Quaternary geology and neotectonic activity along the Fish Lake Valley fault zone, Nevada and California
AuthorSawyer, Thomas Len
Geological Sciences & Engineering
StatisticsView Usage Statistics
The right-divergent Fish Lake Valley fault zone (FL VFZ), a 80 KM-long component of the northern Death Valley fault system, comprises contemporaneous NW-striking dextral faults, N-striking normal faults, NE-striking left(?)-divergent faults, and locally WNW-striking contractional faults. The fault zone terminate s in a horsetail splay where the minimum right-slip rate is 0 .7--0.8 mm/yr. The styles and rates of faulting are based on a sequence of morphostratigraphic units disrupted by the FL VFZ. Geomorphic surface correlation s, radiocarbon analyses, tephrochronology, and soil development studies were used to estimate unit ages. Paleoseismicity studies have identified three discrete slip events in the last 4 to 2 ka on the northern FL VFZ. The last two significant events were similar, suggesting a characteristic earthquake behavior and magnitude s of 7. 1 ± 0.3. The last large event occurred 1 ka (±0 .6, -0.5) and comparable events have repeated every 1. 1 Ka ( +2 . 3, -0.5 ). Source structure characteristics suggest a MCE of M 7.3 ± 0.4.
Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.
Showing items related by title, author, creator and subject.
Faulting and tectonics in the foreland basin fold/thrust belt of the San Juan Province, Argentina, and a comparison to the Yakima fold/thrust belt of the northwestern United States Whitney, Robert A (University of Nevada, Reno, 1991)The San Juan Province of west-central Argentina lies in a region of crustal shortening, the result of subhorizontal subduction in the Peru-Chile trench to the west. This crustal shortening is manifest as a north-south ...
Whitney, Robert A (University of Nevada, Reno, 1980)Structural-tectonic and surficial geologic studies of northern Dixie Valley, Nevada, using photogeologic methods, indicate the valley is a complex asymmetric graben bounded by high-angle Basin and Range faults. The graben ...
Roquemore, Glenn R (University of Nevada, Reno, 1981)The Coso Range contains faults that have been active in the Holocene. Some of these faults have moved about 100 years ago, possibly with the 1872 Owens Valley earthquake. Exploratory trenches exposed offsets up to 3.4 ...