Alcalá-Herrera, Javier A; Grossman, Ethan L; Gartner, Stefan (1992): (Appendix) Stable carbon and oxygen isotope ratios of fine-fraction sediments across the Cretaceous/Tertiary boundary of DSDP Hole 74-527 from Walvis Ridge, South Atlantic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.683528, In supplement to: Alcalá-Herrera, JA et al. (1992): Nannofossil diversity and equitability and fine-fraction d13C across the Cretaceous/Tertiary boundary at Walvis Ridge Leg 74, South Atlantic. Marine Micropaleontology, 20(1), 77-88, https://doi.org/10.1016/0377-8398(92)90010-H
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Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: -28.041500 * Longitude: 1.763300
Date/Time Start: 1980-06-28T00:00:00 * Date/Time End: 1980-06-28T00:00:00
Minimum DEPTH, sediment/rock: 267.26 m * Maximum DEPTH, sediment/rock: 296.15 m
Event(s):
74-527 * Latitude: -28.041500 * Longitude: 1.763300 * Date/Time: 1980-06-28T00:00:00 * Elevation: -4428.0 m * Penetration: 384.5 m * Recovery: 243.4 m * Location: South Atlantic * Campaign: Leg74 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 43 cores; 380 m cored; 4.5 m drilled; 64.1 % recovery
Comment:
Ages were obtained using the magnetostratigraphy data reported by Chave (1984) and age interpretation made by Shackleton and Hall (1984). The K/T boundary is assumed to have an absolute age of 64.5 Ma. based on recent precise determinations of the age of the K/T boundary (Izett et al., 1991).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | AGE | Age | ka BP | Geocode | ||
| 3 | δ13C, carbonate | δ13C carb | ‰ PDB | Alcalá-Herrera, Javier A | 2-63 µm size fraction, mainly formed by calcareous nannoplankton | |
| 4 | δ18O, carbonate | δ18O carb | ‰ PDB | Alcalá-Herrera, Javier A | 2-63 µm size fraction, mainly formed by calcareous nannoplankton |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
52 data points
Data
| 1 Depth sed [m] | 2 Age [ka BP] | 3 δ13C carb [‰ PDB] | 4 δ18O carb [‰ PDB] |
|---|---|---|---|
| 267.26 | 62313 | 1.75 | -0.88 |
| 269.41 | 62675 | 1.87 | -0.55 |
| 271.08 | 62963 | 2.15 | -0.57 |
| 272.38 | 63201 | 2.11 | -0.15 |
| 273.22 | 63413 | 2.13 | -0.21 |
| 275.10 | 63755 | 1.86 | -0.68 |
| 275.50 | 63817 | 1.63 | -0.69 |
| 276.00 | 63895 | 1.61 | 0.02 |
| 276.40 | 63958 | 1.38 | -0.40 |
| 276.48 | 63970 | 1.25 | -0.63 |
| 276.55 | 63981 | 1.31 | -0.52 |
| 277.05 | 64059 | 1.41 | -0.55 |
| 278.10 | 64222 | 0.99 | -0.53 |
| 279.00 | 64354 | 1.39 | -0.57 |
| 279.20 | 64383 | 1.48 | 0.14 |
| 279.50 | 64427 | 2.06 | 0.44 |
| 279.65 | 64449 | 2.15 | 0.29 |
| 279.75 | 64463 | 2.34 | 0.72 |
| 279.85 | 64478 | 2.32 | 0.50 |
| 279.95 | 64493 | 2.49 | -0.58 |
| 280.05 | 64502 | 3.18 | -0.32 |
| 280.15 | 64506 | 3.23 | -0.24 |
| 280.70 | 64530 | 3.09 | -0.10 |
| 286.03 | 64713 | 2.84 | -0.57 |
| 288.84 | 64872 | 2.82 | -0.27 |
| 296.15 | 65176 | 2.91 | -0.14 |