Nowe dane o tektonice Gór Pieprzowych
Abstract
NEW DATA ON TECTONICS OFTHE GÓRY PIEPRZOWE (CENTRAL POLAND)
Summary
The Pepper Mountains near Sandomierz (Fig. 1A) are situated at the eastern end of Palaeozoic massif of the Holy Cross Mts. Middle Cambrian sedimentary rocks, mainly black shales with thin quartzitic sandstone intercalations, are outcropped there. Stratigraphy and tectonics of this formation have not been completely examined yet. Bedding plane orientation measurements, carried out by the author, allowed to distinguish 5 structurally homogenous domains, separated by fault zones (Fig. 1B). Large part of minor folds probably originated in early diagenetic stage (Fig. 2 - 5) as an effect of flow folding (Fig. 4 - 5). Axes of these folds are directed WNW - ESE with WNW inclination. Axes of minor true folds (Fig. 6), as well as position of fault planes (Fig. 7) and attitude of strata (Fig. 1B and 8) indicate the same orientation of major tectonic structure. Large angle of its inclination is regarded as a result of rotation of Pepper Mountains block.
Summary
The Pepper Mountains near Sandomierz (Fig. 1A) are situated at the eastern end of Palaeozoic massif of the Holy Cross Mts. Middle Cambrian sedimentary rocks, mainly black shales with thin quartzitic sandstone intercalations, are outcropped there. Stratigraphy and tectonics of this formation have not been completely examined yet. Bedding plane orientation measurements, carried out by the author, allowed to distinguish 5 structurally homogenous domains, separated by fault zones (Fig. 1B). Large part of minor folds probably originated in early diagenetic stage (Fig. 2 - 5) as an effect of flow folding (Fig. 4 - 5). Axes of these folds are directed WNW - ESE with WNW inclination. Axes of minor true folds (Fig. 6), as well as position of fault planes (Fig. 7) and attitude of strata (Fig. 1B and 8) indicate the same orientation of major tectonic structure. Large angle of its inclination is regarded as a result of rotation of Pepper Mountains block.