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Koç, Nalân; Labeyrie, Laurent D; Manthé, Sandrine; Flower, Benjamin P; Hodell, David A; Aksu, Ali E (2001): The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stage 9-8 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.678543, Supplement to: Koç, N et al. (2001): The last occurrence of Proboscia curvirostris in the North Atlantic marine isotope stages 9-8. Marine Micropaleontology, 41(1-2), 9-23, https://doi.org/10.1016/S0377-8398(00)00054-2

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Abstract:
Well-preserved diatoms are present in high sedimentation rate Pleistocene cores retrieved on Ocean Drilling Program (ODP) Legs 151, 152, 162 and IMAGES cruises of R/V Marion Dufresne from the North Atlantic. Investigation of the stratigraphic occurrence of diatom species shows that the youngest diatom event observed in the area is the last occurrence (LO) of Proboscia curvirostris (Jousé) Jordan and Priddle. P. curvirostris is a robust species that can easily be identified in the sediments, and therefore can be a practical biostratigraphic tool. We have mapped its areal distribution, and found that it stretches from 40°N to 80°N in the North Atlantic. Further, we have correlated the LO P. curvirostris to the oxygen isotope records of six cores to refine the age of this biostratigraphic event. The extinction of P. curvirostris is latitudinally diachronous through Marine Isotope Stages (MIS) 9 to 8 within the North Atlantic. This is closely related to the paleoceanography of the area. P. curvirostris first disappeared within interglacial MIS 9 (324 ka) from the northern areas that are most sensitive to climatic forcing, like the East Greenland current and the sea-ice margin. It survived in mid-North Atlantic until the conditions of the MIS 8 (glaciation) became too severe (260 ka). In the North Pacific at ODP Site 883 the LO P. curvirostris falls within MIS 8. The observed overlap in age between the North Atlantic and the North Pacific strongly suggests that the extinction of P. curvirostris is synchronous between these oceans.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 56.781366 * Median Longitude: -34.241898 * South-bound Latitude: 41.744500 * West-bound Longitude: -47.413200 * North-bound Latitude: 62.670000 * East-bound Longitude: -22.075333
Date/Time Start: 1993-11-13T09:14:00 * Date/Time End: 1995-07-22T09:29:00
Event(s):
152-919A * Latitude: 62.670000 * Longitude: -37.460200 * Date/Time Start: 1993-11-13T09:14:00 * Date/Time End: 1993-11-14T05:45:00 * Elevation: -2088.0 m * Penetration: 93.5 m * Recovery: 93.59 m * Location: Greenland Sea * Campaign: Leg152 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 93.5 m cored; 0 m drilled; 100.1 % recovery
162-983A * Latitude: 60.403300 * Longitude: -23.640600 * Date/Time Start: 1995-07-21T11:58:00 * Date/Time End: 1995-07-22T09:29:00 * Elevation: -1983.0 m * Penetration: 254.4 m * Recovery: 264.42 m * Location: North Atlantic Ocean * Campaign: Leg162 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 27 cores; 254.4 m cored; 0 m drilled; 103.9 % recovery
MD95-2014 (MD952014) * Latitude: 60.582167 * Longitude: -22.075333 * Date/Time: 1995-06-12T00:00:00 * Elevation: -2397.0 m * Recovery: 34 m * Location: Iceland * Campaign: MD101 (IMAGES I) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO) * Comment: XXIII Sections, OK; about 7 cm of sediment dropped on the deck when cutting between sections VII-VIII
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Koç, N; Labeyrie, LD; Manthé, S et al. (2001): (Appendix A) Abundances of Proboscia curvirostris and diatoms in sediments of ODP Hole 152-919A from the North Atlantic. https://doi.org/10.1594/PANGAEA.678535
  2. Koç, N; Labeyrie, LD; Manthé, S et al. (2001): (Appendix B) Stable oxygen isotope ratios of Neogloboquadrina pachyderma sinistral of ODP Hole 152-919A from the North Atlantic. https://doi.org/10.1594/PANGAEA.678540
  3. Koç, N; Labeyrie, LD; Manthé, S et al. (2001): (Appendix A) Abundances of Proboscia curvirostris and diatoms in sediments of ODP Hole 162-983A from the North Atlantic. https://doi.org/10.1594/PANGAEA.678536
  4. Koç, N; Labeyrie, LD; Manthé, S et al. (2001): (Appendix A) Abundances of Proboscia curvirostris and diatoms in sediment core MD95-2014 from the North Atlantic. https://doi.org/10.1594/PANGAEA.678537
  5. Koç, N; Labeyrie, LD; Manthé, S et al. (2001): (Table 2) Last occurrence of Proboscia curvirostris recorded in the North Atlantic sediments. https://doi.org/10.1594/PANGAEA.678541
  6. Koç, N; Labeyrie, LD; Manthé, S et al. (2001): (Appendix A) Abundances of Proboscia curvirostris and diatoms in sediment core MD95-2027 from the North Atlantic. https://doi.org/10.1594/PANGAEA.678538