Sea-floor observations in the tongue of the ocean,Bahamas: An Argo/SeaMARC survey |
| |
| Authors: | William C Schwab Elazar Uchupi Robert D Ballard Thomas K Dettweiler |
| |
| Institution: | (1) U.S. Geological Survey, 02543 Woods Hole, Massachusetts, USA;(2) Woods Hole Oceanographic Institution, 02543 Woods Hole, Massachusetts, USA |
| |
| Abstract: | SeaMARC side-scan sonographs and Argo video and photographic data suggest that the recent sedimentary environment of the floor
of the Tongue of the Ocean is controlled by an interplay of turbidity current flow from the south, sediment spill-over from
the carbonate platform to the east (windward side), and rock falls from the west carbonate escarpment (lee side). The spill-over
forms a sandy sedimentary deposit that acts as a topographic obstruction to the turbidity current flow from the south. This
obstruction is expressed by the westward migration of a northwest-southeast oriented turbidity-current-cut channel. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
