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Kennett, James P; Rozo-Vera, Gloria A; Machain-Castillo, Maria Luisa (2000): Relative abundances of stratigraphically useful planktonic foraminifers from ODP Leg 167 sites [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.793274, Supplement to: Kennett, JP et al. (2000): Latest Neogene planktonic foraminiferal biostratigraphy of the California margin. In: Lyle, M; Koizumi, I; Richter, C; Moore, TC Jr (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 167, 1-22, https://doi.org/10.2973/odp.proc.sr.167.212.2000

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Abstract:
Late Neogene biostratigraphy of planktonic foraminifers has been investigated from 13 sites cored during Ocean Drilling Program Leg 167 off the coast of California. The planktonic foraminiferal biostratigraphy of six of these sites is presented here at higher stratigraphic resolution for the interval that encompasses the late early Pliocene through the Quaternary (~3.5 Ma to present day). The sites form a transect along the California margin from 31°N to 41°N within the California Current system. A new planktonic foraminiferal zonation has been established largely on evolutionary changes within the Neogloboquadrina plexus, supported by other taxa. A total of eight zones are recognized, most of which are broadly applicable throughout the region, thus providing a biostratigraphic zonation of the sequence at ~0.5-m.y. intervals. The new zonation appears to be unique to the California Current system.
The diversity of planktonic foraminiferal assemblages during the late Neogene appears to have remained relatively constant despite large-scale paleoclimatic change. The assemblages are consistently dominated by few taxa that almost always include the neogloboquadrinids and Globigerina bulloides. Low diversity and high dominance of the assemblages favored these and other taxa well adapted to upwelling systems exhibiting high seasonal surface ocean variability. Apparently the oceanographic conditions that favor such assemblages have persisted at least for the duration of the late Neogene (~3.5 Ma to present day). The biostratigraphically important forms have been illustrated with scanning electron micrographs.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 34.532417 * Median Longitude: -120.767667 * South-bound Latitude: 31.280300 * West-bound Longitude: -126.434000 * North-bound Latitude: 41.009000 * East-bound Longitude: -117.633000
Date/Time Start: 1996-05-06T15:30:00 * Date/Time End: 1996-06-10T20:15:00
Comment:
For a definition of the planktonic foraminifer zones (CM) see article, chapter "Zone definitions".
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Kennett, JP; Rozo-Vera, GA; Machain-Castillo, ML (2000): (Table 2) Relative abundances of stratigraphically useful planktonic foraminifers from ODP Hole 167-1011B sediments. https://doi.org/10.1594/PANGAEA.793268
  2. Kennett, JP; Rozo-Vera, GA; Machain-Castillo, ML (2000): (Table 3) Relative abundances of stratigraphically useful planktonic foraminifers from ODP Hole 167-1012A sediments. https://doi.org/10.1594/PANGAEA.793269
  3. Kennett, JP; Rozo-Vera, GA; Machain-Castillo, ML (2000): (Table 4) Relative abundances of stratigraphically useful planktonic foraminifers from ODP Site 167-1013 sediments. https://doi.org/10.1594/PANGAEA.793270
  4. Kennett, JP; Rozo-Vera, GA; Machain-Castillo, ML (2000): (Table 5) Relative abundances of stratigraphically useful planktonic foraminifers from ODP Hole 167-1014A sediments. https://doi.org/10.1594/PANGAEA.793271
  5. Kennett, JP; Rozo-Vera, GA; Machain-Castillo, ML (2000): (Table 6) Relative abundances of stratigraphically useful planktonic foraminifers from ODP Hole 167-1018A sediments. https://doi.org/10.1594/PANGAEA.793272
  6. Kennett, JP; Rozo-Vera, GA; Machain-Castillo, ML (2000): (Table 7) Relative abundances of stratigraphically useful planktonic foraminifers from ODP Hole 167-1020B sediments. https://doi.org/10.1594/PANGAEA.793273