Keigwin, Lloyd and Keller, Gerta (1984): Middle Oligocene cooling from Equatorial Pacific DSDP Site 77B

Leg/Site/Hole:
DSDP 9
DSDP 9 77
Identifier:
1984-009902
georefid
Creator:
Keigwin, Lloyd
Woods Hole Oceanogr. Inst., Woods Hole, MA, United States
author
Keller, Gerta
U. S. Geol. Surv., United States
author
Identification:
Middle Oligocene cooling from Equatorial Pacific DSDP Site 77B
1984
Geology (Boulder)
Geological Society of America (GSA), Boulder, CO, United States
12
1
16-19
Stable-isotope and quantitative planktonic foraminiferal studies. Lower abundance of inferred warm-water species and enrichment of (super 18) O and (super 12) C in foraminiferal tests during the interval 29 to 32 m.y. ago suggest cooler climate, lowered sea level, and significant volume of continental ice compared to earlier and later times in the Oligocene.--Modified journal abstract.
English
Serial
Coverage:Geographic coordinates:
North:0.2854
West:-133.1342East: -133.1342
South:0.2854
Stratigraphy; biochemistry; biostratigraphy; C-13/C-12; carbon; Cenozoic; cooling; Deep Sea Drilling Project; Deep Site Drilling Project; DSDP Site 77; Equatorial Pacific; Foraminifera; Invertebrata; isotopes; Leg 9; marine sediments; microfossils; middle Oligocene; O-18/O-16; Oligocene; oxygen; Pacific Ocean; paleoclimatology; paleoecology; Paleogene; planktonic taxa; Protista; sediments; stable isotopes; stratigraphy; temperature; Tertiary; tests;
.