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  • NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS  (5)
  • PANGAEA  (5)
  • American Chemical Society (ACS)
  • American Institute of Physics (AIP)
  • 1965-1969  (5)
  • 1967  (5)
Collection
Keywords
Publisher
  • PANGAEA  (5)
  • American Chemical Society (ACS)
  • American Institute of Physics (AIP)
Years
  • 1965-1969  (5)
Year
  • 1
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    Unknown
    Chemical composition of ocean manganese nodules from the Pacific Ocean (1967)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Description: This collection includes data on the chemical composition of ocean manganese nodules from the Pacific Ocean obtained with different methods.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Chemical composition of ocean manganese nodules from the Pacific Ocean using different techniques (1967)
    PANGAEA
    In:  Supplement to: Barnes, Steven S (1967): The formation of oceanic ferromanganese nodules (Ph.D. dissertation). University of California, San Diego, 118 pp
    Details
    Publication Date: 2023-08-28
    Description: Mineralogical and chemical analyses performed on 67 ferromanganese nodules from widely varying locations and depths within the marine environment of the Pacific Ocean indicate that the minor element composition is controlled by the mineralogy and that the formation of the mineral phases is depth dependent. The pressure effect upon the thermodynamics or kinetics of mineral formation is suggested as the governing agent in the depth dependence of the mineralogy. The minor elements, Pb and Co, appear concentrated in the dMnO2 phase, whereas Cu and Ni are more or less excluded from this phase. In the manganites, Pb and Co are relatively low in concentration, whereas Cu and Ni are spread over a wide range of values. The oxidation of Pb and Co from divalent forms in sea water to higher states can explain their concentration in the dMnO2 phase.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 6 datasets
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    DATA PANGAEA
  • 3
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    Description and chemical composition of manganese nodules sampled during the R/V "Vityaz" Expedition Vityaz-35 (1967)
    PANGAEA
    In:  Supplement to: Isaeva, Alexandra B (1967): Chemical composition of ferromanganese nodules of the Indian ocean (in Russian). Lithology and Mineral Resources, 3, 43-56, hdl:10013/epic.46141.d001
    Details
    Publication Date: 2023-08-28
    Description: 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.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 4
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    Potassium and Argon data for dating the core, and radiochemical data of a series of measurements made on layers inside various manganese nodules from the Pacific Ocean (1967)
    PANGAEA
    In:  Supplement to: Barnes, Steven S; Dymond, Jack R (1967): Rates of accumulation of ferro-manganese nodules. Nature, 213(5082), 1218-1219, https://doi.org/10.1038/2131218a0
    Details
    Publication Date: 2023-08-28
    Description: Although various models have been proposed to explain the origin of manganese nodules (see Goldberg and Arrhenius), two major hypotheses have received extensive attention. One concept suggests that manganese nodules form as the result of interaction between submarine volcanic products and sea water. The common association of manganese nodules with volcanic materials constitutes the main evidence for this theory. The second theory involves a direct inorganic precipitation of manganese from sea water. Goldberg and Arrhenius view this process as the oxidation of divalent manganese to tetravalent manganese by oxygen under the catalytic action of particulate iron hydroxides. Manganese accumulation by the Goldberg and Arrhenius theory would be a relatively slow and comparatively steady process, whereas Bonatti and Nayudu believe manganese nodule formation takes place subsequent to the eruption of submarine volcanoes by the acidic leaching of lava.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 5
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    Geochemistry of manganese nodules from the N.W. Indian Ocean (1967)
    PANGAEA
    In:  Supplement to: Cronan, David S; Tooms, J S (1967): Geochemistry of manganese nodules from the N.W. Indian Ocean. Deep Sea Research and Oceanographic Abstracts, 14(2), 239-249, https://doi.org/10.1016/0011-7471(67)90009-5
    Details
    Publication Date: 2023-08-28
    Description: Manganese nodules collected from four sites in the N.W. Indian Ocean by R.R.S. Discovery have been analysed for a range of elements. At two of the sites, samples were collected from two morphological populations, at one of these sites each population being a distinct chemical population also. In addition, considerable differences have been observed in the composition of morphologically similar modules from sites a few miles apart. The information obtained is of significance in any consideration of the genesis of the nodules and could have practical implications in the event that manganese nodules become a potential source of manganese and other metallic elements.
    Keywords: NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
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