Lalou, Claude; Ku, Teh-Lung; Brichet, Evelyne; Poupeau, G; Romary, P (1979): (Table 3, page 265), Radiochemical data for layers of zones A through D of the TECHNO crust [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.855051, In supplement to: Lalou, C et al. (1979): TECHNO encrustation, Part I: Radiometric studies. In: Lalou C. & Sorensen, B.M. (Eds), La Genèse Des Nodules de Manganèse. Centre Océanologique de Bretagne, Gif-sur-Yvette, France, 261-269, hdl:10013/epic.46220.d031
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Project(s):
Coverage:
Latitude: -13.090000 * Longitude: -148.620000
Date/Time Start: 1973-11-03T00:00:00 * Date/Time End: 1973-11-03T00:00:00
Minimum DISTANCE: 37.500 cm * Maximum DISTANCE: 125.000 cm
Event(s):
NX10-CL * Latitude: -13.090000 * Longitude: -148.620000 * Date/Time: 1973-11-03T00:00:00 * Elevation: -4020.0 m * Location: Pacific Ocean * Campaign: NIXO10 (TECHNO 07) * Basis: Marara * Method/Device: Dredge (DRG)
Comment:
Layers D to A layers adjacent to layer E going increasingly deeper into the crust as indicated in Fig 2.
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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 | Identification | ID | Lalou, Claude | |||
| 2 | DISTANCE | Distance | cm | Lalou, Claude | Geocode | |
| 3 | Distance, minimum | Dist min | mm | Lalou, Claude | ||
| 4 | Distance, maximum | Dist max | mm | Lalou, Claude | ||
| 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 | 234U | dpm/g | Lalou, Claude | Alpha spectrometry | |
| 8 | Uranium-234, standard deviation | 234U std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 9 | Uranium-234/Uranium-238 activity ratio | (234U/238U) | Lalou, Claude | Calculated | ||
| 10 | Uranium-234/Uranium-238 activity ratio, standard deviation | (234U/238U) std dev | ± | Lalou, Claude | Calculated | |
| 11 | Thorium-230 excess | 230Th xs | dpm/g | Lalou, Claude | Alpha spectrometry | |
| 12 | Thorium-230 excess, standard deviation | 230Th xs std dev | ± | Lalou, Claude | Alpha spectrometry |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
44 data points
Data
| 1 ID | 2 Distance [cm] | 3 Dist min [mm] | 4 Dist max [mm] | 5 238U [mg/kg] | 6 238U std dev [±] | 7 234U [dpm/g] | 8 234U std dev [±] | 9 (234U/238U) | 10 (234U/238U) std dev [±] | 11 230Th xs [dpm/g] | 12 230Th xs std dev [±] |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NX10-CL-1-D | 37.500 | 20.00 | 55.00 | 10.5 | 0.4 | 7.1 | 0.3 | 0.917 | 0.039 | 7.3 | 0.3 |
| NX10-CL-1-C | 67.500 | 55.00 | 80.00 | 10.9 | 0.5 | 7.3 | 0.4 | 0.913 | 0.049 | 7.8 | 0.3 |
| NX10-CL-1-B | 95.000 | 80.00 | 110.00 | 7.3 | 0.2 | 6.2 | 0.2 | 1.147 | 0.039 | 6.2 | 0.3 |
| NX10-CL-1-A | 125.000 | 110.00 | 140.00 | 4.1 | 0.3 | 2.9 | 0.2 | 0.960 | 0.075 | 3.1 | 0.3 |