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Hess, Silvia; Kuhnt, Wolfgang (2005): Benthic foraminiferal faunas of Miocene to Holocene sediments of ODP Site 184-1143 from the southern South China Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.676892, Supplement to: Hess, S; Kuhnt, W (2005): Neogene and Quaternary paleoceanographic changes in the southern South China Sea (Site 1143): the benthic foraminiferal record. Marine Micropaleontology, 54(1-2), 63-87, https://doi.org/10.1016/j.marmicro.2004.09.004

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Abstract:
Deep-sea benthic foraminiferal assemblages from Ocean Drilling Program (ODP) Site 1143 located in the southern South China Sea (SCS) were investigated to evaluate the relationship between faunal composition patterns and paleoceanographic changes during the last 6 million years (late Miocene to Holocene). We used multivariate statistics (correspondence analysis) to analyze carbon-flux-related changes in assemblage composition of benthic foraminifers. Additional proxies for carbon flux and deep-water ventilation include delta13C records of epifaunal Cibicidoides wuellerstorfi and infaunal Uvigerina peregrina var. dirupta and Melonis pompilioides, benthic foraminiferal accumulation rates (BFARs), diversity indices, and relative abundances of indicator species. We observe three significant benthic faunal changes in the southern South China Sea during the last 6 million years. Strong fluctuations in BFAR and relative abundance of productivity indicator species between glacial and interglacial stages after the mid-Pleistocene revolution (MPR) at approximately 0.9 Ma, indicating stronger seasonal carbon flux fluctuations, are accompanied by the extinction of such species as Stilostomella spp. Increases in carbon flux indicator species are coupled with an overall decrease in benthic foraminifer diversity around 3.0 Ma in the late Pliocene. This may indicate increasing carbon flux in a period of productivity maximum caused by enhanced offshore upwelling from intensified winter monsoon wind strength.
Keyword(s):
ODP; paleoproductivity; Quarternary; South China Sea
Project(s):
Coverage:
Latitude: 9.361933 * Longitude: 113.285133
Date/Time Start: 1999-03-03T00:00:00 * Date/Time End: 1999-03-10T00:00:00
Event(s):
184-1143 * Latitude: 9.361933 * Longitude: 113.285133 * Date/Time Start: 1999-03-03T00:00:00 * Date/Time End: 1999-03-10T00:00:00 * Elevation: -2772.3 m * Penetration: 1158.2 m * Recovery: 1101.8 m * Location: South China Sea * Campaign: Leg184 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 126 cores; 1158.2 m cored; 0 m drilled; 95.1% recovery
Size:
12 datasets

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Datasets listed in this publication series

  1. Hess, S; Kuhnt, W (2005): (Table 1) Benthic foraminiferal datums of ODP Site 184-1143 from the southern South China Sea. https://doi.org/10.1594/PANGAEA.676891
  2. Hess, S; Kuhnt, W (2005): Benthic foraminifera abundance of ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.230243
  3. Hess, S; Kuhnt, W (2005): Correspondence analysis based on complete downhole samples of Site 184-1143. https://doi.org/10.1594/PANGAEA.230271
  4. Hess, S; Kuhnt, W (2005): Correspondence analysis based on samples older than 900 ka of ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.230278
  5. Hess, S; Kuhnt, W (2005): Correspondence analysis based on samples older than 900ka with 66 species in 306 samples of ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.230286
  6. Hess, S; Kuhnt, W (2005): Correspondence analysis based on samples younger than 900 ka of ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.230275
  7. Hess, S; Kuhnt, W (2005): Correspondence analysis based on samples younger than 900ka with 47 species in 39 samples of ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.230285
  8. Hess, S; Kuhnt, W (2005): Correspondence analysis based on the complete downcore sample set (passive parameters) of ODP Site 184-1143 and surface samples of the South China Sea (active parameters). https://doi.org/10.1594/PANGAEA.230287
  9. Hess, S; Kuhnt, W (2005): Correspondence analysis based on the complete downcore sample set (passive parameters) of ODP Site 184-1143 and surface samples of the South China Sea (active parameters). https://doi.org/10.1594/PANGAEA.230279
  10. Hess, S; Kuhnt, W (2005): Correspondence analysis based on the complete downcore sample set with 73 species in 345 samples of ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.230284
  11. Hess, S; Kuhnt, W (2005): Diversity of benthic foraminiferal faunas and benthic foraminifera accumulation rates of ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.230269
  12. Hess, S; Kuhnt, W (2005): Stable carbon and oxygen isotope ratios of benthic foraminifera from ODP Site 184-1143. https://doi.org/10.1594/PANGAEA.230196