Barnes, Steven S (1967): Chemical composition of ocean manganese nodules from the Pacific Ocean using different techniques [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.865060, Supplement to: Barnes, SS (1967): The formation of oceanic ferromanganese nodules (Ph.D. dissertation). University of California, San Diego, 118 pp
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Abstract:
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.
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: -8.657938 * Median Longitude: -141.508030 * South-bound Latitude: -52.180000 * West-bound Longitude: 74.983000 * North-bound Latitude: 35.433000 * East-bound Longitude: -11.417000
Date/Time Start: 1875-12-14T00:00:00 * Date/Time End: 1964-08-11T00:00:00
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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)
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6 datasets
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Datasets listed in this publication series
- Barnes, SS (1967): Chemical composition of ocean manganese nodules from the Pacific Ocean using Atomic Absorption Spectroscopy (AAS). https://doi.org/10.1594/PANGAEA.865043
- Barnes, SS (1967): Chemical composition of ocean manganese nodules from the Pacific Ocean using Neutron Activation Analysis (NAA). https://doi.org/10.1594/PANGAEA.865054
- Barnes, SS (1967): Chemical composition of ocean manganese nodules from the Pacific Ocean using Quantum emission spectrography (QES). https://doi.org/10.1594/PANGAEA.865056
- Barnes, SS (1967): Chemical composition of ocean manganese nodules from the Pacific Ocean using Wet Chemistry. https://doi.org/10.1594/PANGAEA.865057
- Barnes, SS (1967): Chemical composition of ocean manganese nodules from the Pacific Ocean using Xenon X-Ray emission spectroscopy. https://doi.org/10.1594/PANGAEA.865058
- Barnes, SS (1967): Chemical composition of ocean manganese nodules from the Pacific Ocean using X-Ray fluorescence (XRF). https://doi.org/10.1594/PANGAEA.865059