Siesser, William G (2001): Age datums, and abundance of Discoaster brouweri and Coccolithus pelagicus in ODP Site 180-1115 sediments [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.787036, Supplement to: Siesser, WG (2001): Pliocene paleoclimatology at ODP Site 1115, Solomon Sea (southwestern Pacific Ocean), based on calcareous nannofossils. In: Huchon, P; Taylor, B; Klaus, A (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 180, 1-15, https://doi.org/10.2973/odp.proc.sr.180.154.2001
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Abstract:
The relative abundance of warm-water Discoaster brouweri vs. cool-water Coccolithus pelagicus provides a useful proxy for interpreting Pliocene surface water temperature trends at Ocean Drilling Program Site 1115 (Solomon Sea). Surface waters were mostly warm during the early Pliocene with a slightly cooler interval centered on 4.5 Ma. A more pronounced cool interval occurred at ~3.2 Ma. The early and mid-Pliocene cool periods may reflect Antarctic glacial growth. A mid-Pliocene warm interval occurred from ~3.1 to 2.8 Ma. Temperature began to decline beginning ~2.7 Ma, marking the onset of Northern Hemisphere glaciation. This long-term decline in surface water temperature is interrupted by a brief warming event at ~2.3 Ma.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -9.189728 * Median Longitude: 151.573890 * South-bound Latitude: -9.189750 * West-bound Longitude: 151.573700 * North-bound Latitude: -9.189700 * East-bound Longitude: 151.573960
Date/Time Start: 1998-07-16T00:00:00 * Date/Time End: 1998-07-22T22:30:00
Event(s):
180-1115 * Latitude: -9.189750 * Longitude: 151.573950 * Date/Time Start: 1998-07-16T00:00:00 * Date/Time End: 1998-07-22T00:00:00 * Elevation: -1149.0 m * Penetration: 1100 m * Recovery: 582.9 m * Location: Solomon Sea * Campaign: Leg180 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 86 cores; 816.8 m cored; 283.2 m drilled; 71.4% 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
- Siesser, WG (2001): (Table T1) Nannofossil, foraminifer, magnetochron and 40Ar/39Ar datums of ODP Site 180-1115. https://doi.org/10.1594/PANGAEA.787034
- Siesser, WG (2001): (Appendix) Abundance of Discoaster brouweri and Coccolithus pelagicus in ODP Site 180-1115 sediments. https://doi.org/10.1594/PANGAEA.787035