Okazaki, Y. et al. (2012): Ventilation changes in the western North Pacific since the last glacial period

Leg/Site/Hole:
ODP 145
ODP 145 887
Identifier:
2013-010057
georefid
Creator:
Okazaki, Y.
Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
author
Sagawa, T.
Ehime University, Japan
author
Asahi, H.
University of Tokyo, Japan
author
Horikawa, K.
University of Toyama, Japan
author
Onodera, J.
author
Identification:
Ventilation changes in the western North Pacific since the last glacial period
2012
Climate of the Past
Copernicus, Katlenburg-Lindau, International
8
1
17-24
We reconstructed the ventilation record of deep water at 2100 m depth in the mid-latitude western North Pacific over the past 25 kyr from radiocarbon measurements of coexisting planktic and benthic foraminiferal shells in sediment with a high sedimentation rate. The (super 14) C data on fragile and robust planktic foraminiferal shells were concordant with each other, ensuring high quality of the reconstructed ventilation record. The radiocarbon activity changes were consistent with the atmospheric record, suggesting that no massive mixing of old carbon from the abyssal reservoir occurred throughout the glacial to deglacial periods.
English
Serial
Coverage:Geographic coordinates:
North:54.2155
West:-148.2647East: 141.4912
South:36.0412
Quaternary geology; absolute age; Atlantic meridional overturning circulation; atmospheric transport; benthic taxa; Buliminacea; C-14; carbon; carbon dioxide; climate change; cores; deglaciation; East Pacific; Foraminifera; Globigerina; Globigerina bulloides; Globigerinacea; Globigerinidae; Globorotalia; Globorotalia inflata; Globorotaliidae; Invertebrata; isotope ratios; isotopes; last glacial maximum; Leg 145; marine environment; microfossils; North Pacific; Northeast Pacific; Northwest Pacific; O-18/O-16; Ocean Drilling Program; ODP Site 887; oxygen; Pacific Ocean; paleocirculation; paleocurrents; paleotemperature; planktonic taxa; Protista; radioactive isotopes; Rotaliina; sedimentation; sedimentation rates; sediments; stable isotopes; submarine environment; transport; Uvigerina; Uvigerinidae; ventilation; West Pacific;
.