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Paleoseismic Reconnaissance Of The Sevier Fault Kane And Garfield Counties Utah
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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 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 43 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 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 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 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 Paleoseismic Investigation and Long-term Slip History of the Hurricane Fault in Southwestern Utah by : William R. Lund
Download or read book Paleoseismic Investigation and Long-term Slip History of the Hurricane Fault in Southwestern Utah written by William R. Lund and published by Utah Geological Survey. This book was released on 2007-01 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 81 page report presents the results of a study of the Hurricane fault in Utah.
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 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 Geologic Mapping and Paleoseismic Investigations of the Washington Fault Zone, Washington County, Utah, and Mohave County, Arizona by : William R. Lund
Download or read book Geologic Mapping and Paleoseismic Investigations of the Washington Fault Zone, Washington County, Utah, and Mohave County, Arizona written by William R. Lund and published by . This book was released on 2015 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Paleoseismology of Utah 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 regarding paleoearthquake parameters such as earthquake timing, recurrence, displacement, slip rate, fault geometry, and segmentation, which can be used to characterize potential seismic sources and evaluate the long-term seismic hazard of Utah's Quaternary faults. This Miscellaneous Publication presents the results of four individual investigations undertaken to acquire new geologic and paleoseismic data on the Washington fault zone in Utah and northernmost Arizona. (1) New 1:24,000 scale geologic mapping provides improved information on the location and length of young surface ruptures and the relative ages of displaced surficial deposits along the Washington fault zone. (2) A detailed paleoseismic trenching investigation of a scarp formed on a latest Quaternary alluvial fan near Dutchman Draw in Arizona provides new information on paleoearthquake timing, displacement, and recurrence necessary for evaluating the seismic hazard presented by the Fort Pearce section to the St. George metropolitan area. (3) Trace element and major oxide geochemical correlation and radiometric dating 40 Ar/ 39 Ar of mafic volcanic flows displaced across the fault zone in Arizona provide long-term (early to middle Quaternary) vertical sliprate estimates for the Fort Pearce and Sullivan Draw sections of the fault. (4) A geotechnical consultant's surface fault rupture hazard investigation conducted for the Utah Department of Transportation provides new information on fault locations, number of earthquakes, and displacement per earthquake on the central part of the Fort Pearce section
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 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 Evaluating Surface Faulting Chronologies of Graben-Bounding Faults in Salt Lake Valley, Utah - New Paleoseismic Data from the Salt Lake City Segment of the Wasatch Fault Zone and the West Valley Fault Zone by : Christopher B. DuRoss
Download or read book Evaluating Surface Faulting Chronologies of Graben-Bounding Faults in Salt Lake Valley, Utah - New Paleoseismic Data from the Salt Lake City Segment of the Wasatch Fault Zone and the West Valley Fault Zone written by Christopher B. DuRoss and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Salt Lake City segment of the Wasatch Fault zone and the West Valley fault zone are Holocene active faults that have evidence of large magnitude surface faulting earthquakes. Paleoseismic research trenches provide data that shed light on the faulting behavior and interaction of fault systems.
Book Synopsis Alluvial Fan Flooding by : National Research Council
Download or read book Alluvial Fan Flooding written by National Research Council and published by National Academies Press. This book was released on 1996-11-07 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alluvial fans are gently sloping, fan-shaped landforms common at the base of mountain ranges in arid and semiarid regions such as the American West. Floods on alluvial fans, although characterized by relatively shallow depths, strike with little if any warning, can travel at extremely high velocities, and can carry a tremendous amount of sediment and debris. Such flooding presents unique problems to federal and state planners in terms of quantifying flood hazards, predicting the magnitude at which those hazards can be expected at a particular location, and devising reliable mitigation strategies. Alluvial Fan Flooding attempts to improve our capability to determine whether areas are subject to alluvial fan flooding and provides a practical perspective on how to make such a determination. The book presents criteria for determining whether an area is subject to flooding and provides examples of applying the definition and criteria to real situations in Arizona, California, New Mexico, Utah, and elsewhere. The volume also contains recommendations for the Federal Emergency Management Agency, which is primarily responsible for floodplain mapping, and for state and local decisionmakers involved in flood hazard reduction.
Book Synopsis Compilation of U.S. geological survey national earthquake hazards reduction program final technical reports for Utah by :
Download or read book Compilation of U.S. geological survey national earthquake hazards reduction program final technical reports for Utah written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of the Paleoseismology of Utah series, the Utah Geological Survey (UGS) has acquired, scanned, and released in digital format previously hard-to-access legacy reports of paleoseismic fault investigations conducted in Utah. This compilation includes 20 reports pertaining to U.S. Geological Survey (USGS)-funded National Earthquake Hazards Reduction Program (NEHRP) paleoseismic investigations conducted between 1978 and 2012.
Download or read book Geologic Hazards Slide Sets written by and published by . This book was released on 1990 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings Volume, Basin and Range Province Seismic-Hazards Summit by : William R. Lund
Download or read book Proceedings Volume, Basin and Range Province Seismic-Hazards Summit written by William R. Lund and published by . This book was released on 1998 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Oquirrh Fault Zone, Tooele County, Utah by : William R. Lund
Download or read book The Oquirrh Fault Zone, Tooele County, Utah written by William R. Lund and published by Utah Geological Survey. This book was released on 1996 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two reports in this Special Study provide critical geologic and paleoseismic information on the Oquirrh fault zone, a Quaternary fault in eastern Tooele County, west-central Utah. The Oquirrh fault zone has long been recognized as a potential source of large earthquakes which could affect military and hazardous waste facilities, nearby towns, and populous areas of the more distant central Wasatch Front. 64 pages + 2 plates
