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Conditions of formation of the iron-containing minerals, Hällefors silver mines, Bergslagen, Sweden

Published online by Cambridge University Press:  05 July 2018

A. W. Jasiński
A. W. Jasiński*
Affiliation:
Institute of Earth Sciences, Free University, De Boelelaan 1085, 1007 MC Amsterdam, The Netherlands
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Abstract

The Hällefors silver deposit is regarded as a volcanogenic-exhalative iron ore deposit with dispersed amounts of Ag-Pb-Zn (±Cu) which has undergone secondary remobilization leading to the concentration of sulphides and sulphosalts. Based on data from the iron oxides and sulphides, the sulphide-sulphosalt mineralization is believed to have been formed in two stages. The first is characterized by the ranges 573-473 K and 2.25–1.5 kbar, higher gradient of changes of log aS2 with temperature and mostly sulphide precipitation; the second by the ranges 473–443 K, lower gradient of changes of log aS2 and mainly sulphosalt deposition. Assuming the precipitation was from fluids and aqueous solutions, possible conditions of formation of some of the iron minerals have been determined.

Keywords

iron oxidesiron sulphidesHällefors mineBergslagenSweden
Type
Mineralogy
Information
Mineralogical Magazine , Volume 50 , Issue 355 , March 1986 , pp. 101 - 110
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1986

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Footnotes

*

Present address: Technical University of Wrocław, Institute of Inorganic Chemistry and Metallurgy of Rare Elements, 50-370 Wrocław, Wybrzeże Wyspiańskiego 27, Poland.

References

Baker, J.H., and de Groot, P.A. (1983) Contrib. Mineral. Petrol. 82, 119-30.CrossRefGoogle Scholar
Craig, J.R., and Barton, P.B. (1973) Econ. Geol. 68, 493-506.CrossRefGoogle Scholar
Garrels, R.M., and Christ, C.L. (1965) Solutions, Minerals and Equilibria, Harper and Row, 450 pp.Google Scholar
Helgeson, H.C. and Kirkham, D.H. (1974) Am. J. Sci. 274, 1089-261.CrossRefGoogle Scholar
Helgeson, H.C., Delany, J.M. Nesbitt, H.W. and Bird, D.K. (1978. Ibid. 278-A, 229 pp.Google Scholar
Hellingwerf, R.H. (1984) Econ. Geol. 79, 696-715.CrossRefGoogle Scholar
Hutchison, M.N., and Scott, S.D. (1980) Norges Geol. Unders. 360, 59-71.Google Scholar
Jasinski, A.W. (1983) Mineral. Mag. 47, 507-14.Google Scholar
Kalogeropulos, S.J. (1983) Neues Jahrb. Mineral. Monatsh.89-96.Google Scholar
Large, R.R. (1977) Econ. Geol. 72, 549-72.CrossRefGoogle Scholar
Moorman, A.G. Andriessen, P.A.M., Boelrijk, N.A.J., Hebeda, E.H., Oen, J.S., Priem, H.N.A., Verdurmen, E.A.T., Verschure, R.H., and Wiklander, U. (1982) Geol. For. Fork. 104, 1-9.Google Scholar
Nugteren, H.W. (1978) The silver mines of Hdllefors, Central Sweden. M.Sc. thesis, Free University of Amsterdam.Google Scholar
Nugteren, H.W.and Zakrzewski, M.A. (1984) Can. Mineral, in press.Google Scholar
Oen, J.S., Helmers, H., Verschure, R.H., and Wiklander, U. (1982) Geol. Rund. 71, 182-94.CrossRefGoogle Scholar
Robie, R.A., Hemingway, B.S. and Fischer, J.R. (1978) U.S. Geol. Survey Bull.no. 1452, 456 pp.Google Scholar
Seyfried, W.E., and Mottle, M.J. (1982) Geochim. Cosmochim. Acta. 46, 985-1002.CrossRefGoogle Scholar
Sundius, N. (1923) Sver. Geol. Undersökning,ser. C, 312, 354 pp.CrossRefGoogle Scholar
Sundius, N., Parwel, A., and Rajandi, B. (1966. Ibid. 614, 20 pp.Google Scholar
Tegengren, F. (1924. Ibid. ser. Ca, 17, 406 pp.Google Scholar
Vaughan, D.J., and Craig, J.R. (1978) Mineral chemistry of metal sulfides, Cambr. Univ. Press, 493 pp.Google Scholar
Welin, E., Wiklander, U., and Kähr, A.M. (1981) Geol. För. För. 102, 269-72.CrossRefGoogle Scholar
Zakrzewski, M.A. (1982) Geol. Rund. 71, 195-205.CrossRefGoogle Scholar