Oba, Tadamichi; Shikama, Akiko; Okada, Hisatake (2000): Oxygen isotopic composition of G. ruber and G. sacculifer in ODP Hole 164-994C sediments [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.804034, Supplement to: Oba, T et al. (2000): Data Report: Oxygen isotopic record of the last 0.8 m.y. at the Blake Ridge, Hole 994C. In: Paull, CK; Matsumoto, R; Wallace, PJ; Dillon, WP (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 164, 1-3, https://doi.org/10.2973/odp.proc.sr.164.230.2000
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Abstract:
The purpose of this study is to establish the oxygen isotopic stratigraphy of the last 0.8 m.y. at Hole 994C, drilled during Ocean Drilling Program (ODP) Leg 164. Hole 994C (31º47.1'N, 75º32.8'W) is on the Blake Ridge off the coast of the southeast United States, at a water depth of 2799 m. The sediments from Hole 994C consist of light pale brown calcareous nannofossil clay containing relatively abundant and well-preserved foraminifers. Because the sediment on the Blake Ridge is composed of contourites derived from north by the Western Boundary Undercurrent beneath the Gulf Stream, the oxygen isotopic record is expected to be a mixture of the indigenous and reworked components. However, normal oxygen isotopic curves since the last 20 k.y. have already been reported from the Blake Ridge (Keigwin and Jones, 1989 doi:10.1016/0198-0149(89)90032-0; Haskell et al., 1991, doi:10.1029/90PA01939). The oxygen isotopic data obtained through this study is also correlatable to the standard oxygen isotopic stratigraphy, although some abnormality exists in certain intervals.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 31.785700 * Longitude: -75.545900
Date/Time Start: 1995-11-08T12:45:00 * Date/Time End: 1995-11-15T01:10:00
Event(s):
164-994C * Latitude: 31.785700 * Longitude: -75.545900 * Date/Time Start: 1995-11-08T12:45:00 * Date/Time End: 1995-11-15T01:10:00 * Elevation: -2799.1 m * Penetration: 703.5 m * Recovery: 501.47 m * Location: South Atlantic Ocean * Campaign: Leg164 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 84 cores; 703.5 m cored; 0 m drilled; 71.3 % recovery
Comment:
Specimens of Globigerinoides sacculifer and Globigerinoides ruber larger than 250 µm size were analyzed.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Oba, T; Shikama, A; Okada, H (2000): (Table 1) Stable oxygen isotope ratios of Globigerinoides ruber from ODP Hole 164-994C sediments. https://doi.org/10.1594/PANGAEA.804032
- Oba, T; Shikama, A; Okada, H (2000): (Table 2) Stable oxygen isotope ratios of Globigerinoides sacculifer from ODP Hole 164-994C sediments. https://doi.org/10.1594/PANGAEA.804033