Abstract
Deep sea manganese nodules are considered as important natural resources for the future because of their Ni, Cu and Co contents. Their different shapes cannot be correlated clearly with their chemical composition. Surface constitution, however, can be associated with the metal contents. A classification of the nodules is suggested on the basis of these results. The iron content of the nodules strikingly shows relations to the physical properties (e.g. density and porosity). The method of density-measurement is the reason for this covariance. The investigation of freeze-dried nodular substance does not give this result. The Fe-rich nodules lose more hydration water than the Fe-poor ones during heat drying. The reason for this effect is the different crystallinity, respectively the particle size. The mean particle size is calculated on the basis of geometrical models. The X-ray-diffraction analysis proves the variation of crystallinity in connection with the Fe-content, too. The internal nodular textures also show characteristic distinctions.
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References
Barrer, R. M., Bultitude, F. W., Kerr, I. S.: Some properties of, and a structural scheme for, the harmotome zeolites. J. Chem. Soc. 1521–1528 (1959)
Bricker, O.: Some stability relations in the system Mn-O2-H2O at 25°C and one atmosphere total pressure. Amer. Min. 50, 1296–1354 (1965)
Burns, R. G., Brown, B. A.: Nucleation and mineralogical controls on the composition of manganese nodules. Papers from a conference on ferromanganese deposits on the ocean floor, NSF-IDOE, 51–62 (1972)
Burns, R. G., Fuerstenau, D. W.: Electron probe determination of interelement relationships in manganese nodules. Amer. Min. 51, 895–902 (1966)
Buser, W., Grütter, A.: Über die Natur der Manganknollen. Schweiz. miner. petrogr. Mitt. 36, 49–62 (1956)
Friedrich, G., Rosner, B., Demirsoy, S.: Erzmikroskopische und mikroanalytische Untersuchungen an Manganerzkonkretionen aus dem Pazifischen Ozean. Mineral. Deposita (Berl.) 4, 289–307 (1969)
Goldberg, E. D.: Marine geochemistry. I. Chemical scavangers of the sea. J. Geol. 62, 249–265 (1954)
Halbach, P.: Vorkommen, Zusammensetzung und Genese Fe- und Mn-haltiger Erze in Süßwasserseen Finnlands — ein Beitrag zur Geochemie und Entstehung konkretionärer Bodenbildungen. Habilitationsschrift, 195 p. Clausthal-Zellerfeld 1972
Halbach, P.: Vergleich stofflicher Eigenschaften limnischer und mariner Manganknollen. Erzmetall 27, 161–168 (1974)
Heye, D., Beiersdorf, H.: Radioaktive und magnetische Untersuchungen an Manganknollen zur Ermittlung der Wachstumsgeschwindigkeit bzw. zur Altersbestimmung. Z. f. Geoph. 39, 703–726 (1973)
Horn, D. R., Horn, B. M., Delach, M. N.: Copper and Nickel content of ocean ferromanganese deposits and their relation to properties of the substrate. Papers on the origin and distribution of manganese nodules in the Pacific and prospects for exploration, 77–83, Honululu 1973
Lüschow, H.-M., Kraft, G.: Nichtdispersive Röntgenspektrometrie an Manganknollen aus dem Pazifischen Ozean. Meerestechnik 4, 200–204 (1973)
Meyer, K.: Surface sediment — and manganese nodule facies, encountered on RV “Valdivia” cruises 1972/73. Meerestechnik 4, 196–199 (1973)
Neff, H.: Grundlagen und Anwendung der Röntgen-Feinstruktur-Analyse, 447 p. München: R. Oldenbourg 1959
Ostwald, J., Frazer, F. W.: Chemical and mineralogical investigations on deep sea manganese nodules from the southern ocean. Mineral. Deposita (Berl.) 8, 303–311 (1973)
Özkara, M.: Vergleichende Untersuchungen zur Dichte und Porosität limnischer und mariner Erzkonkretionen. Diplomarbeit, 89 p. Clausthal-Zellerfeld 1974
Raab, W.: Physical and chemical features of Pacific deep sea manganese nodules and their implication to the genesis of nodules. Papers from a conference on ferromanganese deposits on the ocean floor, NSF-IDOE, 31–49 (1972)
Schultze-Westrum, H.-H.: The station and cruise pattern of RV “Valdivia” in relation to the variability of manganese nodule occurrences. Meerestechnik 4, 163–167 (1973)
Seibold, E.: Rezente submarine Metallogenese. Geol. Rdsch. 62, 641–684 (1973)
Sorem, K. R.: Manganese nodules as indicators of long-term variations in sea floor environment. Papers on the origin and distribution of manganese nodules in the Pacific and prospects for exploration, 151–164, Honululu 1973
Straczek, J. A., Horen, A., Ross, M., Warshaw, C. M.: Studies of the manganese oxydes IV: Todorokite. Amer. Min. 45, 1174–1184 (1960)
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Dedicated to Prof. Dr.-Ing. H. Borchert, Clausthal-Zellerfeld, on the occasion of his 70th birthday
This research was kindly promoted by a subsidy on the part of the Deutsche Forschungsgemeinschaft.
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Halbach, P., Özkara, M. & Hense, J. The influence of metal content on the physical and mineralogical properties of pelagic manganese nodules. Mineral. Deposita 10, 397–411 (1975). https://doi.org/10.1007/BF00207897
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DOI: https://doi.org/10.1007/BF00207897