REVEALING OF LITHODYNAMIC FLOWS AS ONE OF PETROLEUM POTENTIAL CRITERIA OF THE PRE-JURASSIC BASEMENT AND SEDIMENTARY COVER CONTACT ZONE IN THE SHIROTNOYE PRIOBYE

P. S. Lapin

At the modern stage of the Earth’s relief evolution lithodynamic flows revealed with the aim to estimate matter and energy movements within the Mesozoic-Cenozoic cover (according to N. A. Florensov). The concept of the lithodynamic flow is close to the idea of thermal and phase convections, but the former refers to matter movements controlled by modern relief-forming processes. In this context, the modern relief-forming processes are estimated in system-formation terms. They include a wide range of elements and characteristics of relief, the main of which are roughness of relief, climate, and substrate. The paper considers a relation between general erosion-denudation factor and elements of the major morphology (an interstream area, a slope, a valley bottom). Analysis of morphological features of the modern relief revealed relict areas and, based on them, specifics of lithodynamic flows. A subsurface manifestation of the latest movements has been previously revealed, which implied a deep emergence of lithodynamic flows. The obtained results enabled detailing of vertical and lateral transit zones at the latter stage of the Mesozoic-Cenozoic cover evolution and prediction of its petroleum potential.

Key words: leading relief-forming process, basal horizon, migration.

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