Chemical composition of phyllosilicates, amphiboles and carbonates from hydrothermally altered granitoid and metamorphic rocks in the Pezinok–Kolársky vrch Hill Sb–Au deposit, Western Carpathians, Slovakia

Three aleration zones are recognized in hydrothermally altered granitoid and metamorphic rocks at the Pezinok–Kolársky vrch Hill Sb–Au deposit, Malé Karpaty Mts., Western Carpathians: the outermost chlorite zone, muscovite zone and the innermost illite–carbonate zone for granitoid rocks and the outermost chlorite zone, illite–carbonate zone and the innermost carbonate–sulphides zone for metamorphic rocks.

Chlorite replacing biotite (phlogophite and annite) and amphibole (hornblende, tschermakite and edenite). Fe²⁺-clinochlore is a dominant type of chlorite. Muscovite and illite–carbonate / carbonate–sulphides zones are superimposed on the chlorite zone. Hydrothermal phengitic muscovite replaces plagioclase and chlorite. In the innermost zone, carbonates and sulphides become abundant, muscovite and feldspars are replaced by illite. Carbonates (ankerite and dolomite) replacing amphibole and plagioclase.