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Isaeva, Alexandra B (1967): Description and chemical composition of manganese nodules sampled during the R/V "Vityaz" Expedition Vityaz-35. PANGAEA,, Supplement to: Isaeva, AB (1967): Chemical composition of ferromanganese nodules of the Indian ocean (in Russian). Lithology and Mineral Resources, 3, 43-56, hdl:10013/epic.46141.d001

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This paper presents data on the chemical composition of iron-manganese nodules and associated sediments collected during the 35th voyage of the R/V "Vityaz" in 1962. The samples were made available to the author by Prof, P. L. Bezrukov. Data on the general distribution of manganese nodules at the bottom of the Indian Ocean were already given by P. L. Bezrukov (1962, 1963). Here the author analyzed the geochemistry of nodules samples from seven stations and four samples from the associated sediments. The analysis separates the outer layer of nodules from their apparent internal core.
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,
Median Latitude: -21.008952 * Median Longitude: 93.685237 * South-bound Latitude: -32.800000 * West-bound Longitude: 79.133333 * North-bound Latitude: -11.916667 * East-bound Longitude: 108.316667
Date/Time Start: 1962-07-28T00:00:00 * Date/Time End: 1962-10-12T00:00:00
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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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