Application of a petrographic method to identification of the till floes

Ryszard Zabielski


One presented the results of the petrographic and mineralogical studies of tills from the environs of Sompolno (Kujawy). On the basis of the petrographic composition of gravels, composition of heavy minerals as well as grain size and calcium carbonate content one distinguished in tills sill lithostratigraphic units. Interpretation of the calculated petrographic coefficients led to the identification of the floes of the older tills, occurring within the younger tills. An attempt, was made to explain the mechanism of incorporation.

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