Download or read book Earthquake Behavior and Structure of Oceanic Transform Faults written by Emily Carlson Roland and published by . This book was released on 2012 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oceanic transform faults that accommodate strain at mid-ocean ridge offsets represent a unique environment for studying fault mechanics. Here, I use seismic observations and models to explore how fault structure affects mechanisms of slip at oceanic transforms. Using teleseismic data, I find that seismic swarms on East Pacific Rise (EPR) transforms exhibit characteristics consistent with the rupture propagation velocity of shallow aseismic creep transients. I also develop new thermal models for the ridge-transform fault environment to estimate the spatial distribution of earthquakes at transforms. Assuming a temperature-dependent rheology, thermal models indicated that a significant amount of slip within the predicted temperature-dependent seismogenic area occurs without producing large-magnitude earthquakes. Using a set of local seismic observations, I consider how along-fault variation in the mechanical behavior may be linked to material properties and fault structure. I use wide-angle refraction data from the Gofar and Quebrada faults on the equatorial EPR to determine the seismic velocity structure, and image wide low-velocity zones at both faults. Evidence for fractured fault zone rocks throughout the crust suggests that unique friction characteristics may influence earthquake behavior. Together, earthquake observations and fault structure provide new information about the controls on fault slip at oceanic transform faults.
Download or read book Seismic Behavior on Oceanic Transform Faults Revealed by Numerical Modeling and Seismic Observation written by Pengcheng Shi and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plate Tectonics A Very Short Introduction written by Peter Molnar and published by Oxford University Press, USA. This book was released on 2015 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: La 4e de couv. indique : "The concept of plate tectonics is relatively new - it was only in the 1960s that the idea that continents drifted with respect to one another came to be accepted. Plate tectonics now forms one of geology's basic principles and explains much of the large-scale structure and phenomena we see on Earth today. In this Very Short Introduction Peter Molnar explores the impact that plate tectonics has had on our understanding of Earth : how the ocean floor forms, widens, and disappears ; why earthquakes and volcanoes are found in distinct zones ; and how the great mountain ranges of the world were built. As the Himalaya continues to grow, the Atlantic widens, and new ocean floor is forming, the mechanisms of plate tectonics continue to alter the surface of our planet."
Download or read book Dead Sea Transform Fault System Reviews written by Zvi Garfunkel and published by Springer. This book was released on 2014-07-03 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dead Sea transform is an active plate boundary connecting the Red Sea seafloor spreading system to the Arabian-Eurasian continental collision zone. Its geology and geophysics provide a natural laboratory for investigation of the surficial, crustal and mantle processes occurring along transtensional and transpressional transform fault domains on a lithospheric scale and related to continental breakup. There have been many detailed and disciplinary studies of the Dead Sea transform fault zone during the last 20 years and this book brings them together. This book is an updated comprehensive coverage of the knowledge, based on recent studies of the tectonics, structure, geophysics, volcanism, active tectonics, sedimentology and paleo and modern climate of the Dead Sea transform fault zone. It puts together all this new information and knowledge in a coherent fashion.
Download or read book Living on an Active Earth written by National Research Council and published by National Academies Press. This book was released on 2003-09-22 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: The destructive force of earthquakes has stimulated human inquiry since ancient times, yet the scientific study of earthquakes is a surprisingly recent endeavor. Instrumental recordings of earthquakes were not made until the second half of the 19th century, and the primary mechanism for generating seismic waves was not identified until the beginning of the 20th century. From this recent start, a range of laboratory, field, and theoretical investigations have developed into a vigorous new discipline: the science of earthquakes. As a basic science, it provides a comprehensive understanding of earthquake behavior and related phenomena in the Earth and other terrestrial planets. As an applied science, it provides a knowledge base of great practical value for a global society whose infrastructure is built on the Earth's active crust. This book describes the growth and origins of earthquake science and identifies research and data collection efforts that will strengthen the scientific and social contributions of this exciting new discipline.
Download or read book Seismicity and Structure of the Orozco Transform Fault from Ocean Bottom Seismic Observation Anne Martine Tr hu written by Anne Martine Tréhu and published by . This book was released on 1982* with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transform Plate Boundaries and Fracture Zones written by Joao C. Duarte and published by Elsevier. This book was released on 2018-09-25 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transform Plate Boundaries and Fracture Zones bridges the gap between the classic plate tectonic theory and new emerging ideas, offering an assessment of the state-of-the-art, pending questions, and future directions in the study of transform plate boundaries and fracture zones. The book includes a number of case studies and reviews on both oceanic and continental tectonic settings. Transform Plate Boundaries and Fracture Zones is a timely reference for a variety of researchers, including geophysicists, seismologists, structural geologists and tectonicists, as well as specialists in exploration geophysics and natural hazards. This book can also be used as an up-to-date reference at universities in both undergraduate and postgraduate levels. Reviews ideas and concepts about transform plate boundaries and fracture zones Includes a variety of case studies on both oceanic and continental settings Addresses innovative and provocative ideas about the activity of fracture zones and transform faults and their impacts to the human society
Download or read book Physical Geology written by Steven Earle and published by . This book was released on 2016-08-12 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a discount Black and white version. Some images may be unclear, please see BCCampus website for the digital version.This book was born out of a 2014 meeting of earth science educators representing most of the universities and colleges in British Columbia, and nurtured by a widely shared frustration that many students are not thriving in courses because textbooks have become too expensive for them to buy. But the real inspiration comes from a fascination for the spectacular geology of western Canada and the many decades that the author spent exploring this region along with colleagues, students, family, and friends. My goal has been to provide an accessible and comprehensive guide to the important topics of geology, richly illustrated with examples from western Canada. Although this text is intended to complement a typical first-year course in physical geology, its contents could be applied to numerous other related courses.
Download or read book The Mechanics of Earthquakes and Faulting written by Christopher H. Scholz and published by Cambridge University Press. This book was released on 2019-01-03 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This essential reference for graduate students and researchers provides a unified treatment of earthquakes and faulting as two aspects of brittle tectonics at different timescales. The intimate connection between the two is manifested in their scaling laws and populations, which evolve from fracture growth and interactions between fractures. The connection between faults and the seismicity generated is governed by the rate and state dependent friction laws - producing distinctive seismic styles of faulting and a gamut of earthquake phenomena including aftershocks, afterslip, earthquake triggering, and slow slip events. The third edition of this classic treatise presents a wealth of new topics and new observations. These include slow earthquake phenomena; friction of phyllosilicates, and at high sliding velocities; fault structures; relative roles of strong and seismogenic versus weak and creeping faults; dynamic triggering of earthquakes; oceanic earthquakes; megathrust earthquakes in subduction zones; deep earthquakes; and new observations of earthquake precursory phenomena.
Download or read book The Mechanics of Earthquakes and Faulting written by Christopher H. Scholz and published by Cambridge University Press. This book was released on 2002-05-02 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our understanding of earthquakes and faulting processes has developed significantly since publication of the successful first edition of this book in 1990. This revised edition, first published in 2002, was therefore thoroughly up-dated whilst maintaining and developing the two major themes of the first edition. The first of these themes is the connection between fault and earthquake mechanics, including fault scaling laws, the nature of fault populations, and how these result from the processes of fault growth and interaction. The second major theme is the central role of the rate-state friction laws in earthquake mechanics, which provide a unifying framework within which a wide range of faulting phenomena can be interpreted. With the inclusion of two chapters explaining brittle fracture and rock friction from first principles, this book is written at a level which will appeal to graduate students and research scientists in the fields of seismology, physics, geology, geodesy and rock mechanics.
Download or read book Encyclopedia of Solid Earth Geophysics written by D.E. James and published by Springer Science & Business Media. This book was released on 1989-11-30 with total page 1299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consisting of more than 150 articles written by leading experts, this authoritative reference encompasses the entire field of solid-earth geophysics. It describes in detail the state of current knowledge, including advanced instrumentation and techniques, and focuses on important areas of exploration geophysics. It also offers clear and complete coverage of seismology, geodesy, gravimetry, magnetotellurics and related areas in the adjacent disciplines of physics, geology, oceanography and space science.
Download or read book Regional Geology and Tectonics Principles of Geologic Analysis written by David G. Roberts and published by Elsevier. This book was released on 2012-03-16 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expert petroleum geologists David Roberts and Albert Bally bring you Regional Geology and Tectonics: Principles of Geologic Analysis, volume one in a three-volume series covering Phanerozoic regional geology and tectonics. It has been written to provide you with a detailed overview of geologic rift systems, passive margins, and cratonic basins, it features the basic principles necessary to grasping the conceptual approaches to hydrocarbon exploration in a broad range of geological settings globally. Named a 2013 Outstanding Academic Title by the American Library Association's Choice publication A "how-to" regional geology primer that provides a detailed overview of tectonics, rift systems, passive margins, and cratonic basins The principles of regional geological analysis and the main geological and geophysical tools are discussed in detail. The tectonics of the world are captured and identified in detail through a series of unique geographic maps, allowing quick access to exact tectonic locations. Serves as the ideal introductory overview and complementary reference to the core concepts of regional geology and tectonics offered in volumes two and three in the series.
Download or read book Encyclopedia of Geology written by and published by Academic Press. This book was released on 2020-12-16 with total page 5634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Geology, Second Edition presents in six volumes state-of-the-art reviews on the various aspects of geologic research, all of which have moved on considerably since the writing of the first edition. New areas of discussion include extinctions, origins of life, plate tectonics and its influence on faunal provinces, new types of mineral and hydrocarbon deposits, new methods of dating rocks, and geological processes. Users will find this to be a fundamental resource for teachers and students of geology, as well as researchers and non-geology professionals seeking up-to-date reviews of geologic research. Provides a comprehensive and accessible one-stop shop for information on the subject of geology, explaining methodologies and technical jargon used in the field Highlights connections between geology and other physical and biological sciences, tackling research problems that span multiple fields Fills a critical gap of information in a field that has seen significant progress in past years Presents an ideal reference for a wide range of scientists in earth and environmental areas of study
Download or read book Plate Tectonics and Earthquake Potential of Spreading Ridges and Oceanic Transform Faults written by Peter Bird and published by . This book was released on 2002 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modern Earthquake Engineering written by Junbo Jia and published by Springer. This book was released on 2016-10-01 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses applications of earthquake engineering for both offshore and land-based structures. It is self-contained as a reference work and covers a wide range of topics, including topics related to engineering seismology, geotechnical earthquake engineering, structural engineering, as well as special contents dedicated to design philosophy, determination of ground motions, shock waves, tsunamis, earthquake damage, seismic response of offshore and arctic structures, spatial varied ground motions, simplified and advanced seismic analysis methods, sudden subsidence of offshore platforms, tank liquid impacts during earthquakes, seismic resistance of non-structural elements, and various types of mitigation measures, etc. The target readership includes professionals in offshore and civil engineering, officials and regulators, as well as researchers and students in this field.
Download or read book Detecting and Locating Small Earthquakes On Remote Oceanic Transform Faults written by Rhiannon Vieceli and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Although oceanic transform faults (OTFs) constitute a small fraction of the total plate boundary area, better constraints on OTF tectonic parameters (e.g. fault length, slip rate, thermal structure) compared to other tectonic boundaries make OTFs a useful focus of the investigation of earthquake processes. OTF earthquakes are also accompanied by a large fraction of aseismic deformation that makes them an interesting target for exploring the interaction of creep with slow and quick earthquakes. Because most typical OTFs are quite remote, even indirectly observing their deformation processes is a serious challenge. Standard teleseismic analysis methods have yielded valuable constraints on the first-order characteristics of moderate-to-large magnitude OTF earthquakes, but fundamental questions regarding rupture length and area as well as rupture-front propagation speed remain unknown in these systems; identifying the smaller-magnitude activity that often provides insight to some of these quantities is difficult. Short-period seismic arrays occasionally provide adequate information needed to locate small ($m_b \leq 4.5$) earthquakes along Mid-Atlantic transforms. In this work, we explore the possibility of detecting and locating small earthquakes along remote OTFs using intermediate-period waveform-based comparisons (e.g. cross-correlations) of template signals with the continuous seismic wavefield observed at seismic stations surrounding several OTFs. % The best results were obtained when using data with a bandwidth of $20-25 s \leq T \leq 50 s$ and when implementing the Match-and-Locate (M\&L) method of \emph{Zhang and Wen} [2015] that accounts for modest location differences between the template and target events. As expected, station coverage, template-station geometry, and the number of channels with high-quality data affect the results. When the M\&L method is used, valuable information on relative earthquake locations and magnitude estimates is obtained. While our results indicate that template events may be able to detect earthquakes occurring along the same transform at distances up to $\sim$250 km, the greatest results will be produced when searching for earthquakes closer to the template; a template event of $M_W$ 5.5 with 21 channels of high-quality data is expected to identify a co-located $M_W$~3.4 event roughly 73\% of the time and a template event of $M_W$ 5.0 with 66 channels of high-quality data is expected to identify a co-located $M_W$ 3.5 roughly 87\% of the time. % We applied the M\&L method to the Romanche Transform Fault of the Central Mid Atlantic, and detected 15 small earthquakes occurring near the eastern edge of the fault that may have gone undetected in between 2012-01-01 and 2014-07-01. We also applied the approach to characterize the foreshock and aftershock sequences of the 2015-02-13 $M_W$ 7.1 earthquake of the Charlie-Gibbs Transform Fault in the North Atlantic. We did not detect any uncatalogued foreshocks, but we identified six uncatalogued aftershocks. Still, the results are consistent with experience - oceanic transform systems produce substantially fewer aftershocks that comparable continental systems.
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.
