Genesis of Sphalerite Rhythmites from the Upper-Silesian Zinc-Lead Deposits — A Discussion

  • M. Sass-Gustkiewicz
  • K. Mochnacka
Part of the Special Publication of the Society for Geology Applied to Mineral Deposits book series (MINERAL DEPOS., volume 10)


Based on the data collected from the Pomorzany Zn-Pb mine, the authors present a formation model of “rhythmically banded sphalerite ores” (“rhythmites”) known from the Mississippi Valley-type (MVT) Zn-Pb deposits. The origin of these ores is controversial and the discussion reflects the differences in syngenetic versus epigenetic interpretation. Meso-, macro- and microscopic observations lead to the conclusion that the ores are of metasomatic origin and resulted from two processes: (1) replacement contemporaneous with dissolution; (2) cavity filling. The genetic model explains the transition from primary depositional rhythmicity (abab) to a superimposed, non-depositional, bipolar one (abcdcba).


Cavity Filling Mississippi Valley Type Metasomatic Replacement Metasomatic Origin Sheet Cavity 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • M. Sass-Gustkiewicz
    • 1
  • K. Mochnacka
    • 1
  1. 1.Institute of Geology and Mineral DepositsUniversity of Mining and Metallurgy, al.KrakowPoland

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