Le Houedec, Sandrine; Tremblin, Maxime; Champion, Amaury; Samankassou, Elias (2023): Neodymium and stable oxygen isotope record of ODP Hole 122-762B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.960921
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Abstract:
Nd, oxygen isotopes and Mg/Ca ratio measured on foraminifera from sediments issue of core ODP 762. Nd and Sr measurements measured on the detrital fraction of sediment issue of core ODP 762. The data covered the last 500 Kyrs of climatic and oceanographic history of the east tropical Indian Ocean. The oxygen isotopes and Mg/Ca aims to reconstruct the paleotemperature and paleosalinity of the site over the glacial/interglacial oscillation of the last 500 Kyrs. The Nd isotopes measured on carbonate reconstruct the circulation pattern at intermediate depth (1360 mbsl) over the same time period. the isotopic measurements done on the detrital components of the sediments aim to identify the origin of the regional continental inputs.
Supplement to:
Le Houedec, Sandrine; Tremblin, Maxime; Champion, Amaury; Samankassou, Elias (submitted): Modulation of the northward penetration of Antarctica intermediate waters into the eastern equatorial Indian Ocean under glacial and interglacial conditions. Scientific Reports
References:
Auer, Gerald; De Vleeschouwer, David; Christensen, Beth A (2020): Toward a Robust Plio‐Pleistocene Chronostratigraphy for ODP Site 762. Geophysical Research Letters, 47(3), e2019GL085198, https://doi.org/10.1029/2019GL085198
Project(s):
Ocean Drilling Program (ODP)
Funding:
Coverage:
Latitude: -19.887000 * Longitude: 112.254000
Date/Time Start: 1988-07-26T11:00:00 * Date/Time End: 1988-07-27T03:25:00
Minimum DEPTH, sediment/rock: 0.0850 m * Maximum DEPTH, sediment/rock: 6.8950 m
Event(s):
122-762B * Latitude: -19.887000 * Longitude: 112.254000 * Date/Time Start: 1988-07-26T11:00:00 * Date/Time End: 1988-07-27T03:25:00 * Elevation: -1371.0 m * Penetration: 175.4 m * Recovery: 174.9 m * Location: South Indian Ridge, South Indian Ocean * Campaign: Leg122 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 175.4 m cored; 0 m drilled; 99.7 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Le Houedec, Sandrine | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Le Houedec, Sandrine | Geocode – mbsf | |
| 3 | AGE | Age | ka BP | Le Houedec, Sandrine | Geocode – Age was calculated using the age model established by Auer et al., 2020 | |
| 4 | ε-Neodymium | ε-Nd | Le Houedec, Sandrine | sw, measured on bluk carbonate | ||
| 5 | ε-Neodymium, standard deviation | ε-Nd std dev | ± | Le Houedec, Sandrine | Calculated, 2 sigma | sw, measured on bluk carbonate |
| 6 | Trilobatus sacculifer, δ13C | T. sacculifer δ13C | ‰ PDB | Le Houedec, Sandrine | vs. VPDB, size fraction > 300 µm | |
| 7 | Trilobatus sacculifer, δ18O, standard deviation | T. sacculifer δ18O std dev | ± | Le Houedec, Sandrine | Calculated, 2 sigma | error associated to d18O measures correspond to the external repoducibility |
| 8 | Trilobatus sacculifer, Magnesium/Calcium ratio | T. sacculifer Mg/Ca | mmol/mol | Le Houedec, Sandrine | size fraction > 300 µm | |
| 9 | Trilobatus sacculifer, Magnesium/Calcium ratio, standard deviation | T. sacculifer Mg/Ca std dev | ± | Le Houedec, Sandrine | Calculated, 2 sigma | |
| 10 | ε-Neodymium | ε-Nd | Le Houedec, Sandrine | det, measured on the detrital fraction of the sediment | ||
| 11 | ε-Neodymium, standard deviation | ε-Nd std dev | ± | Le Houedec, Sandrine | det, measured on the detrital fraction of the sediment | |
| 12 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Le Houedec, Sandrine | det, measured on the detrital fraction of the sediment | ||
| 13 | Strontium-87/Strontium-86 ratio, standard deviation | 87Sr/86Sr std dev | ± | Le Houedec, Sandrine | det, measured on the detrital fraction of the sediment |
Change history:
2023-12-22T12:24:20 – The dataset was updated with a new age model
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
602 data points