Williams, Gwyneth A; Turekian, Karl K (2004): Osmium concentrations and isotope ratios of ODP Site 146-893A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.708132, Supplement to: Williams, GA; Turekian, KK (2004): The glacial-interglacial variation of seawater osmium isotopes as recorded in Santa Barbara Basin. Earth and Planetary Science Letters, 228(3-4), 379-389, https://doi.org/10.1016/j.epsl.2004.10.004
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Abstract:
The Pleistocene deposits of Santa Barbara Basin (SBB) show laminations during interglacial periods typical of an anoxic or suboxic depositional environment and more sporadically laminated deposits during glacial times, indicating a more oxic environment of deposition. The 187Os/188Os value of sediment leaches varies as a function of climate, consistent with a more radiogenic Os signal during interglacial times and less radiogenic Os values more typical of glacial times. The signal is confounded by contributions from a high Os detrital component with a variable 187Os/188Os value, but generally agrees with prior result from deposits from other marine environments.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 34.287500 * Longitude: -120.036000
Date/Time Start: 1992-11-20T10:30:00 * Date/Time End: 1992-11-20T23:40:00
Minimum DEPTH, sediment/rock: 0.98 m * Maximum DEPTH, sediment/rock: 154.05 m
Event(s):
146-893A * Latitude: 34.287500 * Longitude: -120.036000 * Date/Time Start: 1992-11-20T10:30:00 * Date/Time End: 1992-11-20T23:40:00 * Elevation: -588.0 m * Penetration: 196.5 m * Recovery: 204.91 m * Location: North Pacific Ocean * Campaign: Leg146 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 core; 196.5 m cored; 0 m drilled; 104.3 % recovery
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 | Sample code/label | Sample label | Williams, Gwyneth A | DSDP/ODP/IODP sample designation | ||
| 4 | Osmium-187/Osmium-188 ratio | 187Os/188Os | Williams, Gwyneth A | Negative-thermal ionization mass spectrometry (N-TIMS) | Bulk | |
| 5 | Osmium-187/Osmium-188 ratio | 187Os/188Os | Williams, Gwyneth A | Negative-thermal ionization mass spectrometry (N-TIMS) | 6% Leach | |
| 6 | Osmium-187/Osmium-188 ratio | 187Os/188Os | Williams, Gwyneth A | Negative-thermal ionization mass spectrometry (N-TIMS) | 1.5% Leach | |
| 7 | Osmium-187/Osmium-188 ratio | 187Os/188Os | Williams, Gwyneth A | Negative-thermal ionization mass spectrometry (N-TIMS) | 0.15% Leach | |
| 8 | Osmium-187/Osmium-188, error | 187Os/188Os e | ± | Williams, Gwyneth A | Bulk | |
| 9 | Osmium-187/Osmium-188, error | 187Os/188Os e | ± | Williams, Gwyneth A | 6% Leach | |
| 10 | Osmium-187/Osmium-188, error | 187Os/188Os e | ± | Williams, Gwyneth A | 1.5% Leach | |
| 11 | Osmium-187/Osmium-188, error | 187Os/188Os e | ± | Williams, Gwyneth A | 0.15% Leach | |
| 12 | Osmium | Os | ng/kg | Williams, Gwyneth A | Bulk | |
| 13 | Osmium | Os | ng/kg | Williams, Gwyneth A | 6% Leach | |
| 14 | Osmium | Os | ng/kg | Williams, Gwyneth A | 1.5% Leach | |
| 15 | Osmium | Os | ng/kg | Williams, Gwyneth A | 0.15% Leach |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
78 data points