Oppo, Delia W; McManus, Jerry F; Cullen, James L (2006): Planktonic foraminifera and stable isotope record of ODP Site 162-980 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.742858, Supplement to: Oppo, DW et al. (2006): Evolution and demise of the Last Interglacial warmth in the subpolar North Atlantic. Quaternary Science Reviews, 25(23-24), 3268-3277, https://doi.org/10.1016/j.quascirev.2006.07.006
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Abstract:
Detailed faunal, isotopic, and lithic marine records provide new insight into the stability and climate progression of the last interglacial period, Marine Isotope Stage (MIS) 5, which peaked approximately 125,000 years ago. In the eastern subpolar North Atlantic, at the latitude of Ireland, interglacial warmth of the ice volume minimum of substage 5e (MIS 5e) lasted ~10,000 years (10 ka) and its demise occurred in two cooling steps. The first cooling step marked the end of the climatic optimum, which was 2-3 ka long. Minor ice rafting accompanied each cooling step; the second, larger, step encompassing cold events C26 and C25 was previously identified in the northwestern Atlantic. Approximately 4 °C of cooling occurred between peak interglacial warmth and C25, and the region experienced an additional temporary cooling of at least 1-2 °C during C24, a cooling event associated with widespread ice rafting in the North Atlantic. Beginning with C24, MIS 5 was characterized by oscillations of at least 1-2 °C superimposed on a generally cool baseline. The results of this study imply that the marine climatic optimum of the last interglacial was shorter than previously thought. The finding that the eastern subpolar North Atlantic cooled significantly before C24 reconciles terrestrial evidence for progressive climate deterioration at similar and lower latitudes with marine conditions. Our results also demonstrate a close association between modest ice rafting, cooling, and deep ocean circulation even during the peak of MIS 5e and in the earliest stages of ice growth.
Other version:
Oppo, Delia W; McManus, Jerry F; Cullen, James L (2007): Subpolar North Atlantic ODP980 MIS5 sediment data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2007-030. NOAA/NCDC Paleoclimatology Program, Boulder CO, USA, ftp://ftp.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/oppo2006/oppo2006.txt
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 55.484933 * Longitude: -14.702267
Date/Time Start: 1995-07-10T00:00:00 * Date/Time End: 1995-07-11T00:00:00
Event(s):
162-980 * Latitude: 55.484933 * Longitude: -14.702267 * Date/Time Start: 1995-07-10T00:00:00 * Date/Time End: 1995-07-11T00:00:00 * Elevation: -2180.0 m * Penetration: 353.7 m * Recovery: 366.7 m * Location: South Atlantic Ocean * Campaign: Leg162 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 39 cores; 353.7 m cored; 0 m drilled; 103.7% recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
5 datasets
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Datasets listed in this publication series
- Oppo, DW; McManus, JF; Cullen, JL (2006): (Table 1) Stable oxygen isotope ratios of Neogloboquadrina pachyderma of ODP Site 162-980. https://doi.org/10.1594/PANGAEA.742851
- Oppo, DW; McManus, JF; Cullen, JL (2006): (Table 3) Ice rafted detritus of ODP Site 162-980. https://doi.org/10.1594/PANGAEA.742853
- Oppo, DW; McManus, JF; Cullen, JL (2006): (Table 2) Stable oxygen and carbon isotope ratios of Cibicidoides wuellerstorfi of ODP Site 162-980. https://doi.org/10.1594/PANGAEA.742852
- Oppo, DW; McManus, JF; Cullen, JL (2006): (Table 4) Relative abundance of planktonic foraminifera in ODP Site 162-980. https://doi.org/10.1594/PANGAEA.742854
- Oppo, DW; McManus, JF; Cullen, JL (2006): (Table 5) Sea surface temperture reconstruction for ODP Site 162-980. https://doi.org/10.1594/PANGAEA.742857