Soil radon (222RN) concentration as a tool for major tectonic lines determination in the Polish part of the Carpathian mountains
Year: 2017
Type: conference-paper
Abstract: One of the essential elements of a petroleum system in the Carpathian mountains and a place where circulation process of fluids and bitumen occurs are major fault zones.These zones tend to be reservoir seals or reservoir migration paths.Recognition of fault type, its strike and locking depth, as well as tectonic system regime, are crucial element for seismic interpretation process.Radon concentration measurements (RAD7 portable spectrometer device) in soil was tested as a tool to verify regional importance and precise localization of the most important tectonic zones in the Polish part of the Carpathians.Measurements ware conducted in the areas with well documented tectonic system by means of cartographic field works: in the Lanckorona -Żegocina zone, the Bieszczady melange zone in the Grajcarek tectonic zone, in the Pieniny Klippen Belt and in the area of Węglówkathe northern border-zone of the Central Carpathian's Depression.The obtained results allowed not only for precise localisation of analysed fault zone, but it was also possible to define their hierarchy in Carpathian orogenic wedge.Obtained data show enormous differences of radon exhalation intensity between fault zones and surrounding regions.Our studies showed, that the Grajcarek tectonic zone is much more important migration pathway than normal fault separating Podhale Flysch from the Pieniny Klippen Belt region, as it was fought before.The Grajcarek fault zone, similarly to the Bieszczady melange, seems to be major tectonic zone responsible for creation of the huge tectonic melange of the Pieniny Klippen Belt.
Language: English
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3085653126