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Brief Report for Wiggins uplift (Class B) No. 2660
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citation for this record: Crone, A.J., compiler, 1998, Fault number 2660, Wiggins uplift, in Quaternary fault and fold database of the United States: U.S. Geological Survey website, http://earthquakes.usgs.gov/regional/qfaults, accessed 11/24/2009 05:59 AM.
| Synopsis | This feature is classified as a Class B feature solely because of results reported in studies by Burnett and Schumm. These studies offer the only evidence of possible Quaternary uplift of the feature but the data are only considered to be suggestive of Quaternary deformation and are not compelling. Burnett and Schumm base their conclusion of Quaternary uplift on evidence derived from fluvial geomorphology, and they report supporting evidence of uplift from geodetic surveys. If Quaternary deformation is occurring on the Wiggins uplift, then it is not clear if the deformation is truly tectonic or if it could be related to other nontectonic processes such as salt tectonics or differential subsidence. Therefore, this feature is assigned to Class B in this compilation.
The inclusion of the Wiggins uplift in this compilation is based on geomorphic evidence of possible Quaternary uplift of the entire structure. This inferred uplift is not related to individual faults, so it is impossible to define and measure fault-specific parameters such as azimuth, length, and dip for the Wiggins uplift. |
| County(s) and State(s) | |
| AMS sheet(s) | Mobile |
| Physiographic province(s) | |
| Length (km) | 0 km. |
| Average strike | |
| Sense of movement | No data |
| Dip Direction | Unknown |
| Historic earthquake | |
| Most recent prehistoric deformation | Latest Quaternary (<15 ka) |
| Slip-rate category | Less than 0.2 mm/yr |
| Date and Compiler(s) | 1998 Anthony J. Crone, U.S. Geological Survey |
