Q for P waves in the sediments of the Virginia Coastal Plain
Bulletin of the Seismological Society of America
By: M.C. Chapman, J.N. Beale, and R. D. Catchings
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Abstract
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.
Suggested Citation
Chapman, M., Beale, J., and Catchings, R.D., 2008, Q for P waves in the sediments of the Virginia Coastal Plain: Bulletin of the Seismological Society of America, v. 98, no. 4, p. 2022-2032, https://doi.org/10.1785/0120070170.
ISSN: 1943-3573 (online)
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Q for P waves in the sediments of the Virginia Coastal Plain |
| Series title | Bulletin of the Seismological Society of America |
| DOI | 10.1785/0120070170 |
| Volume | 98 |
| Issue | 4 |
| Year Published | 2008 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Bulletin of the Seismological Society of America |
| First page | 2022 |
| Last page | 2032 |