Manifestations of hydrotectonics in Zn-Pb mineralization at Trzebionka mine (Silesian-Cracow zinc-lead ore district, Poland)

Wojciech Jaroszewski

Abstract


Mesostructures of zones of zinc-lead arc mineralization in Trzebionka mine suggest a forced flow of mineralizing fluids, stimulated by tectonic stresses, instead of the broadly accepted hydrothermal/karst mechanism. The joint action of tectonic activity and abnormal fluid pressures was a cause of hydraulic fracturing of host rocks which in its turn was opening the ways for further penetration of the fluid and for precipitation of its mineral content during phases of pressure drop.


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