Geological structure of the Trzebnica Hills in the light of new investigation

Jarosław Winnicki


Over 100-m elevation of Cainozoic sediments (mostly of Tertiary age) in the Trzebnica Hills was the effect of tectonic movement of rock masses within the Fore-Sudetic Monocline. Differences in heights are considerably high and locally reach 70 m. Glaciotectonic deformations during consecutive glaciations additionally contributed to substantial complication of inner structure. The main stage of glaciotectonic deformations as well as tectonic uplifting took place in the time of the Sanian Glaciation. Only one (and the same) glacial horizon covers the surface of the Trzebnica Hills and their southern foreland. It is a common idea that in the Silesian Lowland the glacial horizon represents a ground moraine of the Odranian Glaciation. Underlying sandy-gravely sediments should be connected with deglaciation period of this glaciation.

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