Bottom Sediments of the Southern Gulf of Tonkin
NAVAL OCEANOGRAPHIC OFFICE NSTL STATION MS
Pagination or Media Count:
The Gulf of Tonkin is a shallow, crescent-shaped, subtropical basin. The southern Gulf of Tonkin is a NW-SE trending shallow embayment from 50 to 100 meters in depth. The deeper part is filled with poorly sorted sands and silts and is generally flanked by clays and silts. Sediment distribution is complex and is strongly influenced by current changes due to seasonal monsoons and varying sources of clastics. Cohesion of surface sediments increases from the shallow flanks into the deeper sandy trough. It also increases with depth on the flanks but apparently decreases in the basin. This is due to the silts and clays underlying the sands in the trough. Cores were taken for determination of type of sedimentation.
- Physical and Dynamic Oceanography
- Geology, Geochemistry and Mineralogy