Download or read book Seismic Array Studies of Antarctica and Madagascar written by Martin James Pratt and published by . This book was released on 2016 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seismic Investigations of the Crust and Upper Mantle Structure in Antarctica and Madagascar written by Cristo Ramirez and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the three studies that form this dissertation, seismic data from Antarctica and Madagascar have been analyzed to obtain new insights into crustal structure and mantle flow. Until recently, there have been little seismic data available from these areas for interrogating Earth structure and processes. In Antarctica, I analyzed datasets from temporary deployments of broadband seismic stations in both East and West Antarctica. In Madagascar, I analyzed data from a temporary network of broadband stations, along with data from three permanent stations. The seismic data have been processed and modeled using a wide range of techniques to characterize crust and mantle structure. Crustal structure in the East Antarctic Craton resembles Precambrian terrains around the world in its thickness and shear wave velocities. The West Antarctic Rift System has thinner crust, consistent with crustal thickness beneath other Cretaceous rifts. The Transantarctic Mountains show thickening of the crust from the costal regions towards the interior of the mountain range, and high velocities in the lower crust at several locations, possibly resulting from the Ferrar magmatic event. Ross Island and Marie Byrd Land Dome have elevated crustal Vp/Vs ratios, suggesting the presence of partial melt and/or volcaniclastic material within the crust. The pattern of seismic anisotropy in Madagascar is complex and cannot arise solely due to mantle flow from the African superplume, as previously proposed. To explain the complex pattern of anisotropy, a combination of mechanisms needs to be invoked, including mantle flow from the African superplume, mantle flow from the Comoros hotspot, small scale upwelling in the mantle induced by lithospheric delamination, and fossil anisotropy in the lithospheric mantle along Precambrian shear zones.

Download or read book Geology and Seismic Stratigraphy of the Antarctic Margin written by Alan K. Cooper and published by American Geophysical Union. This book was released on 1997-01-23 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Antarctic Research Series, Volume 71. The Antarctic Ice Sheet has greatly affected global climate, sea level, ocean circulation, and southern hemisphere biota during Cenozoic times. Much of our understanding of the evolution of the ice sheet has been inferred from isotopic studies on distant deep-ocean sediments, because few Cenozoic rocks are exposed on the Antarctic continent. Yet, large differences occur between past ice volumes inferred from isotopic studies and those inferred from low-latitude sea-level variation. The massive quantities of glacially transported terrigenous sediments that lie beneath the Antarctic continental margin provide an additional, more direct record of the inferred ice sheet fluctuations. Volume 68 addresses the history of ice sheet fluctuations as recorded by geological and geophysical investigations of selected areas of the Antarctic continental margin. As described below, the volume gives data and results from on-going research by a major multinational project directed toward better understanding the impact of Antarctic Ice Sheet fluctuations on global sea levels and climates.

Download or read book Geology and Seismic Stratigraphy of the Antarctic Margin written by Alan K. Cooper and published by Wiley-AGU. This book was released on 1997-01-23 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Antarctic Ice Sheet has greatly affected global climate, sea level, ocean circulation, and southern hemisphere biota during Cenozoic times. Much of our understanding of the evolution of the ice sheet has been inferred from isotopic studies on distant deep-ocean sediments, because few Cenozoic rocks are exposed on the Antarctic continent. Yet, large differences occur between past ice volumes inferred from isotopic studies and those inferred from low-latitude sea-level variation. The massive quantities of glacially transported terrigenous sediments that lie beneath the Antarctic continental margin provide an additional, more direct record of the inferred ice sheet fluctuations. Volume 68 addresses the history of ice sheet fluctuations as recorded by geological and geophysical investigations of selected areas of the Antarctic continental margin. As described below, the volume gives data and results from on-going research by a major multinational project directed toward better understanding the impact of Antarctic Ice Sheet fluctuations on global sea levels and climates.

Download or read book The Study of the Madagascar Seismic Data Processing Package in Relation to Reflection Seismology Models written by Izzatdin A. Aziz and published by . This book was released on 2010 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Abstracts written by and published by . This book was released on 1987 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polarforschung written by and published by . This book was released on 2007 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Seismic Ambient Noise written by Nori Nakata and published by Cambridge University Press. This book was released on 2019-03-21 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of seismic ambient noise, covering observations, physical origins, modelling, processing methods and applications in imaging and monitoring.

Download or read book Electromagnetic Coupling with a Collinear Array on a Two layer Anisotropic Earth written by Jeffrey C. Wynn and published by . This book was released on 1979 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the effects of electromagnetic coupling in dipole-dipole and pole-dipole induced polarization field measurements, with evaluation of a coupling-removal technique.

Download or read book Petroleum Abstracts written by and published by . This book was released on 1992 with total page 1716 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antarctic Bibliography written by and published by . This book was released on 1984 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reverse Acronyms Initialisms Abbreviations Dictionary written by and published by . This book was released on 2007 with total page 1580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geophysical Abstracts written by and published by . This book was released on 1985 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antarctic Climate Evolution written by Fabio Florindo and published by Elsevier. This book was released on 2008-10-10 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antarctic Climate Evolution is the first book dedicated to furthering knowledge on the evolution of the world’s largest ice sheet over its ~34 million year history. This volume provides the latest information on subjects ranging from terrestrial and marine geology to sedimentology and glacier geophysics. An overview of Antarctic climate change, analyzing historical, present-day and future developments Contributions from leading experts and scholars from around the world Informs and updates climate change scientists and experts in related areas of study

Download or read book Innovation and Discoveries in Marine Soundscape Research written by Bob Dziak and published by Frontiers Media SA. This book was released on 2022-04-04 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Western Alps from Rift to Passive Margin to Orogenic Belt written by Pierre-Charles de Graciansky and published by Elsevier. This book was released on 2010-10-06 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Western Alps, from Rift to Passive Margin to Orogenic Belt addresses the evolution of the Alpine fold belt for the first time in the English language. It builds on classical Alpine geological studies made since the start of the 19th century by combining that research with modern results obtained over the past 50 years using new marine geological and geophysical technologies. The book thus provides an integrated overview of the evolution of the Alps from rift to passive margin to the present fold belt over a significant time span. An integrated multidisciplinary synthesis of the evolution of the Alps from rift to passive margin to foldbelt 175 figures, structural maps and cross sections An index of localities referred to in the fext and figures A brief summary of the history and development of ideas concerning the evolution of fold belts and passive margins since the 19th century Provides basis for further enquire and research Provides wider context relevant to marine and oil industry geoscientists

Download or read book Passive Seismic Monitoring of Induced Seismicity written by David W. Eaton and published by Cambridge University Press. This book was released on 2018-04-26 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the principles and applications of passive seismic monitoring, providing an accessible overview of current research and technology.