Okada, Akihiko; Shima, Makoto (1970): Description and chemical composition of manganese nodules collected in the Pacific Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.857572, Supplement to: Okada, A; Shima, M (1970): Study on the manganese nodule (in Japanese). Journal of Oceanographical Society of Japan, 26(3), 151-158, https://www.jstage.jst.go.jp/article/kaiyou1942/26/3/26_3_151/_article
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Published: 1970 (exact date unknown) • DOI registered: 2016-02-26
Abstract:
Chemical and X-ray analyses were performed on the fifteen manganese nodules collected from the Pacific Ocean floor. The results were discussed compared with the previous data on the manganese nodules. Minerals were found to be todorokite, delta-MnO2 and other silicates, montmorillonite, illite, phillipsite and alpha-Si02. Average composition shows that copper is concentrated on the deep sea nodules more than the shallow ones, and that the todorokite rich nodules contain more copper and nickel than the delta-MnO2 rich ones. The analyses of fresh water iron-manganese precipitates by bacterial activity suggest that biological process is one of the important factors on the genesis of the sedimentary iron-manganese deposits, in¬cluding the manganese nodule.
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: 26.607222 * Median Longitude: -176.658889 * South-bound Latitude: 9.278330 * West-bound Longitude: 143.411670 * North-bound Latitude: 44.616670 * East-bound Longitude: -121.000000
Date/Time Start: 1968-01-12T00:00:00 * Date/Time End: 1968-08-03T00:00:00
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Okada, A; Shima, M (1970): (Table 1, page 152) Description of manganese nodules collected in the Pacific Ocean. https://doi.org/10.1594/PANGAEA.857570
- Okada, A; Shima, M (1970): (Table 2, page 152) Chemical composition of manganese nodules collected in the Pacific Ocean. https://doi.org/10.1594/PANGAEA.857571