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Gulbrandsen, R A; Reeser, D W (1969): Permian manganese nodules near Dillon, Montana. PANGAEA, https://doi.org/10.1594/PANGAEA.854650, Supplement to: Gulbrandsen, RA; Reeser, DW (1969): An occurrence of Permian manganese nodules near Dillon, Montana. In: Geological Survey Research 1969, Chapter C, U.S. Geological Survey Professional Paper; http://pubs.usgs.gov/pp/0650c/report.pdf, 650C, 49-57, hdl:10013/epic.46181.d003

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Abstract:
Concentrically ringed manganese nodules, similar in form to many found on modern ocean and sea floors, occur in a very fine grained argillaceous sandstone bed of the Permian Park City Formation near Dillon, Montana. They are enriched in many rare elements and contain us much as 2.5 percent zinc, l.3 percent nickel, and 0.22 percent cobalt. The manganese minerals are chalcophanite and todorokite. The nodules probably formed in a shallow marine oxidizing environment on the western side of the Permian sedimentary basin. The occurrence of an appreciable amount of fluorite in the bed suggests that the water was saline.
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, https://doi.org/10.7289/V52Z13FT
Further details:
Figure 3. Permian manganese nodules
Figure 4. Sawed halves of Permian manganese nodules, showing concentric growth rings
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):
NOAA and MMS Marine Minerals Geochemical Database (NOAA-MMS)
Coverage:
Latitude: 44.681803 * Longitude: -112.745511
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Gulbrandsen, RA; Reeser, DW (1969): (Table 2, page C54) Chemical composition, in weight percent, of manganese nodules embedded in the Permian sandstone beds near Dillon, Montana. https://doi.org/10.1594/PANGAEA.854649
  2. Gulbrandsen, RA; Reeser, DW (1969): Description of manganese nodules collected in a sandstone formation near Dillon, Montana. https://doi.org/10.1594/PANGAEA.854648