Su, Xin; Xu, Yulin; Tu, Quiang (2004): Depth and ages of calcareous nannofossil events from ODP Leg 184 sites, South China Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.784651, Supplement to: Su, X et al. (2004): Early Oligocene-Pleistocene calcareous nannofossil biostratigraphy of the northern South China Sea (Leg 184, Sites 1146-1148). In: Prell, WL; Wang, P; Blum, P; Rea, DK; Clemens, SC (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 184, 1-24, https://doi.org/10.2973/odp.proc.sr.184.224.2004
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Abstract:
Sites 1146 and 1148 of Ocean Drilling Program Leg 184, in the South China Sea (SCS), comprise long sediment sections with a time span from the early Oligocene to the Pleistocene. Calcareous nannofossils from these two sites were biostratigraphically studied. We recognized 53 early Oligocene to Pleistocene events that are commonly found in open sea areas and can therefore be correlated within a large geographic range. This study also revealed that a few conventionally used nannofossil events are not suitable for the SCS, and further evaluation is needed. The lower Oligocene to Pleistocene sequences recovered at Sites 1146 and 1148 were subdivided into the 4 Paleogene zones and 21 Neogene to Quaternary zones of Martini, in correlation with the Paleogene to Quaternary zones of Okada and Bukry. This provided a lower Oligocene through Pleistocene nannofossil biostratigraphic framework. A significant unconformity was recognized in the Oligocene-Miocene transition, in which the upper part of Oligocene Zone NP25 and lower part of Miocene Zone NN1 were missing. The time span of the unconformity was estimated to be ~1 m.y. Very high sedimentation rates were seen in the Oligocene, relative low values were seen in the Miocene, and the highest values were seen in the Pleistocene, which was believed to be the result of tectonic and sedimentation history of the SCS.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 19.146175 * Median Longitude: 116.416525 * South-bound Latitude: 18.835150 * West-bound Longitude: 116.272917 * North-bound Latitude: 19.456700 * East-bound Longitude: 116.565650
Date/Time Start: 1999-03-21T00:00:00 * Date/Time End: 1999-04-10T00:00:00
Event(s):
184-1146 * Latitude: 19.456700 * Longitude: 116.272917 * Date/Time Start: 1999-03-21T00:00:00 * Date/Time End: 1999-03-29T00:00:00 * Elevation: -2091.5 m * Penetration: 1455.6 m * Recovery: 1451.7 m * Location: South China Sea * Campaign: Leg184 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 153 cores; 1450.6 m cored; 5 m drilled; 100.1% recovery
184-1147 * Latitude: 18.835150 * Longitude: 116.554617 * Date/Time Start: 1999-03-29T00:00:00 * Date/Time End: 1999-03-30T00:00:00 * Elevation: -3245.5 m * Penetration: 245.5 m * Recovery: 243.8 m * Location: South China Sea * Campaign: Leg184 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 27 cores; 245.5 m cored; 0 m drilled; 99.3% recovery
184-1148 * Latitude: 18.836150 * Longitude: 116.565650 * Date/Time Start: 1999-03-30T00:00:00 * Date/Time End: 1999-04-10T00:00:00 * Elevation: -3294.5 m * Penetration: 1557.2 m * Recovery: 996.5 m * Location: South China Sea * Campaign: Leg184 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 133 cores; 1204.6 m cored; 352.6 m drilled; 82.7% 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
- Su, X; Xu, Y; Tu, Q (2004): (Table T3) Depths and ages of calcareous nannofossil events at ODP Site 184-1146. https://doi.org/10.1594/PANGAEA.784650
- Su, X; Xu, Y; Tu, Q (2004): (Table T2) Depths and ages of calcareous nannofossil events at ODP Sites 184-1147 and 184-1148. https://doi.org/10.1594/PANGAEA.784649