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Pachadzhanov, D N; Bandurkin, G A; Migdisov, Areg A; Girin, Yury P (1963): Annotated record and chemical composition of manganese nodules from station VITYAZ 4575, Indian Ocean. PANGAEA,, Supplement to: Pachadzhanov, DN et al. (1963): Data on the geochemistry of manganese nodules from the Indian Ocean. Geokhimiya, 5, 493-499, hdl:10013/epic.46169.d001

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Analyses are given for the core and outer colliform shell of a manganese nodule collected at a depth of 5000 m in the Indian Ocean, and for the red clay that encloses the nodules. Trace elements determined include rare earths, Nb, Ta, Th, and V. The cores of the nodules were once composed of basaltic rock, but now are phillipsite and nontronite. The outer shell is composed of manganite, with admixed quartz, phillipsite, and some geothite. The correlations established between the redox potentials and the concentration coefficients for 12 elements indicate that Eh plays a greater role in the formation of the manganiferous shells than coprecipitation properties.
Source data set:
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,
Further details:
Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA,
Latitude: -29.716700 * Longitude: 89.883300
Date/Time Start: 1959-12-16T00:00:00 * Date/Time End: 1959-12-16T00:00:00
VITYAZ4575 * Latitude: -29.716700 * Longitude: 89.883300 * Date/Time: 1959-12-16T00:00:00 * Elevation: -2810.0 m * Location: Indian Ocean * Campaign: Vityaz-31 * Basis: Vityaz (ex-Mars) * Method/Device: Gravity corer (GC)
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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 propriatory 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.
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