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Corselli, C; Principato, Maria Speranza; Maffioli, P; Crudeli, Daniela (2002): Planktonic assemblages during sapropel S5 deposits in the Urania Basin [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.844527, Supplement to: Corselli, C et al. (2002): Changes in planktonic assemblages during sapropel S5 deposition: Evidence from Urania Basin area, eastern Mediterranean. Paleoceanography, 17(3), 1-1-1-30, https://doi.org/10.1029/2000PA000536

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Abstract:
A micropaleontological study of planktonic assemblages on the partially laminated sapropel S5 (late Pleistocene, marine isotope stage (MIS) 5e) was performed in two piston cores from Urania Basin area (eastern Mediterranean, west of Crete): UM94PC16 and UM94PC31 recovered during a PALEOFLUX Project Cruise. The abundance of Florisphaera profunda indicates the development of a deep chlorophyll maximum (DCM) before the anoxic condition at bottom were established, whereas patterns of upper photic zone coccoliths suggest extreme oligotrophy in surface water. The short appearance of Globorotalia scitula and the presence of Globigerinoides ruber in the lower part of sapropel testify to a thermal stratification, also recorded by changes in primary producers. During G. scitula occurrence, diatoms, mainly represented by Pseudosolenia calcar-avis, appear and bloom because of their capability in using nutrients from DCM. Scanning electron microscope analyses performed on selected intervals from UM94PC16 show that the sapropel is organized in microlaminae mostly composed by siliceous microfossils. In particular, sapropel S5 could be related to an enhanced nutrient availability in the lower-middle part of the photic zone, stratified conditions, and a higher continental input.
Coverage:
Median Latitude: 35.252223 * Median Longitude: 21.413964 * South-bound Latitude: 35.223890 * West-bound Longitude: 21.413330 * North-bound Latitude: 35.290000 * East-bound Longitude: 21.414440
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
7 datasets

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Datasets listed in this publication series

  1. Corselli, C; Principato, MS; Maffioli, P et al. (2002): (Table 3) Relative abundance of selected calcareous nannofossils species in sediment core UM94PC16. https://doi.org/10.1594/PANGAEA.844521
  2. Corselli, C; Principato, MS; Maffioli, P et al. (2002): (Table 5) Relative abundance of diatoms in sediment core UM94PC16. https://doi.org/10.1594/PANGAEA.844523
  3. Corselli, C; Principato, MS; Maffioli, P et al. (2002): (Table 1) Quantitative analyses of planktonic foraminifera in sediment core UM94PC16. https://doi.org/10.1594/PANGAEA.844519
  4. Corselli, C; Principato, MS; Maffioli, P et al. (2002): (Table 4) Relative abundance of selected calcareous nannofossils species in sediment core UM94PC31. https://doi.org/10.1594/PANGAEA.844522
  5. Corselli, C; Principato, MS; Maffioli, P et al. (2002): (Table 6) Relative abundance of diatoms in sediment core UM94PC31. https://doi.org/10.1594/PANGAEA.844524
  6. Corselli, C; Principato, MS; Maffioli, P et al. (2002): (Table 7) Stable carbon and oxygen isotope ratios of Globigerinoides ruber from sediment core UM94PC31. https://doi.org/10.1594/PANGAEA.844526
  7. Corselli, C; Principato, MS; Maffioli, P et al. (2002): (Table 2) Quantitative analyses of planktonic foraminifera in sediment core UM94PC31. https://doi.org/10.1594/PANGAEA.844520