Angstadt, D. M. et al. (1983): Deep-sea erosional unconformity in the southeastern Gulf of Mexico

Leg/Site/Hole:
DSDP 10
DSDP 77
DSDP 77 540
DSDP 10 97
Identifier:
1983-041924
georefid
Creator:
Angstadt, D. M.
Univ. Tex. Inst. Geophys., Austin, TX, United States
author
Austin, J. A., Jr.
author
Buffler, R. T.
author
Identification:
Deep-sea erosional unconformity in the southeastern Gulf of Mexico
1983
Geology (Boulder)
Geological Society of America (GSA), Boulder, CO, United States
11
4
215-218
Multichannel seismic data and DSDP well information. Corresponding to a 44 to 38.5 m.y. B.P. hiatus, the unconformity was apparently produced by the bottom effects of wind-driven surface currents (paleo-Florida Current) and gravitational mass movements capable of scouring the slope. Intensification of these sedimentary processes may have been related to global cooling and a reported drop in sea level in the late Eocene, but it may also have been part of a complex global response to a postulated Paleogene meteorite impact.--Modified journal abstract.
English
Serial
Coverage:Geographic coordinates:
North:24.0000
West:-85.0000East: -83.0000
South:22.5000
Stratigraphy; Atlantic Ocean; Cenozoic; cores; currents; cyclic processes; Deep Sea Drilling Project; deep-sea sedimentation; DSDP Site 540; DSDP Site 97; Eocene; erosional unconformities; geophysical methods; geophysical surveys; Gulf of Mexico; impacts; IPOD; Leg 10; Leg 77; marine sedimentation; middle Eocene; multichannel filters; North Atlantic; paleo-oceanography; paleocirculation; paleoclimatology; paleocurrents; Paleogene; processes; sedimentation; seismic methods; stratigraphy; surveys; Tertiary; turbidity currents; unconformities; upper Eocene;
.