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Acoustic Monitoring Of Earthquakes Along The Blanco Transform Fault Zone And Gorda Plate And Their Tectonic Implications
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Book Synopsis Acoustic Monitoring of Earthquakes Along the Blanco Transform Fault Zone and Gorda Plate and Their Tectonic Implications by : Robert P. Dziak
Download or read book Acoustic Monitoring of Earthquakes Along the Blanco Transform Fault Zone and Gorda Plate and Their Tectonic Implications written by Robert P. Dziak and published by . This book was released on 1997 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydroacoustic tertiary (T- ) waves are seismically generated acoustic waves that propagate over great distances in the ocean sound channel with little loss in signal strength. Hydrophone recorded T-waves can provide a lower earthquake detection threshold and an improved epicenter location accuracy for oceanic earthquakes than land-based seismic networks. Thus detection and location of NE Pacific ocean earthquakes along the Blanco Transform Fault (BTFZ) and Gorda plate using the U.S. Navy's SOSUS (SOund SUrveillance System) hydrophone arrays afford greater insight into the current state of stress and crustal deformation mechanics than previously available. Acoustic earthquake information combined with bathymetry, submersible observations, earthquake source-parameter estimates, petrologic samples, and water-column chemistry renders a new tectonic view of the southern Juan de Fuca plate boundaries. Chapter 2 discusses development of seismo-acoustic analysis techniques using the well-documented April 1992 Cape Mendocino earthquake sequence. Findings include a hydrophone detection threshold estimate (M~2.4), and T-wave propagation path modeling to approximate earthquake acoustic source energy. Empirical analyses indicate that acoustic energy provides a reasonable magnitude and seismic moment estimate of oceanic earthquakes not detected by seismic networks. Chapters 3 documents a probable volcanogenic T-wave event swarm along a pull-apart basin within the western BTFZ during January 1994. Response efforts yielded evidence of anomalous water-column 3He concentrations, pillow-lava volcanism, and the first discovery of active hydrothermal vents along an oceanic fracture zone. Chapter 4 discusses the detection of a NE-SW trending microearthquake band along the mid-Gorda plate which was active from initiation of SOSUS recording in August 1991 through July 1992, then abruptly ceased. It is proposed that eventual termination of the Gorda plate seismicity band is due to strain reduction associated with the Cape Mendocino earthquake sequence. Chapter 5 combines bathymetric, hydro-acoustic, seismic, submersible, and gravity data to investigate the active tectonics of the transform parallel Blanco Ridge (BR), along the eastern BTFZ. The BR formation mechanism preferred here is uplift through strike-slip motion (with a normal component) followed by formation and intrusion of mantle-derived serpentinized-peridotite into the shallow ocean crust. The conclusion considers a potential link between the deformation patterns observed along the BTFZ and Gorda plate regions.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1998 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceans 2003 written by and published by . This book was released on 2003 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seismological Research Letters written by and published by . This book was released on 2003 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Planetary Tectonics by : Thomas R. Watters
Download or read book Planetary Tectonics written by Thomas R. Watters and published by Cambridge University Press. This book was released on 2010 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an essential reference volume that surveys tectonic landforms on solid bodies throughout the Solar System.
Book Synopsis Aquatic Sciences and Fisheries Abstracts by :
Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1992 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shale Tectonics written by Lesli J. Wood and published by AAPG. This book was released on 2011-03-01 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardcover plus CD
Book Synopsis Geologic, Hydrothermal, and Biologic Studies at Escanaba Trough, Gorda Ridge, Offshore Northern California by : Geological Survey (U.S.)
Download or read book Geologic, Hydrothermal, and Biologic Studies at Escanaba Trough, Gorda Ridge, Offshore Northern California written by Geological Survey (U.S.) and published by . This book was released on 1994 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geocomplexity and the Physics of Earthquakes by : John Rundle
Download or read book Geocomplexity and the Physics of Earthquakes written by John Rundle and published by American Geophysical Union. This book was released on 2000-01-10 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 120. Earthquakes in urban centers are capable of causing enormous damage. The January 16, 1995 Kobe, Japan earthquake was only a magnitude 6.9 event and yet produced an estimated $200 billion loss. Despite an active earthquake prediction program in Japan, this event was a complete surprise. Similar scenarios are possible in Los Angeles, San Francisco, Seattle, and other urban centers around the Pacific plate boundary. The development of forecast or prediction methodologies for these great damaging earthquakes has been complicated by the fact that the largest events repeat at irregular intervals of hundreds to thousands of years, resulting in a limited historical record that has frustrated phenomenological studies. The papers in this book describe an emerging alternative approach, which is based on a new understanding of earthquake physics arising from the construction and analysis of numerical simulations. With these numerical simulations, earthquake physics now can be investigated in numerical laboratories. Simulation data from numerical experiments can be used to develop theoretical understanding that can be subsequently applied to observed data. These methods have been enabled by the information technology revolution, in which fundamental advances in computing and communications are placing vast computational resources at our disposal.
Book Synopsis Volcanism in Antarctica: 200 Million Years of Subduction, Rifting and Continental Break-up by : J.L. Smellie
Download or read book Volcanism in Antarctica: 200 Million Years of Subduction, Rifting and Continental Break-up written by J.L. Smellie and published by Geological Society of London. This book was released on 2021-06-09 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt: This memoir is the first to review all of Antarctica’s volcanism between 200 million years ago and the Present. The region is still volcanically active. The volume is an amalgamation of in-depth syntheses, which are presented within distinctly different tectonic settings. Each is described in terms of (1) the volcanology and eruptive palaeoenvironments; (2) petrology and origin of magma; and (3) active volcanism, including tephrochronology. Important volcanic episodes include: astonishingly voluminous mafic and felsic volcanic deposits associated with the Jurassic break-up of Gondwana; the construction and progressive demise of a major Jurassic to Present continental arc, including back-arc alkaline basalts and volcanism in a young ensialic marginal basin; Miocene to Pleistocene mafic volcanism associated with post-subduction slab-window formation; numerous Neogene alkaline volcanoes, including the massive Erebus volcano and its persistent phonolitic lava lake, that are widely distributed within and adjacent to one of the world’s major zones of lithospheric extension (the West Antarctic Rift System); and very young ultrapotassic volcanism erupted subglacially and forming a world-wide type example (Gaussberg).
Download or read book The Andes written by Onno Oncken and published by Springer Science & Business Media. This book was released on 2006-11-22 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first comprehensive overview of a complete subduction orogen, the Andes. To date the results provide the densest and most highly resolved geophysical image of an active subduction orogen.
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1998 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessing Earthquake Hazards and Reducing Risk in the Pacific Northwest by : Albert M. Rogers
Download or read book Assessing Earthquake Hazards and Reducing Risk in the Pacific Northwest written by Albert M. Rogers and published by . This book was released on 1996 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of the earthquake potential in the Pacific Northwest and examination of the measures necessary to reduce seismic hazards.
Book Synopsis Plate Boundary Zones by : Seth Stein
Download or read book Plate Boundary Zones written by Seth Stein and published by American Geophysical Union. This book was released on 2002-01-21 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume collects some recent studies on the motions, mechanics, and earthquakes that take place within plate boundary zones. Many of the studies reflect advances made possible by the development of space geodetic techniques. Among the topics of the 21 papers are tectonic processes in the Eurasian-African plate boundary zone, the structure of the Dead Sea basin, the January 2001 Bhuj earthquake in India, geological investigations of the Kamchatka region in Russia, and crustal shortening and extension in the central Andes. There is no index. Annotation copyrighted by Book News, Inc., Portland, OR.
Book Synopsis The Gulf of Mexico Sedimentary Basin by : John W. Snedden
Download or read book The Gulf of Mexico Sedimentary Basin written by John W. Snedden and published by Cambridge University Press. This book was released on 2019-11-21 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction -- Mesozoic depositional evolution -- Cenozoic depositional evolution -- Petroleum habitat.
Book Synopsis Active Faults of the World by : Robert Yeats
Download or read book Active Faults of the World written by Robert Yeats and published by Cambridge University Press. This book was released on 2012-04-26 with total page 923 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing the first worldwide survey of active earthquake faults, this book focuses on those described as 'seismic time bombs' – with the potential to destroy large cities in the developing world such as Port au Prince, Kabul, Tehran and Caracas. Leading international earthquake expert, Robert Yeats, explores both the regional and plate-tectonic context of active faults, providing the background for seismic hazard evaluation in planning large-scale projects such as nuclear power plants or hydroelectric dams. He also highlights work done in more advanced seismogenic countries like Japan, the United States, New Zealand and China, providing an important basis for upgrading building standards and other laws in developing nations. The book also explores the impact of major quakes on social development through history. It will form an accessible reference for analysts and consulting firms, and a convenient overview for academics and students of geoscience, geotechnical engineering and civil engineering, and land-use planning.
