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Mineralizacja gipsowa w warstwach hieroglifowych antykliny Jankowej (Zachodnie Karpaty Zewnętrzne) – wstępne wyniki badań

Gąsienica Aleksander, Kozłowski Adam, Drzewicki Wojciech

Przegląd Geologiczny

2023

Vol. 71, nr 4

169--173

Sulfate mineralization occurs in almost all lithostratigraphic beds of the Carpathians and has been described for at least the last century. While carrying out cartographic studies near Bobowa, a new site of gypsum mineralization was discovered within the hieroglyphic beds of the Jankowa anticline. The gypsum crystals found there reach up to several centimetres in length and, so far, no similar ones have been described in the Carpathian flysch deposits. Gypsum from Jankowa occurs in the form of intergrowth and twinnings, rosettes and larkspurs, and vein fillings.

Poligeniczna mineralizacja żyłowa w skałach krystalicznych suwalskiego masywu anortozytowego (NE Polska)

Gawęda A., Wiszniewska J.

Przegląd Geologiczny

2005

Vol. 53, nr 4

327--332

The detailed research studies of selected secondary polyphase carbonate-sulphate mineralisations infilling fissures and fractures has been carried out in the crystalline rocks of the Suwałki Anorthosite Massif (SAM). This massif, emplaced within the Mesoproterozoic rapakivi-type Mazury Complex (ca. 1.56 Ga), has been subjected to several tectono-hydrothermal events resulting in extensive mineralization in several stages. The deformation regime changed from the ductile compressional to brittle extentional. Both ductile and brittle shear zones enabled the mineralisation precipitation in the sequence C_1 (dolo-mite) or C_1 (calcite) + chlorite = pseudotachylyte C_2 (calcite) = C_3 (calcite) + smectite = Qtz_1 = C_3 (continued) = Brt = Qtz_2 = Anh. The results of mineralogical and stable isotope studies indicate that the vein mineralization originated from the mixed hydrothermal to hypergenic fluids with admixture of marine-type sulphate waters during the last stage of mineralization.