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Brief Report for Monroe uplift (Class B) No. 1025
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citation for this record: Crone, A.J., compiler, 1998, Fault number 1025, Monroe 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 06:28 AM.
| Synopsis | This feature is classified as a Class B feature because of the results of a study described by Burnett and Schumm (1983 #2815) and Schumm (1986 #2817), which suggests the possibility of Quaternary deformation. However, the available evidence is not compelling. The evidence of possible Quaternary uplift is based on an analysis of the fluvial geomorphology of rivers and streams that cross the Monroe uplift. Burnett and Schumm (1983 #2815) also briefly describe corroborative evidence of uplift from repeat geodetic surveys. Furthermore, if Quaternary deformation is occurring, it is not clear if the deformation is truly tectonic in origin or if it could be related to non-tectonic processes such as salt tectonics or differential subsidence.
The inclusion of the Monroe 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 Monroe uplift. |
| County(s) and State(s) | |
| AMS sheet(s) | Greenwood |
| 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 |
