noaa-ocean-2609
North Atlantic Plio-Pleistocene IRD and Isotope Data
McIntyre, K.; Delaney, M.L.; Ravelo, A.C.
North Atlantic Plio-Pleistocene IRD and Isotope Data
2001-07-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/2609
Investigator
K.
McIntyre
Investigator
M.L.
Delaney
Investigator
A.C.
Ravelo
earth science
paleoclimate
paleoceanography
delta 18O,Cibicidoides wuellerstorfi,null,per mil PDB,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
ice rafted debris,sediment,null,count per gram,null,paleoceanography,null,null,N,>212 microns
earth science
paleoclimate
paleoceanography
Neogloboquadrina pachyderma sinistral,sediment,null,percent,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
delta 13C,Cibicidoides wuellerstorfi,null,per mil PDB,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
age,null,null,radiocarbon year before present,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
Neogloboquadrina pachyderma dextral,sediment,null,percent,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
depth,null,null,centimeter,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleocean
oxygen isotopes
earth science
paleoclimate
paleocean
lithology
earth science
paleoclimate
paleocean
carbon isotopes
earth science
paleoclimate
paleocean
physical properties
earth science
paleoclimate
paleocean
population abundance
earth science
paleoclimate
paleocean
age control
geoscientificInformation
1936453 14C yr BP
1752848 14C yr BP
1936453 cal yr BP
1752848 cal yr BP
Complete
60.4
60.4
-23.63
-23.63
-1983
-1983
Ocean
Atlantic Ocean
North Atlantic Ocean
MIS70>LATITUDE 60.4>LONGITUDE -23.63
Ocean
Atlantic Ocean
North Atlantic Ocean
MIS64>LATITUDE 60.4>LONGITUDE -23.63
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
McIntyre, K., M.L. Delaney, and A.C. Ravelo. 2001. Millennial-scale climate change and oceanic processes in the late Pliocene and early Pleistocene. Paleoceanography 16(5):535-543.
We generated 200--500 year resolution records of oceanic processes in the North Atlantic (Ocean Drilling Program Site 983, 60°24'N, 23°38'W, 1983 meters water depth) for intervals in the latest Pliocene (1.86--1.93 Ma) and the earliest Pleistocene (1.75--1.83 Ma) in order to examine the linkages between millennial-scale variations in the ocean and background glacial-interglacial climate change. Within glacial intervals we find evidence for variations similar to those observed in the late Pleistocene. We find discrete ice-rafted debris (IRD) events that reoccur every 2--5 kyr. These events are preceded by a short cooling and accompanied by a reorganization of glacial deep waters. The timing of IRD events in the late Pliocene and early Pleistocene intervals is similar to that of Dansgaard-Oeschger cycles, but we find no IRD events comparable in timing to late Pleistocene Heinrich events. Although interglacial intervals are much more stable, we do find evidence for low-amplitude variations in deep water properties that reoccur every ~2 kyr within interglacial intervals. The similarity between our late Pliocene-early Pleistocene records and late Pleistocene records implies that the mechanism driving millennial-scale variations cannot be uniquely attributed to the strongly nonlinear linkage between climate and insolation and the large ice sheets of the late Pleistocene.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/mis64-tab.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/mis70-tab.txt
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/mcintyre2001
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11