Staging of the processes of clastic sediments mineral formation from the beginning of the Triassic to the Quaternary due to the geodynamic evolution of the West Siberian north edge
The paper summarizes the results of previous and the latest studies of mineral matter of Lower Mesozoic clastic rocks Koltogorsk-Urengoyskaya and the neighboring structures of the northern edge of the West Siberian Plain. The origin and changes of allogenic and authigenic mineral paragenetic associations are described in detail, in relation to their geological history, and changing of the sedimentary basin geodynamic regimes: the rift, the transition to syneclise stage, syneclise stage and inversion stage. There are analyzes of micro-and nanostructural and textural features of the underlying mineral formation processes, that are hidden from direct observation; explanation of their mechanisms and sources of required materials to them, ways of intralayer, interlayer and intrabasin redistribution under the influence of various thermodynamic and hydrogenic factors together with estimates of the likely dependence of those processes from specific geodynamic regime. Problems to be solved relate to the issue of «Lithogenesis and tectogenesis», and can find a practical way in a problem of the hydrocarbon reservoirs genesis.