A fault trace is also the line commonly plotted on geologic maps to represent a fault. If you expect that your search will result in a large number of results (more than 40), you can reduce the amount of time to obtain those results by limiting the number of results on each page at the bottom of the search form. Fault definition is - weakness, failing; especially : a moral weakness less serious than a vice. The computations for these maps and data used 50 year return periods on firm rock at 760 m/sec. be somebody’s fault (that) It’s your fault we’re late. Our website presents—for the first time—a single source that summarizes important information on paleoseismic (ancient earthquake) parameters. The database is primarily a text-based collection of descriptive data that will serve a wide and varied audience. Maps of these geologic structures are linked to a database containing detailed descriptions and references. The additional geographic search options are AMS sheet and physiographic province. Shear stressOccurs majorl… Fault rock: A rock associated with a fault or shear zone. Our definition of published literature includes typical sources (journals and maps), as well as M.S. There are three basic types of search fields: those with (1) pull-down menus, (2) text, and (3) numeric. Geologists can categorize faults into three groups based on the sense of slip: 1. a fault where the relative movement (or slip) on the fault plane is approximately vertical is known as a dip-slip fault 2. where the slip is approximately horizontal, the fault is known as a transcurrent or strike-slip fault 3. an oblique-slip fault has non-zero components of both strike and dipslip. This table includes the definitions of classes used in the compilation of Quaternary faults, liquefaction features, and deformation (Crone and Wheeler, 2000). State (Jennings, 1975; Witkind, 1975; 1975; 1975; 1976; Menges and Pearthree, 1983 #2073), regional (Nakata and others, 1982), and National Howard and others, 1978) maps were compiled to show the location and relative timing of major faults. A geologic fault is a more-or-less planar (flat) fracture along which the rocks on either side have slid past each other. Any fault -bounded s liver in a fault zone is a . In order to maintain a current and relevant dataset, effective January 12, 2017, the USGS will maintain a limited number of metadata fields that characterize the Quaternary faults and folds of the United States. This movement may occur rapidly, in the form of an earthquake - or may occur slowly, in the form of creep. Synonym Discussion of fault. A fault is a fracture in rock where there has been movement and displacement. horse. Fault (geology) synonyms, Fault (geology) pronunciation, Fault (geology) translation, English dictionary definition of Fault (geology). Clearly the short seismic record will not image all the active faults that exist. Reverse fault definition, a fault in which the rock above the fault plane is displaced upward relative to the rock below the fault plane (opposed to normal fault). Many modern web browsers have an “auto complete” function that will fill in data fields based on the first several characters or digits from your browser profile. These data are compiled from thousands of journal articles, maps, theses, and other documents, as referenced herein. fault zone. Faulting occurs when shear stress on a rock overcomes the forces which hold it … fault zone. The fields having pull-down menus provide all available options. Faults may also displace slowly, by aseismic creep. The Number field will not find specific sections (a, b, c, etc. Tension stressOccurs at divergent plate boundaries. A fault gouge forms in the same … n 1. The plates are drifting away from each other. branching and reconnecting) faults. 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