Ando, Atsushi; Khim, Boo-Keun; Nakano, Takanori; Takata, Hiroyuki (2011): Appendix A Table SD1. CaCO3, δ¹⁸O, δ¹³C and Sr isotopes from ODP Site 181-1120 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.763934, Supplement to: Ando, A et al. (2011): Chemostratigraphic documentation of a complete Miocene intermediate-depth section in the Southern Ocean: Ocean Drilling Program Site 1120, Campbell Plateau off New Zealand. Marine Geology, 279(1-4), 52-62, https://doi.org/10.1016/j.margeo.2010.10.012
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Abstract:
An integrated chemostratigraphic (87Sr/86Sr, d13C and 18O) study of benthic foraminifera is presented for a 210 m-thick, intermediate depth (upper/middle bathyal transition), Miocene nannofossil ooze section of Ocean Drilling Program Site 1120, Campbell Plateau off New Zealand. Our results indicate that new 87Sr/86Sr, d13C and d18O profiles are wholly consistent with their respective Miocene reference curves. These observations facilitate identification of a total of five reliable chemostratigraphic datums, which are based on the fundamental structural changes in the 87Sr/86Sr curve and paired simultaneous d13C and d18O events. The resultant age-depth relationship clearly shows that the Miocene (20-5 Ma) biopelagic sedimentation on the Campbell Plateau was essentially continuous at a moderate to high, linear sedimentation rate (17.5 m/m.y. with an exception of the uppermost 13 m). Our findings do not support the shipboard biostratigraphic age model, which assumes that the critical early-middle Miocene transition was interrupted by a major hiatus (<~3 m.y.). Because of its unique bathymetric setting at a paleowater-depth of ~ 600 m, which is among the shallowest of the coeval isotopically studied deep-sea sections in the South Pacific/Southern Ocean, Site 1120 will serve as a reference section for surveying the evolution of intermediate-water paleoceanography in the Southern Hemisphere across the middle Miocene climatic transition.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -50.063540 * Median Longitude: 173.371655 * South-bound Latitude: -50.063700 * West-bound Longitude: 173.371650 * North-bound Latitude: -50.063380 * East-bound Longitude: 173.371660
Date/Time Start: 1998-08-28T06:00:00 * Date/Time End: 1998-09-01T06:00:00
Minimum DEPTH, sediment/rock: 23.3 m * Maximum DEPTH, sediment/rock: 221.6 m
Event(s):
181-1120B * Latitude: -50.063380 * Longitude: 173.371660 * Date/Time Start: 1998-08-28T06:00:00 * Date/Time End: 1998-08-28T20:20:00 * Elevation: -544.2 m * Penetration: 188 m * Recovery: 146.51 m * Location: South Pacific Ocean * Campaign: Leg181 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 core; 188 m cored; 0 m drilled; 77.9 % recovery
181-1120D * Latitude: -50.063700 * Longitude: 173.371650 * Date/Time Start: 1998-08-30T06:13:00 * Date/Time End: 1998-09-01T06:00:00 * Elevation: -545.9 m * Penetration: 220.7 m * Recovery: 66.17 m * Location: South Pacific Ocean * Campaign: Leg181 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 9 cores; 63.3 m cored; 157.4 m drilled; 104.5 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Ando, Atsushi | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 4 | Calcium carbonate | CaCO3 | % | Ando, Atsushi | ||
| 5 | Cibicidoides spp., δ18O | Cibicidoides spp. δ18O | ‰ PDB | Ando, Atsushi | Mass spectrometer Finnigan MAT 251 | |
| 6 | Cibicidoides spp., δ13C | Cibicidoides spp. δ13C | ‰ PDB | Ando, Atsushi | Mass spectrometer Finnigan MAT 251 | |
| 7 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Ando, Atsushi | Finnigan TRITON thermal ionization mass spectrometer (TIMS) | ||
| 8 | Strontium-87/Strontium-86 ratio, error | 87Sr/86Sr e | ± | Ando, Atsushi | Finnigan TRITON thermal ionization mass spectrometer (TIMS) | |
| 9 | Comment | Comment | Ando, Atsushi | Sr-isotope measurement | ||
| 10 | Period | Period | Ando, Atsushi |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
501 data points