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Hodell, David A; Charles, Christopher D; Curtis, Jason H; Mortyn, P Graham; Ninnemann, Ulysses S; Venz, Kathryn A (2003): Stable isotope record of benthic and planktonic foraminifera in sediment cores of ODP Leg 177, Southern Ocean. PANGAEA, https://doi.org/10.1594/PANGAEA.701432, Supplement to: Hodell, DA et al. (2003): Data Report: Oxygen isotope stratigraphy of ODP Leg 117 sites 1088, 1089, 1090, 1093, and 1094. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-26, https://doi.org/10.2973/odp.proc.sr.177.120.2003

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Abstract:
While onboard ship during Leg 177, we used variations in sediment physical properties (mainly percent color reflectance) in conjunction with biomagnetostratigraphy to correlate among sites and predict the position of marine isotope stages (MISs) (e.g., see fig. F11 in Shipboard Scientific Party, 1999, p. 45). Our working assumption was that physical properties of Leg 177 sediments are controlled mainly by variations in carbonate content. Previous studies of Southern Ocean sediment cores have shown that carbonate concentrations are relatively high during interglacial stages and low during glacial stages at sites located within the Polar Frontal Zone (PFZ). Today, the PFZ marks a lithologic boundary in underlying sediment separating calcareous oozes to the north and silica-rich facies to the south (Hays et al., 1976). Although there is debate whether the position of the "physical" PFZ actually moved during glacial-interglacial cycles (Charles and Fairbanks, 1990; Matsumoto et al., 2001), the "biochemical" PFZ, as expressed by the CaCO3/opal boundary in sediments, certainly migrated north during glacials and south during interglacials. This gave rise to lithologic variations that are useful for stratigraphic correlation. At Leg 177 sites located north of the PFZ and at sublysoclinal depths, we expected the same pattern of carbonate variation because cores in the Atlantic basin are marked by increased carbonate dissolution during glacial periods and increased preservation during interglacials (Crowley, 1985).
Project(s):
Coverage:
Median Latitude: -45.176021 * Median Longitude: 8.658758 * South-bound Latitude: -53.180350 * West-bound Longitude: 5.130333 * North-bound Latitude: -40.936333 * East-bound Longitude: 13.562830
Date/Time Start: 1997-12-17T09:45:00 * Date/Time End: 1998-01-20T00:00:00
Event(s):
177-1088B * Latitude: -41.136060 * Longitude: 13.562830 * Date/Time Start: 1997-12-17T09:45:00 * Date/Time End: 1997-12-17T23:15:00 * Elevation: -2081.2 m * Penetration: 129 m * Recovery: 125.55 m * Location: South Atlantic Ocean * Campaign: Leg177 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 129 m cored; 0 m drilled; 97.3 % recovery
177-1089 * Latitude: -40.936333 * Longitude: 9.893983 * Date/Time: 1997-12-19T00:00:00 * Elevation: -4620.5 m * Penetration: 793.6 m * Recovery: 675.9 m * Location: South Atlantic Ocean * Campaign: Leg177 * Basis: Joides Resolution * Device: Composite Core (COMPCORE) * Comment: 86 cores; 791.6 m cored; 2 m drilled; 85.4% recovery
177-1090 * Latitude: -42.913617 * Longitude: 8.899817 * Date/Time: 1997-12-25T00:00:00 * Elevation: -3701.6 m * Penetration: 936.4 m * Recovery: 874.9 m * Location: South Atlantic Ocean * Campaign: Leg177 * Basis: Joides Resolution * Device: Composite Core (COMPCORE) * Comment: 101 cores; 936.4 m cored; 0 m drilled; 93.4% recovery
Size:
6 datasets

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Datasets listed in this Collection

  1. Hodell, DA; Charles, CD; Curtis, JH et al. (2003): (Table T1) Stable oxygen and carbon isotope ratios of Cibicidoides and carbonate concentrations of the sediment in ODP Hole 177-1088B in the Southern Ocean. https://doi.org/10.1594/PANGAEA.218111
  2. Hodell, DA; Charles, CD; Curtis, JH et al. (2003): (Table T2) Stable oxygen and carbon isotope ratios of the benthic and planktonic foraminifera, carbonate content, and percent fragmentation of planktonic foraminifers for ODP Site 177-1089 in the Southern Ocean. https://doi.org/10.1594/PANGAEA.218128
  3. Hodell, DA; Charles, CD; Curtis, JH et al. (2003): (Table T4) Stable oxygen and carbon isotope ratios of benthic and planktonic foraminifera and carbonate concentrations of sediment core TTN057-6 in the South Atlantic. https://doi.org/10.1594/PANGAEA.218129
  4. Hodell, DA; Charles, CD; Curtis, JH et al. (2003): (Table T4) Stable oxygen and carbon isotope ratios of benthic and planktonic foraminifers and carbonate concentrations of ODP Site 177-1090 in the Southern Ocean. https://doi.org/10.1594/PANGAEA.218131
  5. Hodell, DA; Charles, CD; Curtis, JH et al. (2003): (Table T6) Stable oxygen and carbon isotope ratios of Neogloboquadrina pachyderma (sinistral) at ODP Site 177-1093 in the Southern Ocean. https://doi.org/10.1594/PANGAEA.218133
  6. Hodell, DA; Charles, CD; Curtis, JH et al. (2003): (Table T7) Stable oxygen and carbon isotope ratios of Neogloboquadrina pachyderma (sinistral) at ODP Site 177-1094 in the Southern Ocean. https://doi.org/10.1594/PANGAEA.218134