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Molengraaff, G A F (1915): Manganese nodules mesozoic deep-sea deposits off some Indonesian Islands. PANGAEA, https://doi.org/10.1594/PANGAEA.854768, Supplement to: Molengraaff, GAF (1915): On the occurrence of nodules of manganese in mesozoic deep-sea deposits from Borneo, Timor, and Rotti, their significance and mode of formation. Koninklijke Nederlandse Akademie van Weteschappen (Proceedings of the Royal Netherlands Academy of Arts and Sciences,Series B Physical Sciences; http://www.dwc.knaw.nl/DL/publications/PU00012518.pdf, 18(15), 415-430, hdl:10013/epic.46203.d001

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Abstract:
Concretions of manganese have been discovered by the geological expedition to the islands of the Timor group in 1910—1912 in triassic and jurassic deep-sea deposits, on the Island of Timor, and also well developed in similar jurassic deposits on the island of Rotti, and previously, in 1894, the author noticed them in abysmal deposits of the pre-cretaceous probably jurassic Danau formation, occurring in West and East Borneo. On the island of Rotti nodules of manganese were found in several localities in siliceous limestones, marls, siliceous and calcareous clayshales along with concretions and nodules of chert of jurassic age, full of tests of radiolaria.
Source data set:
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
Coverage:
Median Latitude: -10.734940 * Median Longitude: 123.102757 * South-bound Latitude: -10.773710 * West-bound Longitude: 123.083970 * North-bound Latitude: -10.696170 * East-bound Longitude: 123.121544
Size:
2 datasets

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