. New material is also presented on the uses of Earth gravity measurements. This title is essential for professionals, researchers, professors, and advanced undergraduate and graduate students in the fields of Geophysics and Earth system science. Comprehensive and detailed coverage of all aspects of geophysics Fundamental and state-of-the-art discussions of all research topics Integration of topics into a coherent whole
Book Synopsis Imaging of the Crustal, Lithospheric and Upper Mantle Structure Beneath the Westernmost Mediterranean Region Using P- and S-receiver Function Methods by : Süleyman Dündar
Download or read book Imaging of the Crustal, Lithospheric and Upper Mantle Structure Beneath the Westernmost Mediterranean Region Using P- and S-receiver Function Methods written by Süleyman Dündar and published by . This book was released on 2011 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rock Quality, Seismic Velocity, Attenuation and Anisotropy by : Nick Barton
Download or read book Rock Quality, Seismic Velocity, Attenuation and Anisotropy written by Nick Barton and published by CRC Press. This book was released on 2006-11-03 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic measurements take many forms, and appear to have a universal role in the Earth Sciences. They are the means for most easily and economically interpreting what lies beneath the visible surface. There are huge economic rewards and losses to be made when interpreting the shallow crust or subsurface more, or less accurately, as the case may be.
