Southeastern Section - 54th Annual Meeting (March 17–18, 2005)

Paper No. 2
Presentation Time: 8:20 AM


DEEN, Thomas1, VAN ARSDALE, Roy1, COX, Randel1, WOOLERY, Edward2 and HARRIS, James3, (1)Earth Sciences, Univ of Memphis, Memphis, TN 38152, (2)Geological Sciences, Univ of Kentucky, Lexington, KY 40506, (3)Geology, Millsaps College, Jackson, MS 39210,

Previous investigations have revealed the N30E trending down-to-the-west Memphis and Ellendale faults in Memphis, Tennessee. In our current work, seismic reflection profiling using both deep P-wave and shallow S-wave techniques has revealed a third fault that we call the Shelby Farms fault near and parallel to the Ellendale fault. The Shelby Farms fault has been imaged to a depth of over 700 m and is a down-to-the-east normal fault that appears to have been reactivated as a reverse fault. Electrical conductivity surveys and bore holes acquired in Quaternary Wolf River alluvium indicate that both the Shelby Farms and Ellendale faults may have young displacement. A shallow S-wave seismic reflection line and an electrical conductivity survey acquired across the Memphis fault on the Wolf River flood plain also suggest Quaternary displacement.