Heck, Philipp R; Anselmetti, Flavio S; Isern, Alexandra R (2004): Major nannofossils, carbon and oxygen isotopes and carbon composition of ODP leg 194 site survey gravity cores [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.778715, Supplement to: Heck, PR et al. (2004): Data report: Late Pleistocene and Holocene sedimentation on the Marion Plateau: Data from precruise ODP Leg 194 site survey gravity cores. In: Anselmetti, FS; Isern, AR; Blum, P; Betzler, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 194, 1-13, https://doi.org/10.2973/odp.proc.sr.194.006.2004
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Abstract:
Biostratigraphic, sedimentologic, and geochemical analyses of hemipelagic periplatform sediments from shallow gravity cores taken during the Ocean Drilling Program Leg 194 site survey reveal that, despite the strong currents and almost infilled intraplatform bathymetric depressions, recent sedimentation at the location of the Leg 194 drill sites recorded glacial-interglacial cycles. Sediment analyses included determination of sediment type, carbonate content, bulk stable oxygen isotope composition, and calcareous nannofossil zones. Glacial periods, identified by elevated bulk d18O, are characterized by darker sediment color, coarser grain size, and lower carbonate content, whereas interglacial periods yield lighter-colored, finer, and carbonate-rich sediments. These data from the shallowmost few meters of Marion Plateau sediments complement the subsurface information of Leg 194 holes, in which the top few meters have not been analyzed in such a high-resolution fashion. In addition, these gravity cores are more likely to have recovered the sediments closest to the sediment/water interface as compared to the hydraulic piston cores collected during Leg 194.
Coverage:
Median Latitude: -20.931975 * Median Longitude: 152.663160 * South-bound Latitude: -21.076100 * West-bound Longitude: 152.274300 * North-bound Latitude: -20.792400 * East-bound Longitude: 153.066100
Date/Time Start: 1999-04-01T00:00:00 * Date/Time End: 1999-05-30T00:00:00
Event(s):
GC-03 (CS-08/1197) * Latitude: -21.076100 * Longitude: 153.066100 * Date/Time Start: 1999-04-01T00:00:00 * Date/Time End: 1999-05-30T00:00:00 * Elevation: -343.0 m * Recovery: 0.84 m * Location: Marion Plateau * Method/Device: Gravity corer (GC) * Comment: ODP Leg 194 site survey (cruise AGSO 0209, FR03/99) gravity core
GC-06 (CS-05/1198) * Latitude: -20.950300 * Longitude: 152.716700 * Date/Time Start: 1999-04-01T00:00:00 * Date/Time End: 1999-05-30T00:00:00 * Elevation: -327.0 m * Recovery: 1.48 m * Location: Marion Plateau * Method/Device: Gravity corer (GC) * Comment: ODP Leg 194 site survey (cruise AGSO 0209, FR03/99) gravity core
GC-08 (CS-09) * Latitude: -20.910700 * Longitude: 152.584100 * Date/Time Start: 1999-04-01T00:00:00 * Date/Time End: 1999-05-30T00:00:00 * Elevation: -325.0 m * Recovery: 2.73 m * Location: Marion Plateau * Method/Device: Gravity corer (GC) * Comment: ODP Leg 194 site survey (cruise AGSO 0209, FR03/99) gravity core
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Heck, PR; Anselmetti, FS; Isern, AR (2004): (Table 3) Stable oxygen and carbon isotopes and carbon composition of four Leg 194 site survey gravity cores. https://doi.org/10.1594/PANGAEA.778714
- Heck, PR; Anselmetti, FS; Isern, AR (2004): (Table 2) Major nannofossil abundances in three Leg 194 site survey gravity cores. https://doi.org/10.1594/PANGAEA.778713