SIDE-SCAN AND ACOUSTIC SUBBOTTOM CHARACTERIZATION OF THE SEA-FLOOR NEAR THE DRY TORTUGAS, FLORIDA

Authors
WEVER TF FIEDLER HM FECHNER G ABEGG F STENDER IH
Citation
Tf. Wever et al., SIDE-SCAN AND ACOUSTIC SUBBOTTOM CHARACTERIZATION OF THE SEA-FLOOR NEAR THE DRY TORTUGAS, FLORIDA, Geo-marine letters, 17(4), 1997, pp. 246-252
Citations number
12
Journal title
Geo-marine letters
ISSN journal
02760460 → ACNP
Volume
17
Issue
4
Year of publication
1997
Pages
246 - 252
Database
ISI
SICI code
0276-0460(1997)17:4<246:SAASCO>2.0.ZU;2-H
Abstract
Between 2 and 6 February, 1995, a 25 km(2) area at the Dry Tortugas (F lorida Keys) was surveyed with a 100 kHz side-scan sonar system and 3. 5-kHz subbottom profiler. The side-scan system revealed a pattern of a lternating high and low backscatter. The subbottom profiler showed are as with no acoustic penetration between sediment troughs. The combinat ion of both methods allowed delineation of the boundaries in high-back scatter regions, and sediment samples allowed correlations between hig h backscatter and coarser-grained sediments.