Structural-kinematic formation conditions of the Dudergof structure development (south-east margin of the Baltic shield)
| Autor: | S. Yu. Kolodyazhnyi |
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| Jazyk: | ruština |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 5, Pp 8-17 (2016) |
| Druh dokumentu: | article |
| ISSN: | 0016-7762 2618-8708 |
| Popis: | Dudergof heights and deformed Paleozoic cover rocks spatially related to them are located to the South of Saint-Petersburg within Baltic-Ladoga monocline. These elevations make up the straight forms of relief and correspond to the cores of anticlines which are often examined as a glaciotectonic morphostructures. Structural researches show that Dudergof structure is spatially and genetically related to the intersection joint of tectonic zones oriented in East-North-East and South-North directions. It had been formed for a long time, probably, since the Late Caledonian time up to the neotectonic activation stage. Deformations developed in the conditions of the reverse - strike slip mode and periodic appearance of kinematic inversions. The horizontal compression was oriented in North-West direction on certain stages, and in North-East direction - on the others. In the development of the Dudergof structure glaciotectonic factor had a second-rate significance giving rise to the appearance of the minor south-vergent thrusts. |
| Databáze: | Directory of Open Access Journals |
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