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Akimoto, Kazumi (1994): Cenozoic benthic foraminifers from ODP Leg 134 holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.788066, Supplement to: Akimoto, K (1994): Cenozoic benthic foraminiferal biostratigraphy, paleobathymetry, paleoenvironments and paleoceanography of the New Hebrides Island Arc and North d'Entrecasteaux Ridge Area. In: Green, HG; Collot, J-Y; Stokking, LB; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 134, 265-291, https://doi.org/10.2973/odp.proc.sr.134.011.1994

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Abstract:
This paper discusses the Paleobathymetric and paleoenvironmental history of the New Hebrides Island Arc and North d'Entrecasteaux Ridge during Cenozoic time based on benthic foraminiferal and sedimentological data. Oligocene and Pliocene to Pleistocene benthic foraminiferal assemblages from Sites 827, 828, 829, and 832 of Ocean Drilling Program (ODP) Leg 134 (Vanuatu) are examined by means of Q-mode factor analysis. The results of this analysis recognize the following bathymetrically significant benthic foraminiferal biofacies: (1) Globocassidulina subglobosa biofacies and Bulimina aculeata-Bolivinita quadrilatera biofacies representing the upper bathyal zone (600-1500 m); (2) Gavelinopsis praegeri-Cibicides wuellerstorfi biofacies, indicating the Pacific Intermediate Water (water depth between 1500 and 2400 m); (3) Tosaia hanzawai-Globocassidulina muloccensis biofacies, Valvulineria gunjii biofacies, and the Melonis barleeanus-Melonis sphaeroides biofacies, which characterize the lower bathyal zone; (4) the Nuttallides umbonifera biofacies, which characterizes the interval between the lysocline (approximately 3500 m) and the carbonate compensation depth (approximately 4500 m); and (5) the Rhabdammina abyssorum biofacies representing the abyssal zone below the carbonate compensation depth.
Benthic foraminiferal patterns are used to construct Paleobathymetric and paleogeographic profiles of the New Hebrides Island Arc and North d'Entrecasteaux Ridge for the following age boundaries: late Miocene/Pliocene, early/late Pliocene, Pliocene/Pleistocene, and Pleistocene/Holocene.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -15.173500 * Median Longitude: 166.638475 * South-bound Latitude: -15.315000 * West-bound Longitude: 166.284000 * North-bound Latitude: -14.796000 * East-bound Longitude: 167.573000
Date/Time Start: 1990-10-20T20:45:00 * Date/Time End: 1990-12-01T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Akimoto, K (1994): (Table 2) Distribution of benthic foraminifers from ODP Hole 134-827A. https://doi.org/10.1594/PANGAEA.788062
  2. Akimoto, K (1994): (Table 3) Distribution of benthic foraminifers from ODP Hole 134-828A. https://doi.org/10.1594/PANGAEA.788063
  3. Akimoto, K (1994): (Table 4) Distribution of benthic foraminifers from ODP Hole 134-829A. https://doi.org/10.1594/PANGAEA.788064
  4. Akimoto, K (1994): (Table 5) Distribution of benthic foraminifers from ODP Site 134-832. https://doi.org/10.1594/PANGAEA.788065