North Atlantic Pleistocene Isotope Records
Entry ID: NOAA_NCDC_PALEO_2004-020

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Summary
Abstract: Geochemical profiles from the North Atlantic Ocean suggest that the vertical
d13C structure of the water column at intermediate depths did not change
significantly between glacial and interglacial time over much of the
Pleistocene, despite large changes in ice volume and iceberg delivery from
nearby landmasses. The most anomalous d13C profiles are from the extreme
interglaciations of the late Pleistocene. This compilation of data suggests
that, unlike today (an extreme interglaciation), the two primary sources of
northern deep water, Norwegian-Greenland Sea and Labrador Sea/subpolar North
Atlantic, had different characteristic d13C values over most of the
Pleistocene. We speculate that the current open sea ice conditions in the
Norwegian-Greenland Sea are a relatively rare occurrence and that the
high-d13C deep water that forms in this region today is geologically unusual.
If northern source deep waters can have highly variable d13C, then this
likelihood must be considered when inferring past circulation changes from
benthic d13Crecords.

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Link: GET DATA
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Link: VIEW RELATED INFORMATION
Description: Access to documentation


Geographic Coverage
 N: 67.0 S: -5.0  E: 18.0  W: -100.0

Data Set Citation
Dataset Originator/Creator: Maureen E. Raymo
Dataset Title: North Atlantic Pleistocene Isotope Records
Dataset Series Name: IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2004-020
Dataset Release Date: 8/2004
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: 2004-020
Other Citation Details: NOAA/NCDC Paleoclimatology Program
Online Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/paleocean/by_contributor/ray...


Paleo_Temporal_Coverage
Paleo Start Date: 3 Ma
Paleo Stop Date: 0 Ma
Chrono Unit:
Chrono Unit:


Location Keywords
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN


Science Keywords
OCEANS >OCEAN CHEMISTRY >STABLE ISOTOPES    [Definition]
PALEOCLIMATE >LAND RECORDS >ISOTOPES    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >OXYGEN ISOTOPES    [Definition]
BIOLOGICAL CLASSIFICATION >PROTISTS >AMOEBOIDS >FORAMINIFERS    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION


Project
PAGES >Past Global Changes, IGBP    [Information]


Keywords
d18O
Isotope
Oxygen isotopes
cibicidoides


Data Set Progress
COMPLETE


Originating Center
NOAA/NCDC


Data Center
World Data Center for Paleoclimatology, Boulder    [Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/

Data Center Personnel
Name: WDC/PALEOCLIMATOLOGY, BOULDER
Phone: +1 (303) 497-6160
Fax: +1 (303) 497-6513
Email: paleo at noaa.gov
Contact Address:
World Data Center for Paleoclimatology
NOAA/NCDC Code E/GCx3
325 Broadway
City: Boulder
Province or State: CO
Postal Code: 80303
Country: USA



Distribution
Distribution_Media: ftp
Distribution_Format: text
Fees: none


Personnel
MAUREEN E. RAYMO
Role: INVESTIGATOR
Phone: 617-353-4009
Fax: 617-353-3290
Email: raymo at bu.edu
Contact Address:
Dept. of Earth Sciences
Boston University
685 Commonwealth Avenue
City: Boston
Province or State: MA
Postal Code: 02215
Country: USA


Publications/References
Raymo, M.E., D.W. Oppo, B.P. Flower, D.A. Hodell, J.F. McManus, K.A. Venz, K.F. Kleiven, and K. McIntyre. 2004. Stability of North Atlantic water masses in face of pronounced climate variability during the Pleistocene. Paleoceanography, Vol. 19, PA2008, doi:10.1029/2003PA000921.

Flower, B.P., D.W. Oppo, J.F. McManus, K. Venz, D. Hodell, and J. Cullen. 2000. North Atlantic intermediate to deep water circulation and chemical stratification during the past 1 Myr, Paleoceanography, 15, 388-403.

Kleiven, H., E. Jansen, W. Curry, D.A. Hodell, and K. Venz. 2003.
Atlantic Ocean thermohaline circulation changes on orbital to suborbital timescales during the mid-Pleistocene. Paleoceanography, 18, 10.1029/2001PA000629.

McIntyre, K., A.C. Ravelo, and M.L. Delaney. 1999. North Atlantic Intermediate Waters in the late Pliocene to early Pleistocene. Paleoceanography, 14, 324-335, 1999.

McManus, J.F., D.W. Oppo, and J. Cullen. 1999. A 0.5-million-year record of millennial-scale climate variability in the North Atlantic. Science, 283, 971-975.

Mix, A.C., J. Le, and N. J. Shackleton. 1995. Benthic foraminiferal stable isotope stratigraphy of Site 846; 0-1.8 Ma, Proceed. Ocean Drill. Prog., Sci. Res., 138, 839-854.

Oppo, D.W., J.F. McManus, and J.L. Cullen. 1998. Abrupt climate events 500,000 to 340,000 years ago; evidence from subpolar North Atlantic sediments. Science 279, 1335-1338.

Raymo, M.E., W.F. Ruddiman, J. Backman, B.M. Clement, and D.G. Martinson. 1989. Late Pliocene variation in Northern Hemisphere ice sheets and North Atlantic deep water circulation. Paleoceanography, 4, 413-446.

Raymo, M.E., K. Ganley, S. Carter, D. W. Oppo, and J. McManus. 1998.
High latitude climate instability in the Early Pleistocene. Nature, 392, 699-702.

Ruddiman, W.F., M.E. Raymo, D.G. Martinson, B.M. Clement, and J. Backman. 1989. Mid-Pleistocene evolution of Northern Hemisphere climate. Paleoceanography, 4, 353-412.

Shackleton, N. J, and M. A. Hall. 1984. Oxygen and carbon isotope stratigraphy of Deep Sea Drilling Project Hole 552A: Plio-Pleistocene glacial history. Initial Rep. of the Deep Sea Drill. Proj., 81, 599-610.

Shackleton, N.J., A. Berger, and W. Peltier. 1990. An alternative astronomical calibration of the lower Pleistocene timescale based on ODP Site 677. Trans. Roy. Soc. Edinburgh: Earth Sci., 81, 251-61.

Venz, K.A. and D.A. Hodell. 2002. New evidence for changes in Plio-Pleistocene deep water circulation from Southern Ocean ODP Leg 177 Site 1090, Palaeogeography, Palaeoclimatology, Palaeoecology 182, 197-220.

Venz, K.A., D.A. Hodell, C. Stanton, and D.A. Warnke. 1999. A 1.0 Myr record of glacial North Atlantic intermediate water variability from ODP Site 982 in the Northeast Atlantic. Paleoceanography 14, 42-52.

Creation and Review Dates
DIF Creation Date: 2006-12-20
Last DIF Revision Date: 2007-05-31

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