Download or read book Confirmation of a New Geometric and Kinematic Model of the San Andreas Fault at Its Southern Tip Durmid Hill Southern California written by Daniel K. Markowski and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The southern - 100 km long Coachella section of the San Andreas fault is the only section of the fault in southern California that has not experienced a historical earthquake, and it may be the most overdue section of the fault. Numerical models of rupture propagation shows that a large earthquake with a nucleation one in the Durmid Hill field area would produce particularly destructive and deadly ground shaking in southern California. This is used as the model earthquake for the ShakeOut exercises in southern California because it is may represent the worst-case scenario for southern California but does not appear to be a very likely scenario following this research. Building on existing geologic mapping that shows major Pleistocene to Holocene contraction near the hypothesized nucleation, we use geologic mapping to develop and validate a competing geometric and kinematic model for the southern tip of the San Andreas Fault. A ladder-like-fault model explains the widespread contraction in the Durmid Hill study area as the result of contraction between the main strand of the San Andreas fault and East Shoreline strand. The East Shoreline strand of the San Andreas fault is the newly discovered fault and is dispersed across a zone between 0.5 to 1 km wide, and encompasses an area on the northeast shore of the Salton Sea. There is persistent and strong contraction across the entire - 1.5 to 3.5 km wide San Andreas fault zone because both dextral "side-rail" faults are counterclockwise, and in a contractional bend, relative to current plate motions. This contractional bend was previously documented for the main strand of San Andreas fault. A new digital geologic map and field studies document the stratigraphy and structures at a range of scales between Bombay Beach and Salt Creek. Numerous folds, narrow strike-slip and oblique-slip faults, and sheared damaged rocks in latest Miocene (?) to Holocene sediment lie within the wide and very complex damage zone of the main strand of the San Andreas fault zone. The East Shoreline strand of the San Andreas fault system buffers the main strand from major stress changes produced by deformation along the sinistral to sinistral-normal Extra fault array under the Salton Sea.
Download or read book Southern San Andreas Crustal Deformation written by J. Beavan and published by . This book was released on 1991 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transpression and Fault Interaction Along the Southern San Andreas Fault Durmid Hill California written by Roland Bürgmann and published by . This book was released on 1989 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Kinematics of Transrotational Tectonism in the California Transverse Ranges and Its Contribution to Cumulative Slip Along the San Andreas Transform Fault System written by William R. Dickinson and published by Geological Society of America. This book was released on 1996-01-01 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 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.
Download or read book High Geologic Slip Rates Since Early Pleistocene Initiation of the San Jacinto and San Felipe Fault Zones in the San Andreas Fault System Southern California USA written by and published by Geological Society of America. This book was released on 2010-01-01 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The San Jacinto right-lateral strike-slip fault zone is crucial for understanding plate-boundary dynamics, regional slip partitioning, and seismic hazards within the San Andreas fault system of southern California, yet its age of initiation and long-term average slip rate are controversial. This synthesis of prior and new detailed studies in the western Salton Trough documents initiation of structural segments of the San Jacinto fault zone at or slightly before the 1.07 Ma base of the Jaramillo subchron. In Special Paper 475, five new estimates of displacement are developed using offset successions of crystalline rocks; distinctive marker beds in the late Cenozoic basin fill; analysis of strike-slip-related fault-bend folds; quantification of strain in folds at the tips of dextral faults; and gravity, magnetic, and geomorphic data sets."--Publisher's website.
Download or read book Tectonic Reconstruction of the Southern San Andreas Fault System Using Segments of the Chocolate Mountains Anticlinorium in the San Gabriel Mountains Southern California U S A written by Kevin Thomas Coffey and published by . This book was released on 2019 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: The San Gabriel Mountains of southern California contain anticlinoria of schist thought to correlate with one another, and with the Chocolate Mountains anticlinorium to the east. These correlations provide cumulative-slip estimates for the Punchbowl and southern San Andreas faults, respectively; however, the validity of these correlations, as well as the original orientations of these anticlinoria, is debated. This dissertation presents four related studies, each addressing a different aspect of this problem. Chapter 1 presents sedimentologic and structural data verifying that the two anticlinoria of the San Gabriel Mountains were continuous prior to 40-50 km of dextral slip on the Punchbowl fault, and casting doubt on the 80-110 km of dextral slip on the San Francisquito-Fenner-Clemens Well fault suggested by some prior studies. Chapter 2 presents structural data from the schist of the larger anticlinorium of the San Gabriel Mountains, which supports its correlation with the Chocolate Mountains anticlinorium, and thus estimates of approximately 240 km of dextral slip on the southern San Andreas fault. New data are combined with previously published structural and paleomagnetic data, which have been interpreted as implying different architectures for the anticlinorium, suggesting a model reconciling the datasets, and implying an originally linear, approximately northeast/southwest trend of the anticlinorium. Chapter 3 proposes a strain-partitioning model for the anomalously oriented Mojave segment of the southern San Andreas fault, in which slip south of this segment is partitioned within this segment into a strike-slip component along the San Andreas fault itself, and a shortening component beside it. This model, together with a previous study's insight, brings otherwise contradictory cumulative-slip estimates of approximately 240 km and 160 km for the southern San Andreas fault into agreement. Chapter 4 presents new fault-kinematic data, and sequential reconstructions of the San Gabriel block as maps and cross sections, suggesting that the anticlinorium is in the hanging wall of a detachment fault, rather than the exhumed footwall as previously suggested. New geochronologic and geochemical data support correlation of the anticlinoria and constrain the onset of extension to ca. 26-25 Ma.
Download or read book A Land in Motion written by and published by University of California Press. This book was released on 1999 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a beautifully illustrated general-interest book on the most famous fault on Earth. The San Andreas Fault, site of the San Francisco earthquake of 1906 and many others, is the boundary between two of the earth's crustal plates, and it is a major architect of California's diverse landscapes.
Download or read book San Andreas Fault in Southern California written by John C. Crowell and published by . This book was released on 1975 with total page 286 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 312 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 Fault Interaction Segmentation and Geometry Along the San Andreas Fault System Southern California written by Craig Nicholson and published by . This book was released on 1992 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Southern San Andreas Fault written by and published by . This book was released on 1997 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evidence of Prehistoric Earthquakes on the Superstition Hills Fault Southern California and a Holocene Slip Rate of the San Andreas Fault at Gorman Creek Southern California written by Scott Charles Lindvall and published by . This book was released on 1988 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Magnitude 8 written by Philip L. Fradkin and published by Henry Holt and Company. This book was released on 2014-02-04 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnitude 8 is the archetypal natural disaster defined. To understand the cataclysmic earthquake that will tear California apart one day, Philip L. Fradkin has written a dramatic history of earthquakes and an eloquent guide to the San Andreas Fault, the world's best-known tectonic landscape. The author includes vivid stories of earthquakes elsewhere: in New England, the central Mississippi River Valley, New York City, Europe, and the Far East. Always, he combines human and natural drama to place the reader at the epicenter of the most instantaneous and unpredictable of all the Earth's phenomena. Following the San Andreas Fault from Cape Mecino to Mexico--canoeing the fault line in northern California and walking underground through the Hollywood fault--noted environmental historian Philip L. Fradkin reclaims the human dimensions of earthquakes from the science-dominated accounts.
