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Late Miocene to recent structural development of the Polish segment of the outer Carpthians in the light of structural, geomorphic, break-out and Palaeomagnetic data

Zuchiewicz W., Tokarski A., Jarosiński M., Marton E.

Reports on Geodesy

2000

z. 7/53

107-121

This paper presents the available pieces of evidence on neotectonic structural evolution of the Polish segment of the Outer Carpathians. During the Late Neogene, structural development was largely controlled by normal faulting and block uplift. However, there are also indications of compressional stress setting, at least during the Pliocene and particularly within the medial and eastern parts of the belt. It follows that during Late Neogene times the stress arrangement could have been differentiated depending on time and the position in the belt. In the Quaternary, in turn, structural development has been mainly controlled by compressional stress arrangement, with q, oriented roughly perpendicular to the belt. Furthermore, the vertical differentiation of the S(Hmx) indicates a two-tier arrangement of the stress fied. On the other hand, in intramontane basins and in frontal parts of nappes and larger slices, localised normal faulting took place. Finally, the intensity of tectonic activity within the belt has been changing throughout the Quaternary. It appears, therefore, that the Quaternary stress pattern within the Polish segment of the Outer Carpathians has been differentiated depending on depth, position in the belt and time.