Acta Geodynamica et Geomaterialia

Title: PRESENT-DAY STRESS ORIENTATION AND TECTONIC PULSES REGISTERED IN THE CAVES OF THE SLOVENSKY KRAS MTS. (SOUTH-EASTERN SLOVAKIA)
Authors: Briestenský Miloš, Hochmuth Zdenko, Littva Juraj,Hók Jozef,Dobrovič Roman,Stemberk Josef, Petro Ľubomír and Bella Pavel
DOI: 10.13168/AGG.2018.0007
Journal: Acta Geodynamica et Geomaterialia, Vol. 15, No. 2 (190), Prague 2018
Full Text: PDF file (4.2 MB)
Keywords: neotectonics, microdisplacement monitoring, cavitonics, recent geodynamics
Abstract: The fault displacement monitoring network EU-TecNet was established to define microdisplacements across faults in the territory of Central Europe (www.tecnet.cz) using three-dimensional optical-mechanical extensometers. The results of long-term neotectonic activity obtained from two caves localized in the eastern part of the Slovenský kras Mts. (SE Slovakia) show generally NE-SW oriented dilatation. This orientation is in a good accordance with the orogen-parallel extension monitored in the Western Carpathians. Differing short-lasting trends were distinguished in 2011–2012 and 2013–2015, which supports the significance of the tectonic pulse at the end of 2012 and the beginning of 2013. Moreover, simultaneous short-lasting faulting occurred at both sites under the transtensional tectonic regime, where the principal maximum compressional axis operated in a NW-SE direction (σ1). The observed results were compared to data from monitoring points in distant areas of the European plate.