Bezrukov, Panteleimon L; Andrushchenko, Polina F (1974): (Table 1, Page 1046-1047) Chemical composition of iron-manganese concretions from the Indian Ocean recovered by the R/V Vityaz and the R/V Ob [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.858779, Supplement to: Bezrukov, PL; Andrushchenko, PF (2009): Geochemistry of iron-manganese nodules from the Indian Ocean. International Geology Review, 16(9), 1044-1061, https://doi.org/10.1080/00206817409471781
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Abstract:
The data given in this and previous communications is insufficient to assess the quantitative role of these supplementary sources in the Indian Ocean, but they do not rule out their local significance. Elucidation of this problem requires further data on the characteristics of the composition and structure of nodules in various different metallogenic regions of the ocean floor. A study of the distribution of ore elements in nodules both depthwise and over the area of the floor together with compilation of the first schematic maps based on the results of analyses of samples from 54 stations) enables us to give a more precise empirical relation between the Mn, Fe, Ni, Cu, and Co contents in Indian Ocean nodules, the manganese ratio and the values of the oxidation potential, which vary regularly with depth. This in turn also enables us to confirm that formation of nodules completes the prolonged process of deposition of ore components from ocean waters, and the complex physico-chemical transformations of sediments in the bottom layer. Microprobe investigation of ore rinds revealed the nonuniform distribution of a num¬ber of elements within them, owing to the capacity of particles of hydrated oxides of manganese and iron to adsorb various elements. High concentration of individual elements is correlated with local sectors of the ore rinds, in which the presence of todorokite, in particular, has been noted. The appearance of this mineral apparently requires elevated Ca, Mg, Na, and K concentrations, because the stable crystalline phase of this specific mineral form of the psilomelane group may be formed when these cations are incorporated into a lattice of the delta-MnO2 type.
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: -27.225881 * Median Longitude: 92.167569 * South-bound Latitude: -61.050000 * West-bound Longitude: 54.860000 * North-bound Latitude: 7.487000 * East-bound Longitude: 113.833000
Date/Time Start: 1959-10-24T00:00:00 * Date/Time End: 1964-12-12T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
Ob12-865 * Latitude: -45.196667 * Longitude: 108.988333 * Elevation: -4430.0 m * Location: Indian Ocean * Campaign: Ob12 * Basis: Ob * Method/Device: Okean Grab (OKEAN)
Ob12-868 * Latitude: -51.066667 * Longitude: 103.821667 * Elevation: -2500.0 m * Location: Indian Ocean * Campaign: Ob12 * Basis: Ob * Method/Device: Okean Grab (OKEAN)
Ob12-873 * Latitude: -61.050000 * Longitude: 98.126667 * Elevation: -4420.0 m * Location: Indian Ocean * Campaign: Ob12 * Basis: Ob * Method/Device: Okean Grab (OKEAN)
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 | Bezrukov, Panteleimon L | |||
| 2 | Latitude of event | Latitude | Bezrukov, Panteleimon L | |||
| 3 | Longitude of event | Longitude | Bezrukov, Panteleimon L | |||
| 4 | Elevation of event | Elevation | m | Bezrukov, Panteleimon L | ||
| 5 | Method/Device of event | Method/Device | Bezrukov, Panteleimon L | |||
| 6 | Identification | ID | Bezrukov, Panteleimon L | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Bezrukov, Panteleimon L | Geocode | |
| 8 | Manganese | Mn | % | Bezrukov, Panteleimon L | Wet chemistry | |
| 9 | Iron | Fe | % | Bezrukov, Panteleimon L | Wet chemistry | |
| 10 | Nickel | Ni | % | Bezrukov, Panteleimon L | Wet chemistry | |
| 11 | Cobalt | Co | % | Bezrukov, Panteleimon L | Wet chemistry | |
| 12 | Copper | Cu | % | Bezrukov, Panteleimon L | Wet chemistry | |
| 13 | Deposit type | Deposit type | Bezrukov, Panteleimon L | |||
| 14 | Sediment type | Sediment | Bezrukov, Panteleimon L |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
105 data points