Hernandez-Molina, F. J. et al. (2004): Miocene changes in bottom current regime recorded in continental rise sediments on the Pacific margin of the Antarctic Peninsula
Leg/Site/Hole:
Related Expeditions:
ODP 178
Identifier:
ID:
2005-056544
Type:
georefid
ID:
10.1029/2004GL020298
Type:
doi
Creator:
Name:
Hernandez-Molina, F. J.
Affiliation:
Universidad de Vigo, Departamento de Geociencias Marinas, Vigo, Spain
Role:
author
Name:
Larter, R. D.
Affiliation:
British Antarctic Survey, United Kingdom
Role:
author
Name:
Rebesco, M.
Affiliation:
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Italy
Role:
author
Name:
Maldonado, A.
Affiliation:
Instituto Andaluz de Ciencias de la Tierra, Spain
Role:
author
Identification:
Title:
Miocene changes in bottom current regime recorded in continental rise sediments on the Pacific margin of the Antarctic Peninsula
Year:
2004
Source:
Geophysical Research Letters
Publisher:
American Geophysical Union, Washington, DC, United States
Volume:
31
Issue:
22
Pages:
Abstract:
A Fossil Mounded Sedimentary Body (MB) has been identified in the Miocene sedimentary record on the central continental rise west of Adelaide Island, Antarctic Peninsula, using multichannel seismic reflection profiles. The MB has an elongated NE trend away from a group of seamounts, and it developed between two troughs. We interpret it as a patch drift plastered against the NE side of an obstacle. The MB's depositional patterns provide the first clear evidence of Early Miocene bottom current activity on the central rise, and they suggest that flow was towards the NE, probably as part of the Antarctic Circumpolar Current. (mod. journ. abstr.)
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:-65.0247 West:-73.4024 East:
-73.4024 South:-65.0247
Keywords: Stratigraphy; Applied geophysics; Adelaide Island; Antarctic Circumpolar Current; Antarctic Peninsula; Antarctica; Cenozoic; continental rise; contourite; Deep Sea Drilling Project; deep-sea environment; DSDP Site 325; geophysical methods; geophysical surveys; Leg 178; Leg 35; marine environment; Miocene; Neogene; Ocean Drilling Program; ocean floors; paleo-oceanography; paleocirculation; paleocurrents; seismic methods; Southern Ocean; surveys; Tertiary;
.