Clauser, Sebastian; Renard, Maurice; Richebois, Gilbert (1988): Concentrations of trace elements and stable carbon and oxygen isotope record of carbonates of ODP Leg 103 holes (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.743852, Supplement to: Clauser, S et al. (1988): Variations in trace element contents and isotopic compositions of Lower Cretaceous carbonates from the Galicia margin (ODP Leg 103): reconstruction of the paleochemistry of the Early Cretaceous Ocean. In: Boillot, G; Winterer, EL; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 103, 489-504, https://doi.org/10.2973/odp.proc.sr.103.124.1988
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Abstract:
Trace element contents (Sr, Mg, Mn, and Fe) and the composition of oxygen and carbon isotopes show that late burial diagenesis did not play an important role in pelagic carbonate chemistry in the bulk carbonates recovered from Holes 638B, 638C, and 641C (except for anoxic pore-water diagenesis in Valanginian sediments). The evolution of these different geochemical markers documents the importance and global extent of the Barremian ocean chemistry crisis. A reconstruction of paleoceanographic and climatic conditions during the Early Cretaceous is proposed. Sea level rose eustatically from the early Hauterivian to early Albian, but a rapid down and up fluctuation occurred during the Barremian. Soluble supply from the continent decreased during the Valanginian-early Hauterivian while oceanic hydrothermal supply increased. The climate cooled slightly during the Hauterivian, rapidly warmed during the Barremian, and cooled again during the Aptian.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 42.154150 * Median Longitude: -12.189200 * South-bound Latitude: 42.153300 * West-bound Longitude: -12.196700 * North-bound Latitude: 42.155000 * East-bound Longitude: -12.181700
Date/Time Start: 1985-05-06T00:15:00 * Date/Time End: 1985-06-15T13:30:00
Minimum DEPTH, sediment/rock: 160.00 m * Maximum DEPTH, sediment/rock: 422.45 m
Event(s):
103-638B * Latitude: 42.153300 * Longitude: -12.196700 * Date/Time Start: 1985-05-06T00:15:00 * Date/Time End: 1985-05-12T23:15:00 * Elevation: -4673.0 m * Penetration: 431.1 m * Recovery: 212.87 m * Location: South Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 45 cores; 431.1 m cored; 0 m drilled; 49.4 % recovery
103-641C * Latitude: 42.155000 * Longitude: -12.181700 * Date/Time Start: 1985-06-11T10:45:00 * Date/Time End: 1985-06-15T13:30:00 * Elevation: -4650.0 m * Penetration: 305.2 m * Recovery: 112.48 m * Location: South Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 16 cores; 154.2 m cored; 0 m drilled; 72.9 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Clauser, Sebastian | DSDP/ODP/IODP sample designation | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Calcium carbonate | CaCO3 | % | Clauser, Sebastian | ||
| 5 | Strontium | Sr | mg/kg | Clauser, Sebastian | X-ray diffraction (XRD) | |
| 6 | Magnesium | Mg2+ | mg/kg | Clauser, Sebastian | X-ray diffraction (XRD) | |
| 7 | Manganese | Mn | mg/kg | Clauser, Sebastian | X-ray diffraction (XRD) | |
| 8 | Iron | Fe | mg/kg | Clauser, Sebastian | X-ray diffraction (XRD) | |
| 9 | δ13C, carbonate | δ13C carb | ‰ PDB | Clauser, Sebastian | Mass spectrometer VG Micromass 602 | |
| 10 | δ18O, carbonate | δ18O carb | ‰ PDB | Clauser, Sebastian | Mass spectrometer VG Micromass 602 |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
526 data points