MacLeod, Kenneth G (2006): (Table T1) Stable oxygen and carbon isotopes of bulk carbonate from ODP Leg 207 sites [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.775981, Supplement to: MacLeod, KG (2006): Data report: Stable isotopic ratios in bulk carbonate from upper Campanian and Maastrichtian samples (Demerara Rise, western tropical North Atlantic). In: Mosher, DC; Erbacher, J; Malone, MJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 207, 1-9, https://doi.org/10.2973/odp.proc.sr.207.110.2006
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Abstract:
Stable isotopic values of 174 upper Campanian and Maastrichtian bulk carbonate samples from Demerara Rise, in the western tropical Atlantic (Ocean Drilling Program Leg 207, Sites 1257-1261), largely fall between 0 per mil and 2 per mil for d13C and between -2 per mil and -3 per mil for d18O. The relatively low values and high scatter of d13C values observed suggest secondary calcite with a remineralized organic carbon component was present in most to all samples analyzed. Oxygen isotopic data exhibit less scatter and values closer to those expected for contemporary sea-surface conditions than do carbon data. However, trends in d18O data at any one section do not correlate among sites using shipboard age estimates. Regardless of whether subsequent age estimates modify correlation among holes, diagenetic concerns will remain a significant complication in any efforts to study isotopic trends during the late Campanian-Maastrichtian at these sites.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 9.258363 * Median Longitude: -54.408982 * South-bound Latitude: 9.048610 * West-bound Longitude: -54.733310 * North-bound Latitude: 9.453830 * East-bound Longitude: -54.199960
Date/Time Start: 2003-01-15T14:30:00 * Date/Time End: 2003-02-23T00:35:00
Minimum DEPTH, sediment/rock: 143.74 m * Maximum DEPTH, sediment/rock: 561.20 m
Event(s):
207-1257A * Latitude: 9.453830 * Longitude: -54.341960 * Date/Time Start: 2003-01-15T14:30:00 * Date/Time End: 2003-01-19T22:45:00 * Elevation: -2951.0 m * Penetration: 284.7 m * Recovery: 216.05 m * Location: South Atlantic Ocean * Campaign: Leg207 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 31 core; 284.7 m cored; 0 m drilled; 75.9 % recovery
207-1258A * Latitude: 9.433330 * Longitude: -54.733310 * Date/Time Start: 2003-01-22T18:15:00 * Date/Time End: 2003-01-25T10:10:00 * Elevation: -3192.2 m * Penetration: 447.5 m * Recovery: 375.46 m * Location: South Atlantic Ocean * Campaign: Leg207 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 50 cores; 447.5 m cored; 0 m drilled; 83.9 % recovery
207-1259A * Latitude: 9.299980 * Longitude: -54.199960 * Date/Time Start: 2003-02-01T12:08:00 * Date/Time End: 2003-02-04T02:55:00 * Elevation: -2353.8 m * Penetration: 558.8 m * Recovery: 372.13 m * Location: South Atlantic Ocean * Campaign: Leg207 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 60 cores; 558.8 m cored; 0 m drilled; 66.6 % recovery
Comment:
Depth, sediment is given in mbsf.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | MacLeod, Kenneth G | DSDP/ODP/IODP sample designation | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Depth, composite | Depth comp | mcd | MacLeod, Kenneth G | Intercore correlation | |
| 5 | δ13C, carbonate | δ13C carb | ‰ PDB | MacLeod, Kenneth G | Mass spectrometer Finnigan Delta Plus | |
| 6 | δ18O, carbonate | δ18O carb | ‰ PDB | MacLeod, Kenneth G | Mass spectrometer Finnigan Delta Plus |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
696 data points