Oppo, Delia W; McManus, Jerry F; Cullen, James L (2003): Age determination and stable isotope record of ODP Hole 162-980B [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.816313, Supplement to: Oppo, DW et al. (2003): Palaeo-oceanography: Deepwater variability in the Holocene epoch. Nature, 422(6929), 277-277, https://doi.org/10.1038/422277b
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Abstract:
The conversion of surface water to deep water in the North Atlantic results in the release of heat from the ocean to the atmosphere, which may have amplified millennial-scale climate variability during glacial times (Broecker et al., 1990, doi:10.1029/PA005i004p00469) and could even have contributed to the past 11,700 years of relatively mild climate (known as the Holocene epoch) (Bond et al., 2001, doi:10.1126/science.1065680; Alley et al., 1997, doi:10.1130/0091-7613(1997)025<0483:HCIAPW>2.3.CO;2; Keigwin and Boyle, 2000, doi:10.1073/pnas.97.4.1343). Here we investigate changes in the carbon-isotope composition of benthic foraminifera throughout the Holocene and find that deep-water production varied on a centennial-millennial timescale. These variations may be linked to surface and atmospheric events that hint at a contribution to climate change over this period.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 55.485000 * Longitude: -14.702300
Date/Time Start: 1995-07-11T01:40:00 * Date/Time End: 1995-07-11T13:00:00
Event(s):
162-980B * Latitude: 55.485000 * Longitude: -14.702300 * Date/Time Start: 1995-07-11T01:40:00 * Date/Time End: 1995-07-11T13:00:00 * Elevation: -2179.0 m * Penetration: 118.2 m * Recovery: 122.48 m * Location: South Atlantic Ocean * Campaign: Leg162 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 118.2 m cored; 0 m drilled; 103.6 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Oppo, DW; McManus, JF; Cullen, JL (2003): (Table S1) Age determination of ODP Hole 162-980B. https://doi.org/10.1594/PANGAEA.816310
- Oppo, DW; McManus, JF; Cullen, JL (2003): (Table S2) Stable carbon and oxygen isotope record of Cibicidoides wuellerstorfi of ODP Hole 162-980B. https://doi.org/10.1594/PANGAEA.816312