Prell, Warren L (1982): (Table 1) Globigerinoides sacculifer oxygen and carbon isotopes at DSDP Site 68-502 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.817105, Supplement to: Prell, WL (1982): Oxygen and carbon isotope stratigraphy for the Quaternary of Hole 502B: Evidence for two modes of isotopic variability. In: Prell, WL; Gardner, JV; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 68, 455-464, https://doi.org/10.2973/dsdp.proc.68.120.1982
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Published: 1982 (exact date unknown) • DOI registered: 2013-08-23
Abstract:
The oxygen and carbon isotopic record of G. sacculifer in DSDP Holes 502 and 502B shows that the Quaternary interval is almost complete. A slight hiatus exists in the upper Matuyama chron. The d18O data show two modes of isotopic variation: depleted values and low variability in the early Quaternary (910-1660 k.y.) and enriched composition and high variability in the late Quaternary (0-730 k.y.). These data document the change in mean composition between the early and late Quaternary, which occurs about 900 k.y. ago. These two modes of d18O variation reflect the changing ice budget on the continents and imply different envelopes of sea level variation during the early and late Quaternary. The occurrence of these two modes implies that boundary conditions during the early Quaternary were significantly different from those of the late Quaternary.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 11.491050 * Median Longitude: -79.378950 * South-bound Latitude: 11.490300 * West-bound Longitude: -79.379700 * North-bound Latitude: 11.491800 * East-bound Longitude: -79.378200
Date/Time Start: 1979-08-16T00:00:00 * Date/Time End: 1979-08-16T00:00:00
Minimum DEPTH, sediment/rock: 0.025 m * Maximum DEPTH, sediment/rock: 39.550 m
Event(s):
68-502 * Latitude: 11.490300 * Longitude: -79.379700 * Date/Time: 1979-08-16T00:00:00 * Elevation: -3051.0 m * Penetration: 214.1 m * Recovery: 154.2 m * Location: Caribbean Sea/RIDGE * Campaign: Leg68 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 49 cores; 209.7 m cored; 4.4 m drilled; 73.6 % recovery
68-502B * Latitude: 11.491800 * Longitude: -79.378200 * Date/Time: 1979-08-16T00:00:00 * Elevation: -3051.0 m * Penetration: 99.7 m * Recovery: 87.7 m * Location: Caribbean Sea/RIDGE * Campaign: Leg68 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 23 cores; 99.7 m cored; 0 m drilled; 88 % recovery
Comment:
All measurements are on Globigerinoides sacculifer (300-355 µm). On the basis of blind duplicates, analytical precision is ±0.10 per mil (average 1/2 delta) for d18O and ±0.05 per mil for d13C. Sediment depth is given in mbsf and is corrected.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Prell, Warren L | DSDP/ODP/IODP sample designation | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Size fraction > 0.063 mm, sand | >63 µm | % | Prell, Warren L | ||
| 5 | Globigerinoides sacculifer, δ18O | G. sacculifer δ18O | ‰ PDB | Prell, Warren L | Mass spectrometer VG Micromass 602 | |
| 6 | Globigerinoides sacculifer, δ13C | G. sacculifer δ13C | ‰ PDB | Prell, Warren L | Mass spectrometer VG Micromass 602 |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1455 data points
Download Data
Datasets with similar metadata
- Schumann, D; Nagel, U (1982): (Table 1) Mineralogy of sediments from DSDP Site 68-502. https://doi.org/10.1594/PANGAEA.817068
- Kent, DV; Spariosu, DJ (1982): (Table 1) Magnetozone boundaries at DSDP Site 68-502. https://doi.org/10.1594/PANGAEA.817076
- Oppo, DW; Raymo, ME; Lohmann, G et al. (1995): (Table 3) Age model of DSDP Site 68-502. https://doi.org/10.1594/PANGAEA.52695