Sackett, William M (1966): (Table 1, pages 646) Uranium, thorium and protactinium analyses of selected manganese nodules from the Atlantic and Pacific oceans [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.871886, Supplement to: Sackett, WM (1966): Manganese Nodules: Thorium-230: Protactinium-231 Ratios. Science, 154(3749), 646-647, https://doi.org/10.1126/science.154.3749.646
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Published: 1966 (exact date unknown) • DOI registered: 2017-03-08
Abstract:
The Th230/Pa231 activity ratio in 7 of 11 manganese nodules is less than 10.8, the theoretical production ratio of activities in the ocean. This finding indicates difierential accumulation of these nuclides in authigenic deposits of manganese-iron oxide.
Source:
Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT
Further details:
Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN
Project(s):
Coverage:
Median Latitude: 13.416643 * Median Longitude: -115.839358 * South-bound Latitude: -41.983000 * West-bound Longitude: -171.000000 * North-bound Latitude: 40.300000 * East-bound Longitude: -56.150000
Date/Time Start: 1950-09-02T00:00:00 * Date/Time End: 1965-08-20T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
AT266-40 (A-266/D-40) * Latitude: 30.883000 * Longitude: -78.783000 * Date/Time: 1961-07-13T00:00:00 * Elevation: -836.0 m * Location: Atlantic Ocean * Campaign: AT26601 * Basis: Atlantis (1931) * Method/Device: Dredge (DRG)
CH36-6RD * Latitude: 36.700000 * Longitude: -67.983000 * Date/Time: 1963-07-08T00:00:00 * Elevation: -4327.0 m * Location: Atlantic Ocean * Campaign: CH03601 * Basis: Chain * Method/Device: Dredge (DRG)
DWBD1 * Latitude: 21.450000 * Longitude: -126.717000 * Date/Time: 1957-10-25T00:00:00 * Elevation: -4300.0 m * Location: Pacific Ocean * Campaign: DOWNWIND-B1 (DNWB0ABD) * Basis: Spencer F. Baird * Method/Device: Dredge (DRG)
Comment:
The analytical procedures for carrier-free separation of uranium, thorium, and protactinium from manganese nodules make use of 232U, 234Th, and 233Pa tracers to monitor yield. Extraction of proactinium uses diisobutyl carbinol extraction and that of uranium and thorium is perforemed using cation exchange techniques.
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 | Event label | Event | Sackett, William M | |||
| 2 | Identification | ID | Sackett, William M | |||
| 3 | Sample code/label | Sample label | Sackett, William M | |||
| 4 | DEPTH, sediment/rock | Depth sed | m | Sackett, William M | Geocode | |
| 5 | Thorium-232 | 232Th | mg/kg | Sackett, William M | Alpha spectrometry | |
| 6 | Thorium-232, standard deviation | 232Th std dev | ± | Sackett, William M | Alpha spectrometry | |
| 7 | Uranium-238 | 238U | mg/kg | Sackett, William M | Alpha spectrometry | |
| 8 | Uranium-238, standard deviation | 238U std dev | ± | Sackett, William M | Alpha spectrometry | |
| 9 | Thorium-230 | 230Th | dpm/g | Sackett, William M | Alpha spectrometry | |
| 10 | Thorium-230, standard deviation | 230Th std dev | ± | Sackett, William M | Alpha spectrometry | |
| 11 | Protactinium-231 | 231Pa | dpm/g | Sackett, William M | Alpha spectrometry | |
| 12 | Protactinium-231, standard deviation | 231Pa std dev | ± | Sackett, William M | Alpha spectrometry | |
| 13 | Deposit type | Deposit type | Sackett, William M | |||
| 14 | Description | Description | Sackett, William M |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
124 data points
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Datasets with similar metadata
- Mo, T; Suttle, CA; Sackett, WM (1973): (Table 1, pages 646) Uranium analyses of selected manganese nodules from the Atlantic and Pacific oceans and Lake Charlotte, Canada. https://doi.org/10.1594/PANGAEA.872386
- Ehrlich, AM (1968): Rare earth chemical composition of manganese nodules and ferromanganese crusts from the Atlantic and Pacific oceans. https://doi.org/10.1594/PANGAEA.874997
- Harriss, RC (2023): Mercury contents of selected marine manganese nodules. https://doi.org/10.1594/PANGAEA.954835