Open AccessOn the seismic activity of the Upper Kama potassium salt deposit
Author(s) -
Vladimir V. Filatov,
Liubov A. Bolotnova
Publication year - 2020
Publication title -
izvestiâ vysših učebnyh zavedenij. gornyj žurnal
Language(s) - English
Resource type - Journals
eISSN - 2686-9853
pISSN - 0536-1028
DOI - 10.21440/0536-1028-2020-1-60-67
Subject(s) - geology , tectonics , sinkhole , zoning , fault (geology) , salt tectonics , seismology , disturbance (geology) , evaporite , active fault , hydrogeology , karst , mining engineering , geochemistry , paleontology , geotechnical engineering , sedimentary rock , diapir , political science , law
. The exploitation of the earth's subsoil on an industrial scale leads to a disturbance of equilibrium state of the geological environment and, as a consequence, to the manifestation of various dynamic events in it: sinkholes, rockbursts, induced earthquakes of various magnitudes, etc. Therefore, the problem of predicting such events or phenomena becomes urgent. About two dozen factors determining the state of geological environment and its dynamic regime have been identified in the course of solving this problem for the territory of Upper Kama (Verkhnekamskoe) potassium salt deposit (VKMKS): structural, tectonic, geomorphological, hydrogeological, hydrochemical, geophysical and others. Based on these factors-features, the zoning of the VKMKS territory was performed and the areas most likely for dynamic events manifestation were established. Among the factors-features stand out the dynamic events, which directly indicate the disturbance places of the geological environment’s equilibrium state. Among the features are the following: number and type of events, epicenters position, their relationship with the structural-tectonic elements of the geological environment’s structure and, first of all, with active faults. The purpose of this work is to compare the characteristics of a dynamic event that occurred in the area of SKRU-2 (Solikamsk mine-2) in 1995, with the geological structure of this area. Research methodology. The results of geological and geophysical studies carried out on the territory SKRU-2 are summarized, the characteristics of tectonic rockbursts are analyzed and the structuraltectonic and seismic data were compared. Research results. The structural-tectonic diagram of SKRU-2 territory was constructed and the relationship between the dynamic event and the structural features of the SKRU-2 territory was evaluated. Summary. The comparison of tectonic rockbursts characteristic and the structural-tectonic location of SKRU-2 territory has shown that the mine area is a nodal structure formed by active faults and complicated by fracture zones. Therefore, the probability of dynamic event focus development in such conditions is very high.