Stress analysis of the fault slips data recorded within the Dědičná štola Gallery in the Rychlebské hory Mts., NE part of the Bohemian Massif
Abstract
This work presents the results of 3-D movements of faults occurring in the Dědičná štola Gallery in the Rychlebské hory Mts. during the period between 2014 and 2017. The faults were monitored by TM-71 extensometers.
The detected fault slip is nonlinear and is affected by shor t transient periods of acceleration. One dominant and a series of minor transient fault slip accelerations were recognised.
The recorded accelerations were induced by switching two compressional stress/strain states - WNW-ESE to NW-SE compression corresponding to the stress field of the Western European stress domain and to NNE-SSW corresponding to the stress field of the NW part of the Carpathian stress domain. The extensional state, oriented NW-SE, corresponding to gravitational spreading due to th e Rychlebské hory Mts. uplift, was recognised.