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Murray, John; Philippi, E (1908): Description and chemical composition of manganese deposits during the deep-sea expedition of the streamer Valdivia in 1898-1899. PANGAEA, https://doi.org/10.1594/PANGAEA.857957, Supplement to: Murray, J; Philippi, E (1908): Die Grundproben der "Deutschen Tiefsee-Expedition". In: Chun, C (1908): Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer "Valdivia" 1898-1899, G. Fischer, Jena, 10(4), 129 pp, hdl:10013/epic.46815.d001

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Abstract:
This monograph forms the fourth part of the tenth volume of the scientific results of the voyage of the German exploring ship Valdivia in the Atlantic and Indian Oceans, made during the years 1898-1899. These volumes are published under the editorship of Prof. Chun, the zoologist of Leipzig, who was leader of the expedition ; and Prof. E. Philippi with the cooperation of Sir John Murray. The nature of the materials brought up at various points during the voyage is well illustrated by a series of plates, similar to those accompanying the Challenger volumes. Among the concretions from the Agulhas Bank were found phosphatic nodules containing 33 per cent, of calcium carbonate, 28 of calcium phosphate, 14.6 of calcium sulphate, and 4.8 of magnesium carbonate, with some ferric oxide, alumina, and silica. These nodules were dredged at a depth of 155 metres. Off the coast of Namibia, a large quantity of manganese nodules were also dredged. Their chemical analysis performed at the Mineralogical Institute of the University Jena show similar composition as the nodules recovered by the "Challenger" at station 253 in the Pacific Ocean.
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
Coverage:
Median Latitude: -20.218775 * Median Longitude: 20.502713 * South-bound Latitude: -61.753191 * West-bound Longitude: -18.966645 * North-bound Latitude: 22.383566 * East-bound Longitude: 99.458344
Date/Time Start: 1898-08-26T00:00:00 * Date/Time End: 1899-02-20T00:00:00
Size:
2 datasets

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