Advertisement

Electron Microprobe Investigation of the Dolomitization and Its Relationship with the Sulfide Mineralizations in the Polymetallic Deposits Confined to the Triassic Calcareous Sediments in the Western Balkans

  • J. Minčeva-Stefanova
Conference paper

Abstract

The studies cover the two types of dolomites in the region of the deposits: the bedded dolomites and the metasomatic dolomites in bodies of irregular and varying shape. The second type of dolomites is characteristic for the ore deposits. They also occur outside the area of the ore deposits at varying distances from them, being always confined to fault dislocations.

For the metasomatic dolomitization, evidence of a repeated, polygeneration formation of the dolomite metacrystals is found everywhere. At certain stages, the formation of metacrystals involved iron which, in relatively higher amounts, resulting in the formation of ferroan dolomite and ankerite zones, is characteristic only of the dolomite associated directly with the sulfide mineralizations.

The bedded dolomites in immediate contact with the sulfide mineralizations are only slightly recrystallized.

Keywords

Iron Content Dolomite Crystal Mineral Paragenesis Sulfide Impregnation Seventh Generation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Amstutz GC (1982) Preface and outlook. In: Amstutz GC, El Goresy A, Frenzel G, Kluth C, Moh G, Wauschkuhn A, Zimmermann RA (eds) Ore genesis — The state of the art. Springer, Berlin Heidelberg New York, pp V-XGoogle Scholar
  2. Minčeva-Stefanova J (1961) Mineralogie und Entstehung der Blei-Zink-Kupfer-Lagerstätte Sedmochislenitsi im Westbalkan. Tray Geol Bulgarie Sér Géochem Gites Métallif Non-Métallif 2: 157–251 (in Bulgarian with German summary)Google Scholar
  3. Minčeva-Stefanova J (1962) Über die alpidischen Polymetallvererzungen vom Typ Sedmocislenici im Westbalkan. Bull Str Dimitrov Inst Geol 10: 57–71 (in Bulgarian with German summary)Google Scholar
  4. Minčeva-Stefanova J (1970) Manganese carbonates of a dolomite structure-type and the depth of formation of hydrothermal ore deposits. Problems of hydrothermal ore deposition. Int Union Geol Sci A No 2. Schweizerbart, Stuttgart, pp 198–203Google Scholar
  5. Minčeva-Stefanova J (1972) Mineral composition and origin of the stratiform polymetallic ore deposits in the Balkanides compared with the stratiform lead-zinc deposits of the Alps. Proc 2nd Int Symp Mineral Deposits of the Alps (ISMIDA). Ljubljana, pp 301–312Google Scholar
  6. Minčeva-Stefanova J (1978) Introducing a unified principle in the construction of diagrams for the sequence of mineral deposition. Rew Bulg Geol Soc 39 No 2: 185–192Google Scholar
  7. Minčeva-Stefanova J, Gorova M (1967) Mischbarkeit und Nomenklatur der Karbonate mit Dolomittyp-Struktur. Bull Geol Inst Geochem Mineral Petrogr 16: 95–118 (in Bulgarian with German summary)Google Scholar
  8. Tronkov D, Engeva M, Trifonova E (1965) Stratigraphie des Triassystems in Nordwestbulgarien. Bull Str Dimitrov Inst Geol 14: 261–291 (in Bulgarian with German summary)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • J. Minčeva-Stefanova
    • 1
  1. 1.Geological Institute at the Bulgarian Academy of SciencesSofiaBulgaria

Personalised recommendations