Abstract
Presents the results concerning a comparative analysis of paleotectonic reconstructions of the tectonic conditions dynamics for the formation of local plicative deformations and faulting in the study of the macrostructure and its local separation using the example of the Almazno-Marievskyi region. The formation conditions characteristics of the Petrodonetska anticline and adjacent territories were obtained. In the plan, they are located en echelon-like, which is associated with a shift. The structure of the latter indicates a thrusting of the sedimentary stratum layers from the center of the Donetsk trough to its northern periphery. The analysis of reconstruction results regarding the formation of the Lysychanska anticline on the border with the Severodonetskyi thrust and sections in experimental research of pop-up structures, reveals their similarity in structure and formation. With oblique convergence of blocks from the shear zone, a series of overlapping thrusts are extruded. A central graben arises within the transpressive shear zone, along its axis due to the divergent reverse faults in the arched uplift. A system of parallel thrust faults forms a ramp. The necessity of using the system modeling method (the finite element method), which improves the methods for predicting gas-containing tectonic elements in the pop-up structures, is justified.
Highlights
The vast majority of traditional geological analysis objects should be attributed to objects of nonlinear geology, the science of the differentiation, organization, order and structuring processes [1]
The largest is the complexly constructed Dronovsko-Marievska anticline (DMA), which is the northeast side of the Bakhmut hollow
From N-NW it is sharply bounded by the Marievskyi thrust (MT), immediately followed by the Petrodonetska, Matrosko-Toshkovska (MTA), Lysychansk-Kremenska (LKA) anticlines, which are stretched in the NW direction
Summary
The vast majority of traditional geological analysis objects should be attributed to objects of nonlinear geology, the science of the differentiation, organization, order and structuring processes [1]. The active study of tectonic structure parageneses and the accumulation of vast actual material either on dynamic situations. The knowledge of parageneses is improved by field observations, experimental and theoretical modeling as well as modeling using fullscale examples. This problem gets important when forecasting gas-containing structures in coal-bearing areas and their geotectonic control. - a detailed study of its local objects structures; - a comparison of the actual tectonic structure to the results of modeling on equivalent materials; - an involvement of system modeling and optimization methods based on computer algebraization for the analysis of nonlinear structures (model of system reliability) [3, 4]
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