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Shackleton, Nicholas J; Hall, Michael A; Pate, D (1995): Pliocene stable oxygen and carbon isotope record of benthic foraminifera from ODP Site 138-846 in the eastern equatorial Pacific [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.696450, Supplement to: Shackleton, NJ et al. (1995): Pliocene stable isotope stratigraphy of Site 864. In: Pisias, NG; Mayer, LA; Janecek, TR; Palmer-Julson, A; van Andel, TH (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 138, 337-355, https://doi.org/10.2973/odp.proc.sr.138.117.1995

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Abstract:
Oxygen and carbon isotope ratios were measured in benthic foraminifers from the entire Pliocene and latest Miocene sections of Site 846, a 180-m section, at a sampling interval of 10 cm. This provides a temporal resolution of about 2500 yr. The documented continuity of the record is excellent. Using the time scale that was developed on the basis of orbital tuning of GRAPE density records, we observed a fairly constant phase relationship between delta18O and variations in the obliquity of Earth's rotational axis. A new numbering scheme for Pliocene isotope stages is proposed.
This high-resolution delta18O record clarifies several interesting aspects of late Neogene climatic evolution, including a "glacial" event that may have caused the final Messinian desiccation of the Mediterranean Sea; one or more "interglacial" events that might have caused refilling of the Mediterranean; a well-resolved couplet of glacial events at about the age of the Sidujfall Subchron; interglacial extremes in the early part of the Gauss that could have resulted from either significant deglaciation on Antarctica or from warming of deep water; and a gradual ramp of increasingly extreme "glacial" events, starting at about the Kaena Subchron and culminating with delta18O stage 100 in the earliest Matuyama.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -3.095481 * Median Longitude: -90.818186 * South-bound Latitude: -3.096700 * West-bound Longitude: -90.818330 * North-bound Latitude: -3.094930 * East-bound Longitude: -90.817900
Date/Time Start: 1991-05-21T00:00:00 * Date/Time End: 1991-05-26T05:28:00
Event(s):
138-846 * Latitude: -3.095000 * Longitude: -90.818330 * Date/Time Start: 1991-05-21T00:00:00 * Date/Time End: 1991-05-26T00:00:00 * Elevation: -3296.0 m * Penetration: 871.5 m * Recovery: 821.61 m * Location: South Pacific Ocean * Campaign: Leg138 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 92 cores; 865.5 m cored; 0 m drilled; 94.9 % recovery
138-846B * Latitude: -3.094930 * Longitude: -90.817960 * Date/Time Start: 1991-05-21T17:00:00 * Date/Time End: 1991-05-24T06:08:00 * Elevation: -3295.8 m * Penetration: 422.4 m * Recovery: 373.44 m * Location: South Pacific Ocean * Campaign: Leg138 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 45 cores; 422.4 m cored; 0 m drilled; 88.4 % recovery
138-846C * Latitude: -3.096600 * Longitude: -90.818100 * Date/Time Start: 1991-05-24T06:08:00 * Date/Time End: 1991-05-25T02:27:00 * Elevation: -3295.8 m * Penetration: 192.5 m * Recovery: 193.1 m * Location: South Pacific Ocean * Campaign: Leg138 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 190 m cored; 0 m drilled; 101.6 % 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

  1. Shackleton, NJ; Hall, MA; Pate, D (1995): (Table 5) Depth and age series used for time-series analysis of ODP Site 138-846 in the eastern equatorial Pacific. https://doi.org/10.1594/PANGAEA.696449
  2. Shackleton, NJ; Hall, MA; Pate, D (1995): (Table 7) Interpolated time series of delta18O and delta13C data for ODP Site 138-846 as used for time series analyses. https://doi.org/10.1594/PANGAEA.696451
  3. Shackleton, NJ; Hall, MA; Pate, D (1995): (Table 2) Foraminiferal biostratigraphic datums in ODP Site 138-846 in the eastern equatorial Pacific. https://doi.org/10.1594/PANGAEA.696446
  4. Shackleton, NJ; Hall, MA; Pate, D (1995): (Table 1) Distribution of the coarse fraction at ODP Site 138-846 in the eastern equatorial Pacific. https://doi.org/10.1594/PANGAEA.696445
  5. Shackleton, NJ; Hall, MA; Pate, D (1995): (Table 3) Stable oxygen and carbon isotope ratios of benthic foraminifera from ODP Site 138-846 in the eastern equatorial Pacific. https://doi.org/10.1594/PANGAEA.696447