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North Atlantic Pleistocene Isotope Records Entry ID: NOAA_NCDC_PALEO_2004-020 |
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Summary
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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. |
Related URL
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Link:
GET DATA
Description: Access to data files Link: VIEW RELATED INFORMATION Description: Access to documentation |
Geographic Coverage
| N: 67.0 | S: -5.0 | E: 18.0 | W: -100.0 |
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Data Set Citation
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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
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Paleo Start Date:
3 Ma
Paleo Stop Date: 0 Ma Chrono Unit: Chrono Unit: |
Location Keywords
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OCEAN
> ATLANTIC OCEAN
> NORTH ATLANTIC OCEAN
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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
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GEOSCIENTIFIC INFORMATION
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Project
| PAGES >Past Global Changes, IGBP [Information] |
Keywords
| d18O |
| Isotope |
| Oxygen isotopes |
| cibicidoides |
Data Set Progress
| COMPLETE |
Originating Center
| NOAA/NCDC |
Data Center
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World Data Center for Paleoclimatology, Boulder
[Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/
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Distribution
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Distribution_Media:
ftp
Distribution_Format: text Fees: none |
Personnel
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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.
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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