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Lang, Thomas H; Watkins, David K (1984): Cenozoic calcareous nannofossils in DSDP Leg 77 holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.816716, Supplement to: Lang, TH; Watkins, DK (1984): Cenozoic Calcareous Nannofossils from Deep Sea Drilling Project Leg 77: Biostratigraphy and Delineation of Hiatuses. In: Buffler, RT; Schlager, W; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 77, 629-648, https://doi.org/10.2973/dsdp.proc.77.126.1984

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Abstract:
Three of the six DSDP Leg 77 sites drilled in the western approaches to the Straits of Florida yielded thick sequences of Cenozoic sediment rich in calcareous nannofossils. Hiatuses are prominent in each of these continuously cored intervals. A prominent upper Oligocene hiatus, observed at each of these three sites, can be correlated to a large-scale "global" regression event. Other disconformable horizons present in the study area cannot be positively related to sealevel fluctuations and may be caused by a number of factors including local tectonic activity. Paleogene sections are generally marked by thick accumulations within the upper Oligocene Sphenolithus ciperoensis Zone and by a pronounced braarudosphaerid-holococcolith bloom recorded in the lower Oligocene and upper Eocene. This bloom is particularly well developed at Site 540. All samples examined contain abundant nannofossils. Preservation fluctuates throughout the sections from good to poor.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 23.749150 * Median Longitude: -84.779200 * South-bound Latitude: 23.489800 * West-bound Longitude: -85.209700 * North-bound Latitude: 23.849200 * East-bound Longitude: -84.370800
Date/Time Start: 1981-01-09T00:00:00 * Date/Time End: 1981-01-19T00:00:00
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. Lang, TH; Watkins, DK (1984): (Figure 4) Ranges of Cenozoic calcareous nannofossil species observed at DSDP Hole 77-536. https://doi.org/10.1594/PANGAEA.816710
  2. Lang, TH; Watkins, DK (1984): (Figure 5) Ranges of Cenozoic calcareous nannofossil species observed at DSDP Hole 77-538A. https://doi.org/10.1594/PANGAEA.816711
  3. Lang, TH; Watkins, DK (1984): (Figure 6) Ranges of Cenozoic calcareous nannofossil species observed at DSDP Hole 77-540. https://doi.org/10.1594/PANGAEA.816712
  4. Lang, TH; Watkins, DK (1984): (Figure 7) Ranges of Cenozoic calcareous nannofossil species observed at DSDP Hole 77-540. https://doi.org/10.1594/PANGAEA.816715