Neotectonic structure in the central new madrid seismic zone: Evidence from multimode seismic-reflection data
Approximately 14.5 km of conventional P-wave and 2.2 km of horizontally polarized shear-wave seismic-reflection data acquired in the Kentucky Bend area of the central New Madrid Seismic Zone provide evidence of extensive neotectonic near-surface structure. The style and geometry of the deformation are consistent with documented historical geomorphic features, contemporary geomorphic features, and contemporary seismicity. The data image high-angle transpressional faults that strike between N30??W and N50??W. The fault planes exhibit apparent northeast and southwest dips. The opposing high-angle planes represent secondary splay or imbricate faults that responded to torsional bending of a lower-angle master fault.
Citation Information
Publication Year | 1999 |
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Title | Neotectonic structure in the central new madrid seismic zone: Evidence from multimode seismic-reflection data |
Authors | E.W. Woolery, R.L. Street, Z. Wang, J. B. Harris, J. McIntyre |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Seismological Research Letters |
Index ID | 70021801 |
Record Source | USGS Publications Warehouse |