Lalou, Claude; Brichet, Evelyne; Leclaire, Héloïse; Duplessy, Jean-Claude (1983): (Table 2) Radiochemistry in the upper sediments at DSDP Hole 70-509B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.816010, In supplement to: Lalou, C et al. (1983): Uranium series disequilibrium and isotope stratigraphy in hydrothermal mound samples from DSDP Sites 506–509, Leg 70 and Site 424, Leg 54: An attempt at chronology. In: Honnorez, J; Von Herzen, RP; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 70, 303-314, https://doi.org/10.2973/dsdp.proc.70.115.1983
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Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 0.588800 * Longitude: -86.132200
Date/Time Start: 1979-11-27T00:00:00 * Date/Time End: 1979-11-27T00:00:00
Minimum Elevation: -2687.0 m * Maximum Elevation: -2687.0 m
Event(s):
70-509B * Latitude: 0.588800 * Longitude: -86.132200 * Date/Time: 1979-11-27T00:00:00 * Elevation: -2687.0 m * Penetration: 33.8 m * Recovery: 32.5 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 33.8 m cored; 0 m drilled; 96.2 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Lalou, Claude | DSDP/ODP/IODP sample designation | ||
| 2 | Description | Description | Lalou, Claude | |||
| 3 | Thorium-232 | 232Th | mg/kg | Lalou, Claude | Alpha spectrometry | |
| 4 | Thorium-232, standard deviation | 232Th std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 5 | Uranium-238 | 238U | mg/kg | Lalou, Claude | Alpha spectrometry | |
| 6 | Uranium-238, standard deviation | 238U std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 7 | Uranium-234/Uranium-238 activity ratio | (234U/238U) | Lalou, Claude | Alpha spectrometry | Unit is dpm/dpm | |
| 8 | Uranium-234/Uranium-238 activity ratio, standard deviation | (234U/238U) std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 9 | Uranium-234 | 234U | dpm/g | Lalou, Claude | Alpha spectrometry | |
| 10 | Uranium-234, standard deviation | 234U std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 11 | Thorium-230 | 230Th | dpm/g | Lalou, Claude | Alpha spectrometry | |
| 12 | Thorium-230, standard deviation | 230Th std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 13 | Thorium-230/Uranium-234 ratio | 230Th/234U | Lalou, Claude | Alpha spectrometry | ||
| 14 | Thorium-230/Uranium-234 ratio, standard deviation | 230Th/234U std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 15 | Age, dated | Age dated | ka | Lalou, Claude | ||
| 16 | Age, dated standard deviation | Age dated std dev | ± | Lalou, Claude |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
76 data points
Data
| 1 Sample label | 2 Description | 3 232Th [mg/kg] | 4 232Th std dev [±] | 5 238U [mg/kg] | 6 238U std dev [±] | 7 (234U/238U) | 8 (234U/238U) std dev [±] | 9 234U [dpm/g] | 10 234U std dev [±] | 11 230Th [dpm/g] | 12 230Th std dev [±] | 13 230Th/234U | 14 230Th/234U std dev [±] | 15 Age dated [ka] | 16 Age dated std dev [±] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 70-509B-1-1,133-135 | Internal layer (1.5-mm thick) of a 2 to 2.5-mm thick deposit. It is made of todorokite and has very little insoluble residue. | 0.059 | 0.034 | 3.60 | 0.10 | 1.319 | 0.054 | 3.52 | 0.14 | 0.64 | 0.04 | 0.182 | 0.014 | 22.0 | 2.0 |
| 70-509B-1-2,105-106 | Internal layer (1.5-mm thick) of a 2 to 2.5-mm thick deposit. It is made of todorokite and has very little insoluble residue. | <0.040 | 6.10 | 0.40 | 1.200 | 0.071 | 5.39 | 0.34 | 1.79 | 0.08 | 0.332 | 0.026 | 43.5 | 4.3 | |
| 70-509B-2-1,12-13 | Represents the internal layer of a small plate, 2 to 3 mm thick, made of todorokite, it has a significant amount of insoluble residue after HCl(6N) + HNO3(7N) attack. | 1.99 | 0.15 | 1.340 | 0.110 | 1.96 | 0.13 | 0.75 | 0.07 | 0.384 | 0.045 | 51.0 | 8.0 | ||
| 70-509B-2-1,22-25 | Represents the 2-mm thick internal layer from a small plate, 3 to 4 mm thick. | <0.020 | 3.30 | 0.20 | 1.296 | 0.080 | 3.15 | 0.19 | 0.76 | 0.04 | 0.240 | 0.025 | 30.0 | 3.0 | |
| 70-509B-2-1,44-45 | Represents a complete plate, about 1.3 mm thick, characterized by the presence of iron and an insoluble fraction. | 0.170 | 0.030 | 2.99 | 0.18 | 1.132 | 0.074 | 2.49 | 0.15 | 0.89 | 0.04 | 0.359 | 0.027 | 48.0 | 4.5 |