DEWOŃSKA SERIA WĘGLANOWA W OTWORZE WIERTNICZYM TROJANOWICE 2

Anna Tomaś

Abstract


DEVONIAN CARBONATE SUCCESSION IN THE TROJANOWICE 2 BOREHOLE

Abstract. The Devonian carbonate succession was examined in the Trojanowice 2 borehole located northwest of Kraków. It is represented by dolomites with infrequent intrastratal breccias and a micrite limestone layer. The dolomites contain traces of primary structures, grains (bioclasts, peloids, intraclasts and ooids) and relics of micritic matter. They formed as a result of early dolomitization of micrite limestones deposited in a shallow, quiescent and probably isolated marine environment. The dolomite succession from the Trojanowice 2 borehole has been assigned to the Eifelian–Lower Givetian based on the similarity to the dolomites known from other boreholes in the Upper Silesian and Małopolska blocks.


Keywords


seria węglanowa, mikrofacje, dewon, blok górnośląski.

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