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Q for P waves in the sediments of the Virginia Coastal Plain

September 28, 2010

The seismic quality factor Q for P waves in Atlantic Coastal Plain sediments is estimated using data from the 2004 U.S. Geological Survey seismic survey in eastern Virginia. The estimates are based on spectral ratios derived from reflections and sediment-guided P waves in Late Cretaceous and Tertiary sediments within the annular trough of the Late Eocene Chesapeake Bay impact structure. The estimates of Q for the frequency range of 10-150 Hz are from 75 to 100, with the best estimate of 80 based on multichannel stacking of spectral ratios from receivers in the offset range of 200-2000 m. This result is approximately a factor of 2 larger than the results previously reported for the Charleston, South Carolina, area, and it is approximately one-half of that recently reported for the Mississippi Embayment.

Citation Information

Publication Year 2008
Title Q for P waves in the sediments of the Virginia Coastal Plain
DOI 10.1785/0120070170
Authors M.C. Chapman, J.N. Beale, R. D. Catchings
Publication Type Article
Publication Subtype Journal Article
Series Title Bulletin of the Seismological Society of America
Series Number
Index ID 70000305
Record Source USGS Publications Warehouse
USGS Organization