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Stop 2: Zeolitized pyroclastics of the Donje Jesenje

Lower Miocene pyroclastic rocks that occur in Donje Jesenje quarry were probably deposited in marine environment. Vertical alternation of vitroclastic, vitrocrystalloclastic and vitrocrystallolithoclastic types of tuffs is visible in the quarry. Tuffs contain different alteration products of volcanic glass (zeolites, clay minerals, SiO2 phases, authigenic feldspars). which are the result of burial diagenesis.

pyroclastics, Donje Jesenje, alteration products, zeolites, clay minerals, volcanic glass, tuffs, Hrvatsko zagorje, Vučji Jarek member, Macelj formation

nije evidentirano