| _version_ | 1867171037114793984 |
|---|---|
| author | Lalou, Claude |
| author_facet | Lalou, Claude |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Scoriaceous Mn crust fragments on travertine-like nontronite deposit were retrieved near two hydrothermal vents while surveying the rift valley of the Mid-Atlantic Ridge using the diving saucer "CYANA". They have been examined with SEM and with an EDAX (X-ray energy dispersive analysis) apparatus coupled to SEM. Fifteen successive thin layers were taken from the upper surface downward. They were totally dissolved in HCl-HF-HClO4 and spiked with 232U and 228Th as yield tracers. Thin sources of purified U::and Th were prepared and counted by alpha spectrometry. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_956428 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Radiochemical data for manganese crust sample CYP-74-26-12 Lalou, Claude Alpha spectrometry; CY-74-26-12; Deposit type; DEPTH, sediment/rock; Distance; Distance, maximum; Distance, minimum; Elevation of event; Event label; FAMOUS_06-74; FAMOUS74; Geochemistry; GRAB_subCyana; Grab, on Cyana [Submersible]; Identification; Latitude of event; Le Noroit; Longitude of event; manganese micronodule; manganese nodule; Mid-Atlantic Ridge; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Sediment; Thorium-230; Thorium-230, standard deviation; Thorium-230/Uranium-234 ratio; Thorium-230/Uranium-234 ratio, standard deviation; Thorium-232; Thorium-232, standard deviation; Uranium-234/Uranium-238 ratio; Uranium-234/Uranium-238 ratio, standard deviation; Uranium-238; Uranium-238, standard deviation; Uranium-238/Thorium-232 ratio; Uranium-238/Thorium-232 ratio, standard deviation Scoriaceous Mn crust fragments on travertine-like nontronite deposit were retrieved near two hydrothermal vents while surveying the rift valley of the Mid-Atlantic Ridge using the diving saucer "CYANA". They have been examined with SEM and with an EDAX (X-ray energy dispersive analysis) apparatus coupled to SEM. Fifteen successive thin layers were taken from the upper surface downward. They were totally dissolved in HCl-HF-HClO4 and spiked with 232U and 228Th as yield tracers. Thin sources of purified U::and Th were prepared and counted by alpha spectrometry. |
| title | Radiochemical data for manganese crust sample CYP-74-26-12 |
| topic | Alpha spectrometry; CY-74-26-12; Deposit type; DEPTH, sediment/rock; Distance; Distance, maximum; Distance, minimum; Elevation of event; Event label; FAMOUS_06-74; FAMOUS74; Geochemistry; GRAB_subCyana; Grab, on Cyana [Submersible]; Identification; Latitude of event; Le Noroit; Longitude of event; manganese micronodule; manganese nodule; Mid-Atlantic Ridge; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Sediment; Thorium-230; Thorium-230, standard deviation; Thorium-230/Uranium-234 ratio; Thorium-230/Uranium-234 ratio, standard deviation; Thorium-232; Thorium-232, standard deviation; Uranium-234/Uranium-238 ratio; Uranium-234/Uranium-238 ratio, standard deviation; Uranium-238; Uranium-238, standard deviation; Uranium-238/Thorium-232 ratio; Uranium-238/Thorium-232 ratio, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.956428 |