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 74-525A from Walvis Ridge, South Atlantic [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.683527, 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: -29.070700 * Longitude: 2.985300
Date/Time Start: 1980-06-10T00:00:00 * Date/Time End: 1980-06-10T00:00:00
Minimum DEPTH, sediment/rock: 408.76 m * Maximum DEPTH, sediment/rock: 476.58 m
Event(s):
74-525A * Latitude: -29.070700 * Longitude: 2.985300 * Date/Time: 1980-06-10T00:00:00 * Elevation: -2467.0 m * Penetration: 678.1 m * Recovery: 406.6 m * Location: South Atlantic/CREST * Campaign: Leg74 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 62 cores; 549.7 m cored; 6 m drilled; 74 % 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:
78 data points