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Paleoseismology Of The Wasatch Fault Zone
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Book Synopsis Post-Provo Paleoearthquake Chronology of the Brigham City Segment, Wasatch Fault Zone, Utah by : James McCalpin
Download or read book Post-Provo Paleoearthquake Chronology of the Brigham City Segment, Wasatch Fault Zone, Utah written by James McCalpin and published by Utah Geological Survey. This book was released on 2002 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Utah Geological Survey Miscellaneous Publication, Post-Provo Paleoearthquake Chronology of the Brigham City Segment, Wasatch Fault Zone, Utah, is the eleventh report in the Paleoseismology of Utah series. This series makes the results of paleoseismic investigations in Utah available to geoscientists, engineers, planners, public officials, and the general public. These studies provide critical information on paleoearthquake parameters such as timing, recurrence, displacement, slip rate, and fault geometry which can be used to characterize potential seismic sources and evaluate the long-term seismic hazard presented by Utah’s Quaternary faults. This report presents the results of the most extensive single paleoseismic-trenching project yet conducted on the Wasatch fault zone. The purpose of the study was to lengthen the paleoseismic chronology for the Brigham City segment of the Wasatch fault zone beyond the 6,000-year record previously available, and to resolve questions regarding the irregular pattern of paleoearthquakes reported by earlier workers for the Brigham City segment. This study makes extensive use of radiocarbon, thermoluminescence, and infrared stimulated luminescence dating techniques to develop a real-time chronology of past surface-faulting earthquakes.
Book Synopsis Paleoseismic Investigation of the Northern Strand of the Nephi Segment of the Wasatch Fault Zone at Santaquin, Utah by : Christopher B. DuRoss
Download or read book Paleoseismic Investigation of the Northern Strand of the Nephi Segment of the Wasatch Fault Zone at Santaquin, Utah written by Christopher B. DuRoss and published by Utah Geological Survey. This book was released on 2008 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: This CD contains a 33 page report, appendix, and plate. This study presents the results of fault-trench excavations near Santaquin, Utah, and includes discussion of (1) previous paleoseismic investigations on the Nephi segment, (2) the geology of the Santaquin trench site and excavations (3) paleoseismic results, including the timing of the most recent surface-faulting earthquake, fault displacement and slip rate, and surface-faulting earthquake recurrence and (4) implications for the segmentation of the southern Wasatch fault zone.
Book Synopsis Paleoseismic Investigation at Rock Canyon, Provo Segment, Wasatch Fault Zone, Utah County, Utah by : William R. Lund
Download or read book Paleoseismic Investigation at Rock Canyon, Provo Segment, Wasatch Fault Zone, Utah County, Utah written by William R. Lund and published by Utah Geological Survey. This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field work for this paleoseismic investigation at Rock Canyon was performed in 1988. It was one of three studies conducted in the late 1980s and early 1990s to determine if the Provo segment of the Wasatch fault zone should be subdivided into three smaller segments as tentatively proposed by Machette and others on the basis of their geologic mapping. This investigation was the last of the three studies performed. Those results, combined with the results of paleoseismic investigations at American Fork Canyon and Mapleton, showed that the Wasatch fault where it passes through Utah Valley probably consists of a single, almost 70-kilometer-Iong fault segment (Machette and others, 1992). Publication of the details of the Rock Canyon study has been delayed for several years, chiefly due to the press of new job duties on the part of the investigators. The information remains important and is presented here for the use of those individuals interested in earthquake hazards and seismic-source characteristics of the Wasatch fault in Utah Valley. 21 pages + 2 plates
Book Synopsis Holocene Surface-faulting Earthquakes at the Spring Lake and North Creek Sites of the Wasatch Fault Zone by : Christopher B. DuRoss
Download or read book Holocene Surface-faulting Earthquakes at the Spring Lake and North Creek Sites of the Wasatch Fault Zone written by Christopher B. DuRoss and published by . This book was released on 2017 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis History of Late Holocene Earthquakes at the Willow Creek Site and on the Nephi Segment, Wasatch Fault Zone, Utah by : Anthony J. Crone
Download or read book History of Late Holocene Earthquakes at the Willow Creek Site and on the Nephi Segment, Wasatch Fault Zone, Utah written by Anthony J. Crone and published by Utah Geological Survey. This book was released on 2014-09-15 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 43-page report presents new data from the Willow Creek site that provides well-defined and narrow bounds on the times of the three youngest earthquakes on the southern strand of the Nephi segment, Wasatch Fault zone, and refines the time of the youngest earthquake to about 200 years ago. This is the youngest surface rupture on the entire Wasatch fault zone, which occurred about a century or less before European settles arrived in Utah. Two trenches at the Willow Creek site exposed three scarp-derived colluvial wedges that are evidence of three paleoearthquakes. OxCal modeling of ages from Willow Creek indicate that paleoearthquake WC1 occurred at 0.2 ± 0.1 ka, WC2 occurred at 1.2 ± 0.1 ka, and WC3 occurred at 1.9 ± 0.6 ka. Stratigraphic constraints on the time of paleoearthquake WC4 are extremely poor, so OxCal modeling only yields a broadly constrained age of 4.7 ± 1.8 ka. Results from the Willow Creek site significantly refine the times of late Holocene earthquakes on the Southern strand of the Nephi segment, and this result, when combined with a reanalysis of the stratigraphic and chronologic information from previous investigations at North Creek and Red Canyon, yield a stronger basis of correlating individual earthquakes between all three sites.
Book Synopsis Paleoseismic Investigation on the Salt Lake City Segment of the Wasatch Fault Zone at the South Fork Dry Creek and Dry Gulch Sites, Salt Lake County, Utah by : Bill D. Black
Download or read book Paleoseismic Investigation on the Salt Lake City Segment of the Wasatch Fault Zone at the South Fork Dry Creek and Dry Gulch Sites, Salt Lake County, Utah written by Bill D. Black and published by Utah Geological Survey. This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The South Fork Dry Creek and Dry Gulch sites lie within a few hundred meters of each other in the southeastern part of the Salt Lake Valley, and together provide the only location on the heavily urbanized Salt Lake City segment of the Wasatch fault zone where it is possible to develop a complete surface-faulting chronology for the segment since middle Holocene time (the past 6,000 years). Investigations at the two sites took place intermittently between 1985 and 1995 as permission was obtained to trench more and more of the scarps within the broad fault zone. The new information reported here on the size, timing, and especially recurrence of surface-faulting earthquakes on the Salt Lake City segment shows that the earthquake hazard presented by this segment of the Wasatch fault is greater than previously thought. Such information is vital to public officials, planners, and others making decisions regarding earthquake-hazard mitigation. 22 pages + 1 plate
Book Synopsis Paleoseismology of the Wasatch Fault Zone by : Geological Survey (U.S.)
Download or read book Paleoseismology of the Wasatch Fault Zone written by Geological Survey (U.S.) and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Paleoseismic Investigation of the Clarkston, Junction Hills, and Wellsville Faults, West Cache Fault Zone, Cache County, Utah by : Bill D. Black
Download or read book Paleoseismic Investigation of the Clarkston, Junction Hills, and Wellsville Faults, West Cache Fault Zone, Cache County, Utah written by Bill D. Black and published by Utah Geological Survey. This book was released on 2000 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field work for this paleoseismic investigation was performed in 1997 at three sites (Winter Canyon, Roundy Farm, and Deep Canyon) on the Clarkston, Junction Hills, and Wellsville faults. These faults, along with several lesser associated faults nearby, comprise the West Cache fault zone on the west side of Cache Valley. No previous paleoseismic studies had been conducted on these faults. The information reported here on the size, timing, and recurrence of surface-faulting earthquakes on the West Cache fault zone is critical to public officials, planners, and others making decisions regarding earthquake-hazard mitigation in Cache Valley and the northern Wasatch front. 23 pages + 1 plate
Book Synopsis Paleoseismic Reconnaissance of the Sevier Fault, Kane and Garfield Counties, Utah by : William R. Lund
Download or read book Paleoseismic Reconnaissance of the Sevier Fault, Kane and Garfield Counties, Utah written by William R. Lund and published by Utah Geological Survey. This book was released on 2008 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 37 page report presents the results of a study of the Sevier fault in Utah.
Book Synopsis Consensus Preferred Recurrence-interval and Vertical Slip-rate Estimates by : William R. Lund
Download or read book Consensus Preferred Recurrence-interval and Vertical Slip-rate Estimates written by William R. Lund and published by Utah Geological Survey. This book was released on 2005-06-30 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of the Utah Quaternary Fault Parameters Working Group (hereafter referred to as the Working Group) review and evaluation of Utah’s Quaternary fault paleoseismic-trenching data. The purpose of the review was to (1) critically evaluate the accuracy and completeness of the paleoseismictrenching data, particularly regarding earthquake timing and displacement, (2) where the data permit, assign consensus, preferred recurrence-interval (RI) and vertical slip-rate (VSR) estimates with appropriate confidence limits to the faults/fault sections under review, and (3) identify critical gaps in the paleoseismic data and recommend where and what kinds of additional paleoseismic studies should be performed to ensure that Utah’s earthquake hazard is adequately documented and understood. It is important to note that, with the exception of the Great Salt Lake fault zone, the Working Group’s review was limited to faults/fault sections having paleoseismic-trenching data. Most Quaternary faults/fault sections in Utah have not been trenched, but many have RI and VSR estimates based on tectonic geomorphology or other non-trench-derived studies. Black and others compiled the RI and VSR data for Utah’s Quaternary faults, both those with and without trenches.
Book Synopsis Surficial-geologic Reconnaissance and Scarp Profiling on the Collinston and Clarkston Mountain Segments of the Wasatch Fault Zone, Box Elder County, Utah by : Michael D. Hylland
Download or read book Surficial-geologic Reconnaissance and Scarp Profiling on the Collinston and Clarkston Mountain Segments of the Wasatch Fault Zone, Box Elder County, Utah written by Michael D. Hylland and published by Utah Geological Survey. This book was released on 2007 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report summarizes a Utah Geological Survey project to characterize the relative level of activity of the Collinston and Clarkston mountain segments of the Wasatch Fault Zone.
Book Synopsis Post-Bonneville Paleoearthquake Chronology of the Salt Lake City Segment, Wasatch Fault Zone, from the 1999 "Megatrench" Site by : James McCalpin
Download or read book Post-Bonneville Paleoearthquake Chronology of the Salt Lake City Segment, Wasatch Fault Zone, from the 1999 "Megatrench" Site written by James McCalpin and published by Utah Geological Survey. This book was released on 2002 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a paleoseismic investigation designed to date a long series of consecutive earthquakes on the Wasatch fault zone and to measure the variability of recurrence times between the events. Geologists have long recognized that the comparatively short average recurrence interval (compared to most other basin-and-range normal faults) between large surface-faulting earthquakes on the Salt Lake City segment of the Wasatch fault zone during mid- to late-Holocene time is potentially anomalous, and possibly affected by the rise and fall of Lake Bonneville. This study extends the paleoearthquake record back to Bonneville time, nearly doubling the previous record, and provides new information on the timing and periodicity of surface faulting on the Salt Lake City segment from the latest Pleistocene through the Holocene. The trench and accompanying auger hole for this study exposed 26 meters of vertical section, roughly four times that of a typical paleoseismic trench on the Wasatch fault zone, hence the name “Megatrench.”
Book Synopsis Paleoseismology by : James P. McCalpin
Download or read book Paleoseismology written by James P. McCalpin and published by Academic Press. This book was released on 2009-07-02 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paleoseismology has become an important component of seismic risk analysis, which is mandated for nuclear power plants, dams, waste repositories, and other critical structures. This book is the first in the English language to be devoted solely to paleoseismology. It summarizes the development of the field from the 1960s to the present, encompassing material that is currently widely dispersed in journal articles. Includes a comprehensive review of the techniques currently used in paleoseismology Emphasizes practical methods of data collection and field studies Covers interpretation of field data based on current theory concerning fault segmentation and recurrence cycles Contains more than 170 line drawings and 50 photographs of paleoseismic phenomena
Book Synopsis Assessing the Paleoseismic Activity of the Brigham City Segment, Wasatch Fault Zone, Utah by : James McCalpin
Download or read book Assessing the Paleoseismic Activity of the Brigham City Segment, Wasatch Fault Zone, Utah written by James McCalpin and published by . This book was released on 1994 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Wasatch Fault by : Sandra N. Eldredge
Download or read book The Wasatch Fault written by Sandra N. Eldredge and published by Utah Geological Survey. This book was released on 1996-01-22 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: A beautifully designed and easy to understand publication discussing the geologic history of the Wasatch Fault and possible dangers it poses to anyone living nearby. This is a perfect introduction to the fault for anyone of all ages.
Book Synopsis The Number and Timing of Holocene Paleoseismic Events on the Nephi and Levan Segments, Wasatch Fault Zone, Utah by : Michael Jackson
Download or read book The Number and Timing of Holocene Paleoseismic Events on the Nephi and Levan Segments, Wasatch Fault Zone, Utah written by Michael Jackson and published by . This book was released on 1991 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Paleoseismic Analysis of the Wasatch Fault Zone at the Brigham City Trench Site, Brigham City, Utah and Pole Patch Trench Site, Pleasant View, Utah by : Stephen F. Personius
Download or read book Paleoseismic Analysis of the Wasatch Fault Zone at the Brigham City Trench Site, Brigham City, Utah and Pole Patch Trench Site, Pleasant View, Utah written by Stephen F. Personius and published by Utah Geological Survey. This book was released on 1991 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
