Download or read book Multi scale Analysis of San Andreas Fault Zone Physical Properties written by Tamara Jeppson and published by . This book was released on 2014 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical Properties and Multi scale Seismic Anisotropy in the Crust Surrounding the San Andreas Fault Near Parkfield CA written by Naomi L. Boness and published by . This book was released on 2005 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Reflection Survey Data on the San Andreas Fault Zone for Velocity and Attenuation Properties written by T. V. McEvilly and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The San Andreas Fault System California written by and published by . This book was released on 1990 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the history, geology, geomorphology, geophysics, and seismology of the most well known plate tectonic boundary in the world.
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 Displacement Along the San Andreas Fault California written by John C. Crowell and published by Geological Society of America. This book was released on 1962 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical and Physical Changes Within the Damage Zone of the Mojave Segment of the San Andreas Fault written by and published by . This book was released on 2010 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: We mapped a tabular zone of pink potassium feldspar alteration in granitic rocks within the damage zone of the San Andreas fault from Arrowhead Springs to Gorman in southern California. Alteration of K-feldspar to a pink color is spatially associated with the active trace of the fault. In the literature, such coloration is commonly attributed to metasomatism. To better understand the processes leading to this alteration along the San Andreas, we studied two transects perpendicular to the trace of the fault with different structural histories near Littlerock and Lake Hughes, California. Lake Hughes is on a portion of the San Andreas that has been active throughout much of the faults history, while Littlerock is on a relatively young strand that was one a part of an extensional step over. Furthermore, Littlerock exhibits a broad zone of pulverization within the inner damage zone whereas Lake Hughes contains a much narrower zone of pulverization within this part of the fault zone, in spite of its larger displacement. To study the origin of the pink coloration and to better understand the deformation processes active with the damage zone, we collected samples from all three distinct zones along each transect; parent rock, outer damage zone, and pulverized rocks within the inner damage zone. In order to calculate porosity, the collected samples were analyzed for bulk and grain density. XRF was used to determine their chemical composition. Thin sections were made in order to study textures and microstructures, and selected samples were analyzed for particle size distribution. The results of our study indicate that mechanical fragmentation dominates in both transects, and that pink K-feldspar is the result of an increase in volumetric strain due to an increase in fracture density and porosity, which then acted as a conduit for fluid migration within the fault zone. Fluids within intra-granular fractures oxidize the iron inclusions that are commonly found within K-feldspar crystal structure, resulting in the pink coloration. Fracturing and fluid migration within the fault zone appears to be cyclic as indicated by numerous cross cutting open, healed, and in filled cracks. The two transects differ slightly in their chemical alteration signal. Littlerock experienced a bulk mass increase of about 10% in the outer damage zone and 12% in the pulverized rocks of the inner damage zone due to elemental mass changes, while Lake Hughes experienced no bulk mass change and relatively little elemental mass change. Both sites contain evidence for crystal-plastic deformation within feldspars and quartz. However, at Littlerock these features increase within the damage zone towards the fault core, whereas at Lake Hughes, they are present within the wall rock and only increase slightly within the damage zone. Both sites contain plagioclase which has been altered to sericite, and at Littlerock, some has been altered to laumontite. However, at Lake Hughes, sericite is also present within the wall rock samples. At Littlerock biotite is altered to chlorite, while at Lake Hughes the wall rock contains chlorite and biotite partially altered to clay. Some of the observed mineral alteration products are generally associated with elevated temperatures. The pink alteration of K-feldspar at both sites is a clear indicator of micro-scale fracturing and fluid migration associated with the San Andreas fault. It appears that at Littlerock, migration of hydrothermal fluids occurred within an extensional step-over whereas at Lake Hughes fluid migration occurred in a more simple setting.
Download or read book The San Andreas Fault System in the Vicinity of the Central Transverse Ranges Province Southern California written by Jonathan C. Matti and published by . This book was released on 1992 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Where s the San Andreas Fault written by Philip Ward Stoffer and published by . This book was released on 2006 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The San Andreas Fault System written by Robert E. Powell and published by Geological Society of America. This book was released on 1993 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors of the ten chapters in this volume critically examine the geologic evidence that constrains timing and magnitude of movement on various faults of the San Andreas system, and they develop and discuss paleogeologic reconstructions based on these constraints. The volume offers new insight into the evolution of the San Andreas fault system,
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
Download or read book Multiscale Modeling of Deep water Channel Deposits written by Lisa Elizabeth Stright and published by Stanford University. This book was released on 2011 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sedimentological models capture the processes and subsequent deposits that explain the distribution of facies within a depositional system. The first sedimentological models for deep-water depositional systems were portrayed as idealized shelf break to slope submarine basin sediment dispersal systems. These models were developed from ancient outcrop exposures (Mutti and Lucchi, 1972) and from the modern day seafloor (Normark, 1970, 1978). More recent model development has been based largely on observations from modern slope channels including the Amazon Channel (Pirmez and Imran; 2003), offshore West African (Abreu et al., 2003; Deptuck et al., 2003), and attempts at generalization from multiple studies (Mayall et al., 2006), as well as ancient outcrop studies (e.g., Brushy Canyon; Gardner et al., 2003). Concepts from these sedimentological models have been the principle foundation for development of quantitative geostatistical models. A geostatistical model adapts the conceptualization of facies distribution from the sedimentological model. This information is then coded into a three-dimensional, gridded computer model directly constrained to available data (i.e., wireline logs, core data, and seismic attributes). Geostatistical models developed for deep-water depositional systems have primarily focused on either sinuous channels confined by levees or erosional surfaces (e.g., Larue and Hovadik, 2006; Labourdette et al., 2007; Pyrcz et al., 2008; McHargue et al., 2010; Sylvester et al., 2010) or basin-floor or overbank lobes associated with loss of confinement from sinuous channels (Pyrcz et al., 2005; Wellner et al., 2006; Zhang et al., 2009). Although widely used, such geostatistical models have limited applicability in fitting all deep-water depositional systems, and cases exists that require modification of such models or creation of entirely new models. In this dissertation I show the importance of synthesizing sedimentological and geostatistical models based on observations from the data. The primary objectives of this dissertation are 1) to present methodologies to enable the creation of better sedimentological models from remote sensing data, and 2) to present a means to model depositional architectures for a system that cannot currently be captured with standard geostatistical modeling approaches. The main contributions are threefold. The first contribution, presented in Chapter 1, is a methodology designed to extract subseismic, lithologic information from inverted pre-stack seismic reflectivities. Also, in Chapter 1, the predictive power of this methodology is demonstrated on a dataset from the subsurface of the Molasse Basin in Upper Austria. Beyond this dissertation, Bernhardt et al. (in review) adopted the methodology to support the development of a more predictive sedimentological model for the same dataset. The second contribution, presented in Chapter 2, is a new approach for building predictive quantitative spatial models for a deep-water channel belt, in which sand deposition is controlled by mass-transport-deposit-topography. This methodology leverages sedimentological interpretations derived from subseismic, lithologic information as presented in Chapter 1 and the sedimentological work of Bernhardt et al. (in review). The final contribution of this dissertation is presented in two outcrop studies. Chapters 3 and 4 utilize extensive data collected from deep-water channel outcrops to build digital outcrop models. The model from Chapter 3 is used to demonstrate the predictive power of pre-stack seismic-reflectivity data in interpreting the large-scale architecture of a heterolithic deep-water channel system exposed in the sea cliffs along Blacks Beach near La Jolla, California. Finally, the outcrop modeling study presented in Chapter 4 presents a methodology to capture structural and stratigraphic uncertainty in outcrop observations in order to analyze the three-dimensional channel morphology of the Cerro Toro deep-water channel belt exposed in Sierra del Toro outcrops in the Magallanes Basin of Chile. These four chapters are described in more detail below.
Download or read book Best Practices in Physics based Fault Rupture Models for Seismic Hazard Assessment of Nuclear Installations written by Luis A. Dalguer and published by Birkhäuser. This book was released on 2017-12-20 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume collects several extended articles from the first workshop on Best Practices in Physics-based Fault Rupture Models for Seismic Hazard Assessment of Nuclear Installations (BestPSHANI). Held in 2015, the workshop was organized by the IAEA to disseminate the use of physics-based fault-rupture models for ground motion prediction in seismic hazard assessments (SHA). The book also presents a number of new contributions on topics ranging from the seismological aspects of earthquake cycle simulations for source scaling evaluation, seismic source characterization, source inversion and physics-based ground motion modeling to engineering applications of simulated ground motion for the analysis of seismic response of structures. Further, it includes papers describing current practices for assessing seismic hazard in terms of nuclear safety in low seismicity areas, and proposals for physics-based hazard assessment for critical structures near large earthquakes. The papers validate and verify the models by comparing synthetic results with observed data and empirical models. The book is a valuable resource for scientists, engineers, students and practitioners involved in all aspects of SHA.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gravity Magnetics and Geology of the San Andreas Fault Area Near Cholame California written by William F. Hanna and published by . This book was released on 1973 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Fractures and Fluid Flow written by National Research Council and published by National Academies Press. This book was released on 1996-08-27 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific understanding of fluid flow in rock fracturesâ€"a process underlying contemporary earth science problems from the search for petroleum to the controversy over nuclear waste storageâ€"has grown significantly in the past 20 years. This volume presents a comprehensive report on the state of the field, with an interdisciplinary viewpoint, case studies of fracture sites, illustrations, conclusions, and research recommendations. The book addresses these questions: How can fractures that are significant hydraulic conductors be identified, located, and characterized? How do flow and transport occur in fracture systems? How can changes in fracture systems be predicted and controlled? Among other topics, the committee provides a geomechanical understanding of fracture formation, reviews methods for detecting subsurface fractures, and looks at the use of hydraulic and tracer tests to investigate fluid flow. The volume examines the state of conceptual and mathematical modeling, and it provides a useful framework for understanding the complexity of fracture changes that occur during fluid pumping and other engineering practices. With a practical and multidisciplinary outlook, this volume will be welcomed by geologists, petroleum geologists, geoengineers, geophysicists, hydrologists, researchers, educators and students in these fields, and public officials involved in geological projects.
Download or read book Field Guide to the San Andreas Fault written by David K. Lynch and published by David Lynch. This book was released on 2009-04-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Field Guide to the San Andreas Fault (published by Thule Scientific and distributed by Sunbelt Publications) allows one to get up close and personal to the San Andreas Fault. See and touch the world's most famous fault on one of twelve easy day trips between Cape Mendocino and the Mexican Border. The book includes over 200 full-color photographs and illustrations, mile-by-mile road logs, GPS coordinates for hundreds of fault features, accurate fault coordinates to within 100 feet, complete geologic explanations, and a glossary. Many of the annotated routes have side trips to seldom visited locales. The day trips are designed to be relaxing, leading to uncrowded areas with spectacular scenery, perfect for family getaways. No off-road vehicle is needed.
