Geophysical processes and biosphere: article

Аnnotation: Analysis of the results of repeated geodynamic observations at the Buzachi peninsula field are presented. Comprehensive geodynamic monitoring includes leveling and gravimetric observations, GPS-measurements, as well as repeated satellite radar interferometry data. A comprehensive analysis of the results showed the presence of systematic subsidence of the earth's surface in the central part of the field territory, induced by development. Based on leveling and gravimetric observations, two areas of local anomalies were identified, which are localized in zones of anomalous deformation activity of faults. Dangerous manifestations of gas griffins were repeatedly recorded at the field, which occurred in the area of the dynamic influence of fault zones. Alternating sign (uplift and sub-sidence) deformations of the earth's surface were revealed, which preceded the process of active formation of griffins. Mathematical modeling of these processes was carried out and a generalized geomechanical model of the formation of anomalous and negative fluid dynamic manifestations was proposed. Calculation of local horizontal stresses showed that they are concentrated near active faults, forming paths for subvertical fluid migration and creating conditions for the formation of gryphons. A complex parameter is proposed to assess the level of geodynamic hazard of the field territory and areal distribution diagrams of this parameter by year are constructed. Potentially dangerous zones of anomalous manifestation of modern deformation and fluid dynamic processes have been identified.