Lei, G; Boström, Kurt (1995): Annotated record of the detailed examination of Mn deposits from R/V Xiang Yang Hong 16 stations (1983) in the Pacific Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.860777, Supplement to: Lei, G; Boström, K (1995): Mineralogical control on transition metal distributions in marine manganese nodules. Marine Geology, 123(3-4), 253-261, https://doi.org/10.1016/0025-3227(95)00022-Q
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Abstract:
Electron microprobe and X-ray diffraction data for north Pacific manganese nodules reveal that the transition metal distributions are controlled by the mineralogy. Microlayers rich in 10Å-manganates generally have high Mn/Fe ratios and positive correlations between Ni, Cu and Mn, and between Co and Fe. Microlayers rich in vernadite, on the other hand, show low Mn/Fe ratios, and Co, Ni and Cu all show positive correlations with Mn. The 10Å-manganates form mainly in porewaters with high Mn/Fe ratios. The Ni2+ and Cu2+ ions are post-depositionally incorporated into the interlayers of the manganates, whereas Co3+ is substituted for Fe3+ in ferric oxyhydroxides. In seawater with a low Mn/Fe ratio, on the other hand, the adsorption of positively charged ferric oxyhydroxides on negatively charged [MnO6] octahedral layers suppresses the growth of 10Å-manganates, enhancing the formation of vernadite. Positively charged hydroxides of Co3+, Ni2+ and Cu2+ are also adsorbed on the [MnO6] layers. These mechanisms of mineral formation and metal uptake are corroborated by data for other oceanic non-hydrothermal manganese nodules and crusts.
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: 11.219596 * Median Longitude: -167.952096 * South-bound Latitude: 8.213160 * West-bound Longitude: -175.023160 * North-bound Latitude: 19.203160 * East-bound Longitude: -157.973830
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
XYH16-83-M6 * Latitude: 9.885330 * Longitude: -167.379000 * Elevation: -189.0 m * Location: Pacific Ocean * Campaign: XYH16-83 * Basis: Xiang Yang Hong * Method/Device: Dredge (DRG)
XYH16-83-M10 * Latitude: 9.944830 * Longitude: -168.856660 * Elevation: -5227.0 m * Location: Pacific Ocean * Campaign: XYH16-83 * Basis: Xiang Yang Hong * Method/Device: Dredge (DRG)
XYH16-83-M12 * Latitude: 8.851500 * Longitude: -175.023160 * Elevation: -5932.0 m * Location: Pacific Ocean * Campaign: XYH16-83 * Basis: Xiang Yang Hong * Method/Device: Dredge (DRG)
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 | Event label | Event | Lei, G | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Lei, G | Geocode | |
| 3 | Position | Position | Lei, G | Visual description | ||
| 4 | Deposit type | Deposit type | Lei, G | |||
| 5 | Quantity of deposit | Quantity | Lei, G | |||
| 6 | Sediment type | Sediment | Lei, G | |||
| 7 | Comment | Comment | Lei, G |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
25 data points