RECENT HORIZONTAL MOVEMENTS OF THE EARTH'S CRUST WITHIN THE VOLOZHYN AND SOLIGORSK GEODYNAMIC TESTING AREAS (BELARUS)
A.V. Matveyev, A.A. Kovalev, L.A. Nechiporenko, N.A. Shishonok, S.I. Kononovich, J.N. Chiberkus
E-mail: matveyev@ns.igs.ac.by
E-mail: matveyev@ns.igs.ac.by
The results of measurements of horizontal movements of the Earth,s crust are analyzed in the paper. These measurements were carried out within 1996 and 1999 using a system of satellite navigation WILD GPS-SYSTEM 200. Special reference marks confined to various basement blocks separated by faults were constructed for the purposes of monitoring of horizontal movements within the Volozhyn and Soligorsk geodynamic testing areas. These objects were selected for studies as the Volozhyn Graben and Soligorsk centrocline, that the testing areas are confined to, are the most mobile at the recent stage. The left-side displacements along the Korelichi superregional deep fault that crosses the territory of the Volozhyn graben, as well as along the Darasin fault, that is a part of the Central tectonic zone of the Starobin deposit of potassium chloride have been determined as a result of observations carried out with the Leica mathematical software (GPS-SYSTEM 200...,1996). The recorded average annual velocities of horizontal displacements were 0.042 and 0.052 m per year, respectively. These values are close to those obtained in the other regions.