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
Data
| 1 Depth sed [m] | 2 Age [ka BP] | 3 Sample label (DSDP/ODP/IODP sample designation) | 4 187Os/188Os (Bulk, Negative-thermal ioniza...) | 5 187Os/188Os (6% Leach, Negative-thermal io...) | 6 187Os/188Os (1.5% Leach, Negative-thermal ...) | 7 187Os/188Os (0.15% Leach, Negative-thermal...) | 8 187Os/188Os e [±] (Bulk) | 9 187Os/188Os e [±] (6% Leach) | 10 187Os/188Os e [±] (1.5% Leach) | 11 187Os/188Os e [±] (0.15% Leach) | 12 Os [ng/kg] (Bulk) | 13 Os [ng/kg] (6% Leach) | 14 Os [ng/kg] (1.5% Leach) | 15 Os [ng/kg] (0.15% Leach) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.98 | 0.52 | 146-893A-1H-1,98-100 | 1.030 | 0.002 | 53 | |||||||||
| 2.02 | 1.10 | 146-893A-1H-2,50-52 | 0.970 | 1.023 | 1.017 | 0.004 | 0.002 | 0.002 | 166 | 65 | 52 | |||
| 7.96 | 4.74 | 146-893A-2H-1,146-148 | 0.975 | 0.007 | 33 | |||||||||
| 9.06 | 5.39 | 146-893A-2H-2,102-104 | 1.035 | 0.002 | 48 | |||||||||
| 15.51 | 9.21 | 146-893A-2H-6,146-148 | 1.011 | 0.010 | 43 | |||||||||
| 16.05 | 9.56 | 146-893A-2H-7,50-52 | 0.678 | 0.963 | 0.903 | 0.007 | 0.005 | 0.004 | 179 | 27 | 74 | |||
| 16.50 | 10.26 | 146-893A-3H-1,50-52 | 0.926 | 0.002 | 46 | |||||||||
| 18.50 | 11.58 | 146-893A-3H-2,100-102 | 1.006 | 0.006 | 42 | |||||||||
| 24.51 | 15.39 | 146-893A-3H-6,101-103 | 0.944 | 0.004 | 36 | |||||||||
| 30.98 | 19.62 | 146-893A-4H-4,98-100 | 0.878 | 0.980 | 1.067 | 0.005 | 0.007 | 0.005 | 129 | 38 | 42 | |||
| 31.97 | 20.23 | 146-893A-4H-5,47-49 | 0.974 | 0.002 | 50 | |||||||||
| 52.14 | 34.72 | 146-893A-6H-6,14-16 | 0.988 | 0.002 | 65 | |||||||||
| 86.01 | 61.09 | 146-893A-10H-3,51-53 | 0.957 | 0.005 | 44 | |||||||||
| 143.71 | 118.60 | 146-893A-16H-3,121-123 | 1.036 | 0.004 | 73 | |||||||||
| 154.05 | 125.63 | 146-893A-17H-4,42-44 | 0.980 | 0.005 | 52 |