O współczesnych ruchach pionowych w Tatrach i na Podhalu
Abstract
ON PRESENT VERTICAL MOVEMENTS IN TATRA MTS. AND PODHALE
Summary
Analysis of results of repeated precise levelling of 1933, 1954 and 1974 enabled a preliminary evaluation of recent vertical movements in the Tatra Mts. and Podhale area, along a section that runs across main geotectonic units of this part of the Carpathians: Orawa-Nowy Targ Depression, Pieniny Klippen Belt, Podhale Synclinorium and northern border of the Tatra Mts. A southern part of the synclinorium was found to be probably slowly uplifted if referred to a bench-mark at Nowy Targ at a northern border of Podhale. The uplifting in Podhale is however small, close to a measuring error. It increases to about 0.4 mm a year at the edge of the Tatra Mts., in a marginal zone of the transversal elevation of Koszysta. A variation of movements deeper within the Tatra Mts. is to be analyzed in future.
Noted vertical movements show a step-like pattern. They comprise tectonic blocks of deep-seated origin as uniting in common dynamic behaviour fragments of different geotectonic elements. These blocks are partly connected with a transversal structural subdivision that in Podhale area has a greater whereas in the Tatra Mts. - a comparable influence on present dynamics as the principal longitudinal division. The elevation of Koszysta in the Tatra Mts., extended northwards under a flysch of Podhale, forms an element of a transversal subdivision.
A single correlation between a type of morphostructure and direction of present movements in its area was found not to occur, at least in some cases.
Summary
Analysis of results of repeated precise levelling of 1933, 1954 and 1974 enabled a preliminary evaluation of recent vertical movements in the Tatra Mts. and Podhale area, along a section that runs across main geotectonic units of this part of the Carpathians: Orawa-Nowy Targ Depression, Pieniny Klippen Belt, Podhale Synclinorium and northern border of the Tatra Mts. A southern part of the synclinorium was found to be probably slowly uplifted if referred to a bench-mark at Nowy Targ at a northern border of Podhale. The uplifting in Podhale is however small, close to a measuring error. It increases to about 0.4 mm a year at the edge of the Tatra Mts., in a marginal zone of the transversal elevation of Koszysta. A variation of movements deeper within the Tatra Mts. is to be analyzed in future.
Noted vertical movements show a step-like pattern. They comprise tectonic blocks of deep-seated origin as uniting in common dynamic behaviour fragments of different geotectonic elements. These blocks are partly connected with a transversal structural subdivision that in Podhale area has a greater whereas in the Tatra Mts. - a comparable influence on present dynamics as the principal longitudinal division. The elevation of Koszysta in the Tatra Mts., extended northwards under a flysch of Podhale, forms an element of a transversal subdivision.
A single correlation between a type of morphostructure and direction of present movements in its area was found not to occur, at least in some cases.