ABSTRACT
The special chemical composition of the inclusion fluids of the sparry magnesite mineralizations in Paleozoic series of the Eastern Alps and the Carpathians are testament to hypersaline fluids, extremely fractionated by evaporation processes accounting for dolomitzation and magnesitization. This seepage-reflux model involves the generation of theses fluids during the Permoskythian through evaporation and the downward movement of the dense brines through Paleozoic series and basement rocks. Where these fluids came into contact with underlying Paleozoic carbonates, irregular bodies of sparry magnesites were formed, typically showing dolomitic alteration haloes.
