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 Timing and Slip for Prehistoric Earthquakes on the Superstition Mountain Fault Imperial Valley Southern California written by Lawrence D. Gurrola and published by . This book was released on 1994 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Friends of the Pleistocene Winter Fieldtrip 1990 written by and published by . This book was released on 1990 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paleontology and Geology of the Western Salton Trough Detachment Anza Borrego Desert State Park California written by Paul Remeika and published by San Diego Geological Soc. This book was released on 1995 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 Holocene Geologic Slip Rate for the Mission Creek Strand of the Southern San Andreas Fault Indio Hills written by Juan José Muñoz Zapata and published by . This book was released on 2017 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Slip on the southern San Andreas fault in the northwestern Coachella Valley in Southern California is partitioned among three fault strands: the Mission Creek, Garnet Hill, and Banning strands. The NW-striking Mission Creek strand extends from the Indio Hills into the San Bernardino Mountains, whereas the Banning and Garnet Hill strands strike W-NW and transfer slip into the San Gorgonio Pass region. Together, these three faults accommodate ~ 20 mm/yr of right-lateral motion based on geodetic slip rate estimates. Determining which strand accommodates the majority of fault slip and how slip rates on these strands have varied over Quaternary timescales is critical to seismic hazard assessment for this region. Here I present a new Holocene geologic slip rate estimate from an offset alluvial fan complex along the Mission Creek fault at the Three Palms site in the Indio Hills. The correlation of offset fans precisely located from a satellite image, confirmed by field mapping and B4 LiDAR indicates that the Three Palms fan complex is offset 50.0 ± 5.0 meters. U-series dating on pedogenic carbonate rinds collected at 25-100 cm depth within the deposit constrain the minimum depositional age to 3.49 ± 0.92 ka (95% CI), yielding a maximum slip rate of 19.2 ± 2.0 mm/yr. Cosmogenic 10Be surface exposure dating on boulders yields a scattered dataset with high apparent inheritance and a median age of 13.6 +6.9/-6.7 ka (1[sigma] error). However, the minimum boulder age of 5.4 ± 1.0 ka (2[sigma] error) was interpreted as the maximum depositional age for the fan. This age, along with the preferred offset of 50.0 meters, yields a minimum slip rate of 7.8 ± 0.8 mm/yr. We therefore estimate a Holocene geologic slip rate of 7-21 mm/yr, with a preferred rate of 9-14 mm/yr. This rate overlaps within error with a previously published late Pleistocene slip rate on the Mission Creek strand of 12-22 mm/yr calculated at Biskra Palms Oasis a few kilometers to the southeast.
Download or read book I The Superstition Hills California Earthquakes of 24 November 1987 written by Harold William Magistrale and published by . This book was released on 1990 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Late Holocene Slip Rate Prehistoric Earthquakes and Quaternary Neotectonics of the Northern San Andreas Fault Marin County California written by Tina Marie Niemi and published by . This book was released on 1992 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Holocene Geologic Slip Rate for the Mission Creek Strand of the Southern San Andreas Fault CA written by Rosemarie C. Fryer and published by . This book was released on 2016 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The San Andreas Fault is the primary structure accommodating relative plate motions between the Pacific and North American plates along the southwestern margin of North America. The northern San Andreas Fault (SAF) segment ruptured in 1906 and the central segment releases strain primarily by continuous creep. The south-central Mojave section of SAF ruptured in 1857, but the Coachella Valley section farthest south has not ruptured historically. The Coachella Valley section is therefore considered overdue for an earthquake because it has exceeded its average recurrence interval of ~150-200 years. In the northern Coachella Valley, the Southern SAF (SSAF) splays into three fault strands: the Mission Creek, Banning, and Garnet Hill strands. The NW-striking Mission Creek strand extends from the Indio Hills into the San Bernardino Mountains, whereas the Banning and Garnet Hill strands strike WNW and transfer slip into the San Gorgonio Pass region. Together, the three faults accommodate ~20 mm/yr of right-lateral motion based on geodetic measurements. Determining how slip is partitioned between these faults and how the slip rates have varied over different timescales is critical for southern California seismic hazard models. The purpose of this project was to establish a Holocene geologic slip rate for the Mission Creek strand of the SSAF at the Three Palms slip rate site in the southeast Indio Hills. At the Three Palms Site, located northwest of Biskra Palms, three alluvial fans sourced from three distinct catchments have been offset by the Mission Creek strand. The central portion of these fans is best preserved and records a right lateral displacement of ~57 ± 3 meters. Uranium-series dating of pedogenic carbonate rinds constrain the minimum depositional age of this fan. U-series dates give a standard corrected weighted mean average of 3.49 ± 0.92 ka, yielding a maximum slip rate of 16 +6.1/-3.8 mm/yr. Three samples from an individual clast give a nearly identical isochron age of 3.3 ± 0.6 ka, which provides confidence in the weighted average age. This Holocene maximum slip rate overlaps within error of the previously determined late Pleistocene slip rate measured at Biskra Palms of 12-22 mm/yr, suggesting that the Mission Creek strand slip rate has remained constant over these timescales and that it has remained the dominant fault accommodating slip at the southeast Indio Hills over the past ~50 kyr.
Download or read book San Andreas Fault written by South Coast Geological Society and published by . This book was released on 1989 with total page 720 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 Southern California Geology and Los Angeles Earthquakes written by Robert Thomas Hill and published by . This book was released on 1928 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Hazards and Tectonic History of the San Andreas Fault Zone Los Angeles County California written by Allan G. Barrows and published by . This book was released on 1985 with total page 266 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 Geologic Evidence for Triggered Slip on the Calaveras Fault During the Magnitude 7 1 Loma Prieta Earthquake of October 17 1989 written by Patrick H. McClellan and published by . This book was released on 1989 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earthquake Geology San Andreas Fault System Palm Springs to Palmdale written by and published by . This book was released on 1992 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
