Scott, Martha R; Scott, Robert B; Rona, Peter A; Butler, Louis W; Nalwalk, Andrew J (1974): (Table 1b, Page 356), Radiometric data from manganese crusts; sample 13-21 from the median valley of the Mid-Atlantic Ridge [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.848724, In supplement to: Scott, MR et al. (1974): Rapidly accumulating manganese deposit from the Median Valley of the Mid-Atlantic Ridge. Geophysical Research Letters, 1(8), 355-358, https://doi.org/10.1029/GL001i008p00355
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Project(s):
Coverage:
Latitude: 26.133300 * Longitude: -44.750000
Minimum DISTANCE: 0.025 cm * Maximum DISTANCE: 0.381 cm
Event(s):
TAG1972-13 (T3-72D 253-13) * Latitude: 26.133300 * Longitude: -44.750000 * Elevation: -3080.0 m * Location: Atlantic Ocean * Campaign: TAG1972 (Trans-Atlantic Geotraverse 1972) * Basis: Discoverer (1966) * Method/Device: Dredge, chain bag (DRG_C)
Comment:
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Scott, Martha R | |||
| 2 | DISTANCE | Distance | cm | Scott, Martha R | Geocode | |
| 3 | Distance, minimum | Dist min | mm | Scott, Martha R | ||
| 4 | Distance, maximum | Dist max | mm | Scott, Martha R | ||
| 5 | Uranium | U | mg/kg | Scott, Martha R | ||
| 6 | Uranium, standard deviation | U std dev | ± | Scott, Martha R | ||
| 7 | Uranium-234/Uranium-238 activity ratio | (234U/238U) | Scott, Martha R | |||
| 8 | Uranium-234/Uranium-238 activity ratio, standard deviation | (234U/238U) std dev | ± | Scott, Martha R | ||
| 9 | Thorium-232 | 232Th | mg/kg | Scott, Martha R | ||
| 10 | Thorium-232, standard deviation | 232Th std dev | ± | Scott, Martha R | ||
| 11 | Thorium-230/Uranium-234 ratio | 230Th/234U | Scott, Martha R | |||
| 12 | Thorium-230/Uranium-234 ratio, standard deviation | 230Th/234U std dev | ± | Scott, Martha R | ||
| 13 | Protactinium-231/Uranium-235 ratio | 231Pa/235U | Scott, Martha R | |||
| 14 | Protactinium-231/Uranium-235 ratio, standard deviation | 231Pa/235U std dev | ± | Scott, Martha R | ||
| 15 | Age, dated | Age dated | ka | Scott, Martha R | Age, 230Thorium | Maximum age calculated with the assumption that all the Th230 has grown in from the uranium in the sample |
| 16 | Age, dated standard deviation | Age dated std dev | ± | Scott, Martha R | Age, 230Thorium | |
| 17 | Age, dated | Age dated | ka | Scott, Martha R | Age, 231Protactinium | Maximum age calculated with the assumption that all the Pa231 has grown in from the uranium in the sample |
| 18 | Age, dated standard deviation | Age dated std dev | ± | Scott, Martha R | Age, 231Protactinium |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
81 data points