Williams, Douglas F; Healy-Williams, Nancy; Thunell, Robert C; Leventer, Amy (1983): (Table 1) Oxygen and carbon isotopes and calcium carbonte of bulk carbonate at DSDP Hole 72-516F [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.812508, Supplement to: Williams, DF et al. (1983): Detailed stable isotope and carbonate records from the upper Maestrichtian-lower Paleocene Section of Hole 516F (Leg 72) including the Cretaceous/Tertiary boundary. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 921-929, https://doi.org/10.2973/dsdp.proc.72.147.1983
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Abstract:
A detailed oxygen and carbon isotope study of the upper Maestrichtian-lower Paleocene section of Hole 516F from the Rio Grande Rise reveals that large isotopic anomalies are clearly associated with the Cretaceous/Tertiary boundary. Across the Cretaceous/Tertiary boundary, the total carbonate content reaches a maximum exceeding 80% before rapidly decreasing in covariance with the carbon isotope record. This strong covariance between d13C and percent CaCO3 suggests either a significant reduction in primary productivity or a rapid shoaling of the calcium carbonate compensation depth. Importantly, the d13C record 2 Ma after the Cretaceous/Tertiary boundary remained depleted in 13C by at least 0.5 per mil compared to the late Maestrichtian.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: -30.276500 * Longitude: -35.285000
Date/Time Start: 1980-03-11T00:00:00 * Date/Time End: 1980-03-11T00:00:00
Minimum Elevation: -1313.0 m * Maximum Elevation: -1313.0 m
Event(s):
72-516F * Latitude: -30.276500 * Longitude: -35.285000 * Date/Time: 1980-03-11T00:00:00 * Elevation: -1313.0 m * Penetration: 1270.6 m * Recovery: 690.1 m * Location: South Atlantic/CONT RISE * Campaign: Leg72 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 127 cores; 1092.5 m cored; 9 m drilled; 63.2 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Williams, Douglas F | DSDP/ODP/IODP sample designation | ||
| 2 | δ18O, bulk carbonate | δ18O bulk carb | ‰ PDB | Williams, Douglas F | see reference(s) | |
| 3 | δ18O, standard deviation | δ18O std dev | ± | Williams, Douglas F | see reference(s) | Bulk carbonate |
| 4 | Replicates | Repl | # | Williams, Douglas F | d18O, bulk carbonate | |
| 5 | δ13C, bulk carbonate | δ13C bulk carb | ‰ PDB | Williams, Douglas F | see reference(s) | |
| 6 | δ13C, standard deviation | δ13C std dev | ± | Williams, Douglas F | see reference(s) | Bulk carbonate |
| 7 | Replicates | Repl | # | Williams, Douglas F | d13C, bulk carbonate | |
| 8 | Calcium carbonate | CaCO3 | % | Williams, Douglas F | see reference(s) | Bulk |
| 9 | Calcium carbonate, standard deviation | CaCO3 std dev | ± | Williams, Douglas F | see reference(s) | Bulk |
| 10 | Replicates | Repl | # | Williams, Douglas F | CaCO3, bulk |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
527 data points