Bühring, Christian; Sarnthein, Michael; Erlenkeuser, Helmut (2004): High-resolution isotope stratigraphy of ODP Site 184-1144 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.736633, Supplement to: Bühring, C et al. (2004): Toward a high-resolution stable isotope startigraphy of the last 1.1 m.y.: Site 1144, South China Sea. Proceedings of the Ocean Drilling Program, Scientific Results, 184, 1-29, https://doi.org/10.2973/odp.proc.sr.184.205.2004
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Abstract:
Narrow-spaced oxygen and carbon stable isotope records of the planktonic foraminifer Globigerinoides ruber (white) were obtained at Ocean Drilling Program Leg 184 Site 1144 to establish a first record of high-resolution Pleistocene monsoon variability on orbital to centennial timescales in the northern South China Sea. The new records extend from the Holocene back to marine isotope Stage (MIS) 34 (1.1 Ma). Sedimentation rates average 0.56 m/k.y. for the upper Matuyama and Brunhes Chrons and increase to 1.8 m/k.y. over the last 100 k.y. Stable isotope records thus reach an average time resolution of 270-500 yr for the last 375 k.y. and 570 yr further back to 700 ka. On the other hand, major stratigraphic gaps were identified for peak warm Stages 5.5, 7.5 (down to 8.4), 11.3, and 15.5. These gaps probably resulted from short-lasting events of contour current erosion induced by short-term enhanced incursions of Upper Pacific Deep Water near the end of glacial terminations. A further major hiatus extends from MIS 34 to MIS 73(?). The long-term variations in monsoon climate were largely dominated by the 100-k.y. eccentricity cycle. Planktonic delta13C values culminated near 30, 480, and 1035 ka and reflect an overlying 450-k.y. eccentricity cycle of minimum nutrient concentrations in the surface ocean. Superimposed on the orbital variations, millennial-scale cycles were prominent throughout the last 700 k.y., mainly controlled by short-term changes in monsoon-driven precipitation and freshwater input from mainland China. During the last 110 k.y. these short-lasting oscillations closely match the record of 1500-yr Dansgaard-Oeschger climate cycles in the Greenland ice core record.
Project(s):
Coverage:
Latitude: 20.053000 * Longitude: 117.419050
Date/Time Start: 1999-03-13T00:00:00 * Date/Time End: 1999-03-18T00:00:00
Event(s):
184-1144 * Latitude: 20.053000 * Longitude: 117.419050 * Date/Time Start: 1999-03-13T00:00:00 * Date/Time End: 1999-03-18T00:00:00 * Elevation: -2037.0 m * Penetration: 1108.5 m * Recovery: 1113 m * Location: South China Sea * Campaign: Leg184 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 118 cores; 1103.5 m cored; 5 m drilled; 100.9% recovery
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Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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Datasets listed in this publication series
- Bühring, C; Sarnthein, M; Erlenkeuser, H (2004): (Table T4) Biostratigraphic datums and age markers of ODP Site 184-1144. https://doi.org/10.1594/PANGAEA.736632
- Bühring, C; Sarnthein, M; Erlenkeuser, H (2004): (Table T3) Stable oxygen isotope ratios of Globigerinoides ruber, sedimentation rates and marine isotope stages of ODP Site 184-1144. https://doi.org/10.1594/PANGAEA.188906
- Bühring, C; Sarnthein, M; Erlenkeuser, H (2004): (Table T2) AMS 14C dates of ODP Site 184-1144. https://doi.org/10.1594/PANGAEA.194746
- Bühring, C; Sarnthein, M; Erlenkeuser, H (2004): (Appendix) Stable carbon and oxygen isotope record of Globigerinoides ruber from ODP Site 184-1144. https://doi.org/10.1594/PANGAEA.188870