Gupta, Anil K (1999): Assamblages and cluster analysis from DSDP Hole 22-214 of the eastern Indian Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.758332, Supplement to: Gupta, AK (1999): Latest Pliocene through Holocene paleoceanography of the eastern Indian Ocean: benthic foraminiferal evidence. Marine Geology, 161(1), 63-73, https://doi.org/10.1016/S0025-3227(99)00056-0
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Abstract:
Multivariate analyses of latest Pliocene through Holocene benthic foraminifera from 61 samples from Deep-Sea Drilling Project (DSDP) Site 214, eastem Indian Ocean were carried out. The 46 highest ranked species were used in R-mode factor analysis which has enabled to the identification of three environmentally significant assemblages at Site 214. Assemblage 1 is characterized by Uvigerina hispido-costata, Osangularia culter , Gavelinopsis lobatulus, Cibicides wuellerstorfi and Karreriella baccata as principal species. This assemblage is inferred to reflect high-energy, well-oxygenated and probably low-organic carbon deep-sea environment at Site 214. Assemblage 2 is defined principally by Globocassidulina pacifica and U. proboscidea and is considered to indicate an organic carbon-rich environment which resulted from high surface productivity irrespective of dissolved oxygen content. Assemblage 3 is marked by Oridorsalis umbonatus, Textularia lythostrota, Hoeglundina elegans, Pyrgo murrhina, and Pullenia quinqueloba as principal species. This assemblage is inferred to indicate a low-organic carbon environment with high pore water oxygen concentration leading to better preservation of deep-sea sediments.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: -11.336800 * Longitude: 88.718000
Date/Time Start: 1972-02-08T00:00:00 * Date/Time End: 1972-02-08T00:00:00
Event(s):
22-214 * Latitude: -11.336800 * Longitude: 88.718000 * Date/Time: 1972-02-08T00:00:00 * Elevation: -1655.0 m * Penetration: 500 m * Recovery: 340.9 m * Location: Indian Ocean//RIDGE * Campaign: Leg22 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 492.5 m cored; 2.5 m drilled; 69.2 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Gupta, AK (1999): (Table 1) Details of core sampIes, assemblages, and clusters from DSDP Hole 22-214. https://doi.org/10.1594/PANGAEA.758330
- Gupta, AK (1999): (Table 3) VARIMAX rotated factor scores of six significant factors from DSDP Hole 22-214. https://doi.org/10.1594/PANGAEA.758331