Про значення природних карбонатів у процесах синтезу і генези вуглеводнів у літосфері Землі

Abstract

The fundamental importance of studies of the processes of synthesis and genesis of hydrocarbons in the Earth's lithosphere has been confirmed and the prospects of the chosen direction for advanced research have been demonstrated, as well as for the thorough development of genetic principles of physical and chemical conditions of the formation of hydrocarbons deposits in various geological minds, focusing on the role of natural carbonate formation in this process. It is shown in this connection that one of the most striking natural phenomena of the Earth’s lithosphere is the obvious manifestations of veinlet-impregnated carbonate mineralization. This has been discussed in detail in the case of some areas of the Ukrainian Carpathians and Pre-Сarpathians, where the original carbonate veinlets of hydrothermal origin with traces of hydrocarbons migration are often happened, but industrial research works is rarely carried out because of their low (as expected) prospects for gas and oil deposits. We pay attention to the areas of development of the calcite veinlets with rare, perfectly faceted crystals of quartz – “Marmarosh diamonds” among the Cretaceous and Paleogene deposits of the South-Western slope of the Carpathians. As a result, supporting materials on the importance of natural carbonates in the processes of synthesis and genesis of hydrocarbons in the Earth’s lithosphere are given. It consists in the revealed previously unknown property of natural carbonates, mainly calcium carbonate, under the action of abiogenic high-thermobaric deep fluid to decompose and be an additional source of carbon with different isotopic compositions in the processes of synthesis and genesis of hydrocarbons: gas, oil, bitumen as well as a carrier of these compounds in time of their migration and conservation in new creations in the deposits of oil and gas-bearing areas and metallogenic provinces: deposits-fields, veins, fluid inclusions, veinlet-impregnated mineralization.