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  • 1
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    Geochemical composition of a representative collection of manganese nodules and slabs collected in the Western Pacific (1974)
    PANGAEA
    In:  Supplement to: Shima, Makoto; Okada, Akihiko (1974): Study on the managanese nodule (VIII) Inhomogeneous chemical distribution of manganese nodules (in Japanese). Scientific Report of the Institute of Physical and Chemical Research, 50, 151-158, hdl:10013/epic.46490.d001
    Details
    Publication Date: 2023-08-28
    Description: Chemical analyses were performed on seveteen 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-SiO2. 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.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 2
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    Description and chemical composition of manganese nodules collected in the Pacific Ocean (1970)
    PANGAEA
    In:  Supplement to: Okada, Akihiko; Shima, Makoto (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
    Details
    Publication Date: 2023-08-28
    Description: 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.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 3
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    (Table 1, page 152) Description of manganese nodules collected in the Pacific Ocean (1970)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Keywords: Date/Time of event; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Event label; Hakuho-Maru; KH67-5-34; KH67-5-40; KH-68-3; KH68-3-9-7; KH68-3-9-9; Latitude of event; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; OKAD01; OKAD02; OKAD03; OKAD04; OKAD05; OKAD06; Pacific Ocean; Position; Quantity of deposit; Sample ID; Size; Substrate type; Vityaz (ex-Mars); Vityaz-43; VITYAZ5968-10
    Type: Dataset
    Format: text/tab-separated-values, 61 data points
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  • 4
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    (Table 2, page 156), The comparison of heavy elements in manganese nodules (1973)
    PANGAEA
    In:  Supplement to: Yabuki, H; Shima, Makoto (1973): Uranium and other heavy elements in deep sea sediments coexisting with manganese nodules. Scientific Papers of the Institute of Physical and Chemical Research, Institute of Physical and Chemical Research of Japan, 67(3), 155-156, hdl:10013/epic.46131.d001
    Details
    Publication Date: 2023-08-28
    Description: The comparison of Mn/Fe, Co/Ni, Co/Fe, Ni/Mn, and Cu/Fe ratios is presented and it is noticed that Co/Ni and Ni/Mn ratios of nodules fairly coincide with those of coexisting sediments. This agreement suggests that Mn, Ni, and Co are accumulated in both nodules and sediments at about the same rates. According to the calculation of Somayajulu et al. similar consideration is also applicable to Cu. Results are, however, implying that Cu co-precipitates with Fe, rather than Mn.
    Keywords: Atomic absorption spectrometry (AAS); CHMAII-17; CHMAII-9; CM-17; CM-9; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; Dredge; DRG; Event label; Induced fission-track; Insoluble residue; Iron; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Position; Sample ID; Sediment type; Uranium; Wet chemistry
    Type: Dataset
    Format: text/tab-separated-values, 22 data points
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  • 5
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    (Table III, page 159), Trace elements chemical composition for a representative collection of manganese nodules collected in the Western Pacific (1974)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Keywords: Cerium; Chiyoda Maru No. 2; CLB; CM-II_1970; Continuous line bucket; Date/Time of event; DEPTH, sediment/rock; Elevation of event; Emission spectrometry; Europium; Event label; Lanthanum; Latitude of event; Longitude of event; Lutetium; Neodymium; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; OKSH-CM-13-A; OKSH-CM-16-A; OKSH-CM-17-A; OKSH-OC-1; OKSH-TK-1; Pacific Ocean; Samarium; Sample ID; Terbium; Ytterbium
    Type: Dataset
    Format: text/tab-separated-values, 45 data points
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  • 6
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    (Table II, page 158) Main elements chemical composition for a representative collection of manganese nodules and slabs collected in the Western Pacific (1974)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Keywords: Bismuth; Chiyoda Maru No. 2; CLB; CM-II_1970; Cobalt; Continuous line bucket; Copper; Date/Time of event; Deposit type; DEPTH, sediment/rock; Elevation of event; Emission spectrometry; Event label; Insoluble residue; Iron; Latitude of event; Lead; Longitude of event; Loss on ignition; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; OKSH-12-2-A; OKSH-15-3-10; OKSH-15-3-7; OKSH-20-3-10; OKSH-20-3-26; OKSH-20-3-7; OKSH-CM-10-A; OKSH-CM-11-A; OKSH-CM-13-A; OKSH-CM-14-A; OKSH-CM-15-A; OKSH-CM-16-A; OKSH-CM-17-A; OKSH-CM-17-B; OKSH-CM-18-A; OKSH-OC-1; Pacific Ocean; Sample ID; Size; Titanium; Vanadium; Wet chemistry; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 231 data points
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  • 7
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    (Table 2, page 152) Chemical composition of manganese nodules collected in the Pacific Ocean (1970)
    PANGAEA
    Details
    Publication Date: 2023-09-25
    Keywords: Cobalt; Copper; Date/Time of event; DEPTH, sediment/rock; Dredge; DRG; Elevation of event; Event label; Hakuho-Maru; Insoluble residue; Iron; KH67-5-34; KH67-5-40; KH-68-3; KH68-3-9-7; KH68-3-9-9; Latitude of event; Longitude of event; Loss on ignition; Manganese; Name; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; OKAD01; OKAD02; OKAD03; OKAD04; OKAD05; OKAD06; Pacific Ocean; Sample ID; Size; Vityaz (ex-Mars); Vityaz-43; VITYAZ5968-10; Wet chemistry
    Type: Dataset
    Format: text/tab-separated-values, 140 data points
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  • 8
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    Bulk chemical composition of manganese deposits fom the Pacific and Indian oceans (2023)
    PANGAEA
    Details
    Publication Date: 2023-11-23
    Description: Manganese nodules retrieved by early cruises of the R/V Hakuho Maru in the Pacific Ocean and the R/V Umikata Maru in the Indian Ocean have been chemically analysed. Samples were dried at 300°C in order to remove volatile water components and were then treated with 3N-hydrochloric acid and a few drops of 30% hydrogen peroxide. The acid soluble part was then submitted to atomic absorption spectrophotometry to determine the composition of Mn, Fe, Ni, Cu and Co.
    Keywords: Atomic absorption spectrometry (AAS); Cobalt; Copper; Core; CORE; Deposit type; DEPTH, sediment/rock; Elevation of event; Event label; Geochemistry; Identification; IIOE; Indian Ocean; Insoluble residue; Iron; KH67-5-40; Latitude of event; Longitude of event; Loss on ignition; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; OKAD02; OKAD06; Pacific Ocean; sediment; Station 18 (UMI-18); UMIND1; UMIND1-IC8; Umitaka Maru; Wet chemistry
    Type: Dataset
    Format: text/tab-separated-values, 37 data points
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  • 9
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    Chemical composition in Pb and Zn of manganese deposits from the Pacific Ocean (2023)
    PANGAEA
    Details
    Publication Date: 2023-11-23
    Description: Manganese nodules retrieved by early cruises of the R/V Hakuho Maru in the Pacific Ocean and the R/V Umikata Maru in the Indian Ocean have been chemically analysed for their content in Pb and Zn. Samples were dried at 300°C in order to remove volatile water components and were then treated with 3N-hydrochloric acid and a few drops of 30% hydrogen peroxide. The acid soluble part was then submitted to atomic absorption spectrophotometry to determine the composition of Pb and Zn. This information supplements that published on the same samples in Okada, A. & Shima, M. (1970).
    Keywords: Atomic absorption spectrometry (AAS); Core; CORE; Deposit type; DEPTH, sediment/rock; Dredge; DRG; Elevation of event; Event label; Geochemistry; Hakuho-Maru; Identification; IIOE; Indian Ocean; KH67-5-34; KH67-5-40; KH-68-3; KH68-3-9-7; KH68-3-9-9; Latitude of event; Lead; Longitude of event; manganese micronodule; manganese nodule; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; OKAD01; OKAD02; OKAD05; OKAD06; Pacific Ocean; sediment; Station 18 (UMI-18); UMIND1; UMIND1-IC8; Umitaka Maru; Vityaz (ex-Mars); Vityaz-43; VITYAZ5968-10; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 60 data points
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  • 10
    Electronic Resource
    Electronic Resource
    Study on the manganese nodule V. Thermal studies of the iron-manganese phase (1972)
    Springer
    Journal of oceanography 28 (1972), S. 39-47 
    Details
    ISSN: 1573-868X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The thermal phase transformation of the iron-manganese phase of the Pacific Ocean manganese nodules were studied by the differential thermal and X-ray diffraction methods. X-ray powder patterns of the heated samples at the temperature of 600°C to 1000°C show the occurrence of hematite, bixbyite and cubic and tetragonal (Fe, Mn)3O4. Bixbyite produced by the heat treatment of the iron-manganese phase gives an abnormal X-ray pattern in comparison with the standard sample of bixbyite. Cubic (Fe, Mn)3O4 is produced not only by the reaction of bixbyite with hematite over 900°C, but also at the lower temperature, such as 600°C. While, tetragonal (Fe, Mn)3O4 is a reaction product of cubic (Fe, Mn)3O4 with bixbyite over 900°C in the case of manganese rich nodules. The species and quantities of the products after the heat treatment are assumed to be mostly influenced by the relative contents of iron and manganese in the manganese nodule.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02109719
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    Paper (German National Licenses)
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