Stages of dynamometamorphism | Typical ore minerals |
I Stage. Mainly cataclastic facies. Deformational transformations of initial rocks minerals | Ilmenite (FeTiO3), geikrimite (MgTiO3), rutile (TiO2), magnetite (Fe3O4), pyrite (FeS2), |
II Stage. Cataclastic and mylonit facies. Deformational transformation of initial rocks minerals and I stage cataclasites | Hematite (Fe2O3), iocite (FeO), tenorit (CuO), zincite (ZnO), plattnerite (PbO2), magnetoplumbite (PbFe124O19), anatase (TiO2), galena (PbS), sphalerite (ZnS), boulangerite (Pb2Sb4S11), bournonite (CuPbSbS3), covellite (CuS), chalcocite (Cu2S), emplectite (CuBiS2), bornite (Cu5FeS4), tetrahedrite (Cu12Sb4S13), antimonite (Sb2S3), bismuthine (Bi2S3), argentite (Ag2S), stroymerite (AgCuS), penzhinite (AgS), pyrargyrite (Ag3SbS3), matildite (AgBiS2), native Pb, Ag, Au |
III Stage. Mylonite facies with the mechanometasomatites formation of quartz, carbonate-quartz, and sulfide composition | Plattnerite, massicot (PbO), galena (PbS), sphalerite (ZnS), pyrite (FeS2), chalcopyrite (CuFeS2), bornite, eskebornite (CuFeSe2), covellite (CuS), chalcocite, penzhinite, cencosite (ZnSO4), smithsonite (ZnCO3), cerussite (PbCO3), native Pb, Ag, Au, intermetallics, Ag-Mo, Ag-Pb-Mo |
IV stage. Mechanometasomatites mainly with aqueous minerals | Volborthite (Cu[VO4]2∙3H2O), tangeite (CaCuVO4OH), motramite (PbCuVO4OH), chlorargyrite (cerargyrite) (AgCl), Ag2SO4∙5H2O, Ag(OH)2, szomolnokite (FeSO4∙H2O), goethite (HFeO2), anglesite (PbSO4), zincoside, nanophases of native noble metals |