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Author : Megan S. Avants
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (72 download)
Download or read book Shear-wave Velocity Structure of the D" Region Beneath the Central Pacific written by Megan S. Avants and published by . This book was released on 2005 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hauke Marquardt
Publisher : John Wiley & Sons
ISBN 13 : 1119528615
Total Pages : 32 pages
Book Rating : 4.1/5 (195 download)
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.
Author :
Publisher :
ISBN 13 : 9780875909516
Total Pages : 289 pages
Book Rating : 4.9/5 (95 download)
Download or read book Geophysical Monograph written by and published by . This book was released on 1956 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Brian J. Mitchell
Publisher :
ISBN 13 :
Total Pages : 39 pages
Book Rating : 4.:/5 (227 download)
Download or read book Shear Velocity Structure in the Eastern United States from the Inversion of Surface Wave Group and Phase Velocities written by Brian J. Mitchell and published by . This book was released on 1979 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single-station group velocities at periods between 4 and 70 seconds and single-station phase velocities at periods between 10 and 50 seconds are obtained for a broad region of the eastern United States for both Rayleigh and Love waves. These data were obtained by the single-station method using earthquakes with known fault-plane solutions in the central United States. The group velocity data are combined with earlier acquired attenuation data to yield Q values for Rayleigh and Love waves in the eastern United States. Inversions of the dispersion curves for shear-velocity models of the crust and upper mantle indicate that all of the data can be explained satisfactorily by a single model which is isotropic in its elastic properties. This model includes a surface layer of low-velocity sediments, and is characterized by upper crustal shear-wave velocities which increase from 3.4 to 3.7 km/sec with increasing depth, by lower crustal shear-wave velocities between 4.0 and 3.8 km/sec, and by an upper-most mantle shear-wave velocity of about 4.8 km/sec. The fundamental-mode data of this study do not require a low-velocity zone in either the crust or upper mantle. Higher-mode velocities and wave forms, although having potentially greater resolving power than the fundamental-mode data, were too inconsistent to contribute to the elucidation of detailed features of the crust-upper mantle model. (Author).
Author : Robert Allan Uhrhammer
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (35 download)
Download or read book Shear Wave Velocity Structure in the Earth from Differential Shear Wave Measurements written by Robert Allan Uhrhammer and published by . This book was released on 1977 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Barbara Romanowicz
Publisher : Elsevier
ISBN 13 : 0444535756
Total Pages : 873 pages
Book Rating : 4.4/5 (445 download)
Download or read book Seismology and Structure of the Earth written by Barbara Romanowicz and published by Elsevier. This book was released on 2010-04-20 with total page 873 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Geophysics: Seismology and Structure of the Earth, Volume 1, provides a comprehensive review of the state of knowledge on the Earths structure and earthquakes. It addresses various aspects of structural seismology and its applications to other fields of Earth sciences. The book is organized into four parts. The first part principally covers theoretical developments and seismic data analysis techniques from the end of the nineteenth century until the present, with the main emphasis on the development of instrumentation and its deployment. The second part reviews the status of knowledge on the structure of the Earths shallow layers, starting with a global review of the Earth's crustal structure. The third part focuses on the Earth's deep structure, divided into its main units: the upper mantle, the transition zone and upper-mantle discontinuities, the D region at the base of the mantle, and the Earth's core. The fourth part comprises two chapters which discuss constraints on Earth structure from fields other than seismology: mineral physics and geodynamics. - Self-contained volume starts with an overview of the subject then explores each topic with in depth detail - Extensive reference lists and cross references with other volumes to facilitate further research - Full-color figures and tables support the text and aid in understanding - Content suited for both the expert and non-expert
Author : Russell Robinson
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.F/5 ( download)
Download or read book Shear Wave Velocity in the Earth's Mantle written by Russell Robinson and published by . This book was released on 1970 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : American Geophysical Union
ISBN 13 : 9780875905
Total Pages : 224 pages
Book Rating : 4.7/5 (88 download)
Download or read book Ecosystem Dynamics in a Polar Desert written by and published by American Geophysical Union. This book was released on 1998 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Jeroen Ritsema
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (483 download)
Download or read book Complex Shear Wave Velocity Structure Imaged Beneath Africa and Iceland written by Jeroen Ritsema and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Elsevier
ISBN 13 : 0444538038
Total Pages : 5604 pages
Book Rating : 4.4/5 (445 download)
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
Author : Michael Gurnis
Publisher : American Geophysical Union
ISBN 13 :
Total Pages : 352 pages
Book Rating : 4.:/5 (318 download)
Download or read book The Core-Mantle Boundary Region written by Michael Gurnis and published by American Geophysical Union. This book was released on 1998-02-04 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two giant heat engines responsible for plate tectonics and the geodynamo dynamically interact at the core-mantle boundary of the Earth's interior. A multidisciplinary approach is required to determine the composition, structure, and dynamics of the interface. This volume describes original and fundamental research in seismology, geodynamics, mineral physics, and geomagnetism.
Author : Kei Hirose
Publisher : John Wiley & Sons
ISBN 13 : 1118671937
Total Pages : 478 pages
Book Rating : 4.1/5 (186 download)
Download or read book Post-Perovskite written by Kei Hirose and published by John Wiley & Sons. This book was released on 2013-04-30 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 174. Discovery of the perovskite to post-perovskite phase transition in MgSiO3, expected to occur for deep mantle conditions, was first announced in April 2004. This immediately stimulated numerous studies in experimental and theoretical mineral physics, seismology, and geodynamics evaluating the implications of a major lower mantle phase change. A resulting revolution in our understanding of the D′′ region in the lowermost mantle is well underway. This monograph presents the multidisciplinary advances to date ensuing from interpreting deep mantle seismological structures and dynamical processes in the context of the experimentally and theoretically determined properties of the post-perovskite phase change; the last silicate phase change likely to occur with increasing pressure in lowermost mantle rocks.
Author : Hiroshi Okada
Publisher : SEG Books
ISBN 13 : 1560801204
Total Pages : 150 pages
Book Rating : 4.5/5 (68 download)
Download or read book The Microtremor Survey Method written by Hiroshi Okada and published by SEG Books. This book was released on 2003 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the nature of the microtremor noise field, the use of appropriate surface arrays of geophones, and the two principal classes of array-processing techniques, high-resolution beamforming and the spatial autocorrelation method (SPAC). This is the first comprehensive textbook of the microtremor survey method written in English.
Author : Carl A. Atallah
Publisher :
ISBN 13 :
Total Pages : 694 pages
Book Rating : 4.:/5 (19 download)
Download or read book Compressional and Shear Wave Structure of the Pacific Ocean Crust and Upper Mantle: Implications for Crustal Evolution written by Carl A. Atallah and published by . This book was released on 1984 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gillian R. Foulger
Publisher : Geological Society of America
ISBN 13 : 0813723884
Total Pages : 898 pages
Book Rating : 4.8/5 (137 download)
Download or read book Plates, Plumes, and Paradigms written by Gillian R. Foulger and published by Geological Society of America. This book was released on 2005-01-01 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yang Wang (M.S. in Geological Sciences)
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (976 download)
Download or read book Shear Velocity Structure and Mineralogy of the Transition Zone Beneath the East Pacific Rise written by Yang Wang (M.S. in Geological Sciences) and published by . This book was released on 2013 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Models of seismic velocity as a function of depth through the upper mantle provide some of the strongest constraints on the mineralogy and composition of the mantle. Although receiver function studies have provided new information on the depths of upper mantle discontinuities they do not provide as much information on seismic gradients and velocities. The waveforms and travel times of upper mantle turning waves provide the strongest constraints on vertical variations in upper mantle velocity although in the past they suffered from the lack of dense profiles of data sampling a single part of the upper mantle that would minimize effects of 3D variations in velocity. Here we model three dense profiles of triplicated upper mantle broadband S and SS waves recorded by USArray, Canadian and NARS-Baja stations located in western North America. Earthquakes along the East Pacific Rise were recorded along profiles within 5°back azimuth windows and with stations at a maximum of .5°separation. The distance range covered is from 30° to 60° and thus the waves sample the mantle from the lithosphere to depths near 1000 km. The data were inverted using a conjugate gradient algorithm that utilizes the reflectivity synthetic technique. The results show a much smaller gradient within the transition zone than the PREM model with larger jumps in velocity at the 410 km and 660 km depth discontinuities. These results are consistent with velocities predicted for a pyrolite composition mantle transition zone. Compositional models with lower olivine content, such as piclogite, are not consistent with our seismic model.
Author : Gerald Schubert
Publisher :
ISBN 13 :
Total Pages : 880 pages
Book Rating : 4.F/5 ( download)
Download or read book Treatise on Geophysics: Seismology and structure of the Earth written by Gerald Schubert and published by . This book was released on 2007 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Treatise on geophysics is the only comprehensive, state-of-the-art, and integrated summary of the present state of geophysics. Offering an array of articles from some of the top scientists around the world, this 11-volume work deals with all major parts of solid-Earth geophysics, including a volume on the terrestrial planets and moons in our Solar System. This major reference work will aid researchers, advanced undergrad and graduate students, as well as professionals in cutting-edge research.
