Moore, Willard S; Ku, Teh-Lung; MacDougall, J Douglas; Burns, Virginia Mee; Burns, Roger G; Dymond, Jack R; Lyle, Mitchell W; Piper, David Z (2023): Radiochemical data for a manganese nodule sample from the MN7601-PLEIADES campaign (R/V Melville) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.959682
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2023-06-26 • DOI registered: 2023-07-28
Abstract:
Using radiochemical methods, the authors have measured the distribution of uranium, thorium, radium, polonium and protactinium isotopes from the top and bottom sides of the a manganese nodule from Station 20 of the PLEIADES Mn7601 campaign. This "apple" shaped nodule (6.5x3.0 cm) was laying on a bed of siliceous ooze (see illustrations). Successive thin layers of the nodule were carefully scraped from the surface of the measured area with a sharp surgical blade. All samples reduced to powder were air-dried at 110°C for at least two hours before analysis. The relative gross alpha activities from each layer were assayed by Alpha spectrometry using a thick-source counting in a scintillation counter.
Related to:
Moore, Willard S; Ku, Teh-Lung; MacDougall, J Douglas; Burns, Virginia Mee; Burns, Roger G; Dymond, Jack R; Lyle, Mitchell W; Piper, David Z (1981): Fluxes of metals to a manganese nodule radiochemical, chemical, structural, and mineralogical studies. Earth and Planetary Science Letters, 52(1), 151-171, https://doi.org/10.1016/0012-821X(81)90217-X
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:
Latitude: 11.072000 * Longitude: -140.047000
Date/Time Start: 1976-08-27T00:00:00 * Date/Time End: 1976-08-27T00:00:00
Minimum Elevation: -4722.0 m * Maximum Elevation: -4722.0 m
Event(s):
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.
This dataset represents the digitized Table 1-2, pp. 154 of the related publication.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Moore, Willard S | |||
| 2 | Latitude of event | Latitude | Moore, Willard S | |||
| 3 | Longitude of event | Longitude | Moore, Willard S | |||
| 4 | Elevation of event | Elevation | m | Moore, Willard S | ||
| 5 | Identification | ID | Moore, Willard S | |||
| 6 | Deposit type | Deposit type | Moore, Willard S | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Moore, Willard S | Geocode | |
| 8 | DISTANCE | Distance | cm | Moore, Willard S | Geocode – from surface | |
| 9 | Distance, minimum | Dist min | mm | Moore, Willard S | ||
| 10 | Distance, maximum | Dist max | mm | Moore, Willard S | ||
| 11 | Sample type | Samp type | Moore, Willard S | Part analysed | ||
| 12 | Uranium-238 | 238U | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 13 | Uranium-234 | 234U | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 14 | Thorium-230 | 230Th | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 15 | Radium-226 | 226Ra | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 16 | Polonium-210 | 210Po | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 17 | Thorium-232 | 232Th | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 18 | Thorium-228 | 228Th | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 19 | Protactinium-231 | 231Pa | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 20 | Thorium-230 excess | 230Th xs | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 21 | Thorium-230 excess, standard deviation | 230Th xs std dev | ± | Moore, Willard S | Alpha spectrometry | |
| 22 | Protactinium-231 excess | 231Pa xs | dpm/g | Moore, Willard S | Alpha spectrometry | |
| 23 | Protactinium-231 excess, standard deviation | 231Pa xs std dev | ± | Moore, Willard S | Alpha spectrometry |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
218 data points
Download Data
Datasets with similar metadata
- Moore, WS; Ku, T-L; MacDougall, JD et al. (2023): Chemical composition of a manganese nodule sample from the MN7601-PLEIADES campaign (R/V Melville). https://doi.org/10.1594/PANGAEA.959699
- Moore, WS; Ku, T-L; MacDougall, JD et al. (2023): Microprobe analysis of a manganese nodule sample from the MN7601-PLEIADES campaign (R/V Melville). https://doi.org/10.1594/PANGAEA.959693
- Andrews, JE; Friedrich, GHW (2022): Main chemical elements concentration in manganese nodules retrieved in the northeast equatorial Pacific during the R/V Valdivia VA-13/2 campaign. https://doi.org/10.1594/PANGAEA.942741
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