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Poag, C Wylie; Reynolds, Leslie A; Mazzullo, James M; Keigwin, Lloyd D (1985): Foraminiferal, lithic, and isotopic changes across four major unconformities at DSDP Hole 80-548A [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.807710, Supplement to: Poag, CW et al. (1985): Foraminiferal, lithic, and isotopic changes across four major unconformities at Deep Sea Drilling Project Site 548, Goban Spur. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 539-555, https://doi.org/10.2973/dsdp.proc.80.114.1985

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Abstract:
Sediment samples taken at close intervals across four major unconformities (middle Miocene/upper Miocene, lower Oligocene/upper Oligocene, lower Eocene/upper Eocene, lower Paleocene/upper Paleocene) at DSDP-IPOD Site 548, Goban Spur, reveal that coeval biostratigraphic gaps, sediment discontinuities, and seismic unconformities coincide with postulated low stands of sea level. Foraminiferal, lithic, and isotopic analyses demonstrate that environments began to shift prior to periods of marine erosion, and that sedimentation resumed in the form of turbidites derived from nearby upper-slope sources. The unconformities appear to have developed where a water-mass boundary intersected the continental slope, rhythmically crossing the drill site in concert with sea-level rise and fall.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 48.915500 * Longitude: -12.164500
Date/Time Start: 1981-06-10T00:00:00 * Date/Time End: 1981-06-10T00:00:00
Event(s):
80-548A * Latitude: 48.915500 * Longitude: -12.164500 * Date/Time: 1981-06-10T00:00:00 * Elevation: -1251.0 m * Penetration: 551.5 m * Recovery: 248.6 m * Location: North Atlantic/SPUR * Campaign: Leg80 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 37 cores; 334.2 m cored; 9.5 m drilled; 74.4 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
8 datasets

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Datasets listed in this publication series

  1. Poag, CW; Reynolds, LA; Mazzullo, JM et al. (1985): (Table 2) Clay-mineral characteristics at DSDP Hole 80-548A. https://doi.org/10.1594/PANGAEA.807703
  2. Poag, CW; Reynolds, LA; Mazzullo, JM et al. (1985): (Table 3) Stable isotopes δ¹⁸O and δ¹³C at DSDP Hole 80-548A. https://doi.org/10.1594/PANGAEA.807704
  3. Poag, CW; Reynolds, LA; Mazzullo, JM et al. (1985): (Table 5) Planktonic foraminifera genera assemblage at DSDP Hole 80-548A. https://doi.org/10.1594/PANGAEA.807706
  4. Poag, CW; Reynolds, LA; Mazzullo, JM et al. (1985): (Table 1) Grain-size group abundances at DSDP Hole 80-548A. https://doi.org/10.1594/PANGAEA.807702
  5. Poag, CW; Reynolds, LA; Mazzullo, JM et al. (1985): (Table 4) Benthic foraminifera genera assemblage at DSDP Section 80-548A-11-3. https://doi.org/10.1594/PANGAEA.807705
  6. Poag, CW; Reynolds, LA; Mazzullo, JM et al. (1985): (Table 6) Benthic foraminifera genera assemblage at DSDP Section 80-548A-16-3. https://doi.org/10.1594/PANGAEA.807707
  7. Poag, CW; Reynolds, LA; Mazzullo, JM et al. (1985): (Table 7) Benthic foraminifera genera assemblage at DSDP Section 80-548A-22. https://doi.org/10.1594/PANGAEA.807708
  8. Poag, CW; Reynolds, LA; Mazzullo, JM et al. (1985): (Table 8) Benthic foraminifera genera assemblage at DSDP Section 80-548A-28. https://doi.org/10.1594/PANGAEA.807709