Joseph, Leah H; Rea, David K; van der Pluijm, Ben A; Gleason, James D (2002): Sedimentology and Lead and Strontium isotope ratios of Miocene sediments from the Kerguelen Plateau [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.713614, Supplement to: Joseph, LH et al. (2002): Antarctic environmental variability since the late Miocene: ODP Site 745, the East Kerguelen sediment drift. Earth and Planetary Science Letters, 201(1), 127-142, https://doi.org/10.1016/S0012-821X(02)00661-1
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Abstract:
Characterization of sediment from Ocean Drilling Program Site 745, representing the East Kerguelen Ridge sediment drift, addresses important issues surrounding the timing of Miocene to present East Antarctic ice sheet stability and oceanic environmental change. Our results show three periods of greatly enhanced accumulation of Antarctic-derived sediment, at 6.4-5.9 Ma, 4.9-4.4 Ma and 1.1-0.8 Ma, potentially indicative of warmer, less stable ice sheets at these times. Conversely, the accumulation of Antarctic-derived material is comparatively less during the middle of the Pliocene warm epoch (4.8-3.2 Ma). The deep flow forming the Kerguelen drift was stronger during the latest Miocene and earliest Pliocene and has decreased in intensity continuously since then.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -59.595000 * Longitude: 85.854200
Date/Time Start: 1988-02-08T00:00:00 * Date/Time End: 1988-02-10T17:15:00
Event(s):
119-745 * Latitude: -59.595000 * Longitude: 85.854200 * Date/Time Start: 1988-02-08T00:00:00 * Date/Time End: 1988-02-10T00:00:00 * Elevation: -4093.0 m * Penetration: 225.5 m * Recovery: 230.6 m * Location: Indian Ocean * Campaign: Leg119 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 25 cores; 225 m cored; 0 m drilled; 102.5% recovery
119-745B * Latitude: -59.595000 * Longitude: 85.854200 * Date/Time Start: 1988-02-09T15:30:00 * Date/Time End: 1988-02-10T17:15:00 * Elevation: -4093.0 m * Penetration: 215 m * Recovery: 220.72 m * Location: Indian Ocean * Campaign: Leg119 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores; 215 m cored; 0 m drilled; 102.7 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Joseph, LH; Rea, DK; van der Pluijm, BA et al. (2002): (Table 1) Age datums of ODP Site 119-745. https://doi.org/10.1594/PANGAEA.713605
- Joseph, LH; Rea, DK; van der Pluijm, BA et al. (2002): (Table 2) Pb and Sr isotopic composition of sediments from ODP Hole 119-745B. https://doi.org/10.1594/PANGAEA.713613
- Joseph, LH; Rea, DK; van der Pluijm, BA et al. (2002): (Table 2) Sediment analyses of ODP Hole 119-745B. https://doi.org/10.1594/PANGAEA.713606