Metallogenic specialization of sedimentary cover in Central Asia is determined by its tec-tonic setting that governs the hydrodynamic regime (exfiltrational or infiltrational) and as a consequence, the hydrogeochemical zonality (type of water and its gaseous and microcomponent composition). Hydro-dynamic conditions (distribution of recharge and discharge areas) determine the direction of stratal wa-ter flow and location of mineralization resulted from the change in geochemical, thermodynamic, litholog-ical, structural and other conditions. The exfiltrational regime suggests a dependence of the epigenetic mineralization upon the distribution and degree of preservation of hydrocarbon occurrences. Often, hy-drocarbon matter serves as a reducing barrier and ore-concentrating factor during the formation of polymineral concentrations related to stratal oxidation zone. The supergene epigenetic ore-forming pro-cesses are induced by the interaction between the Earth ' s sedimentary cover and hydrosphere. Sedimen-tary rocks themselves commonly serve as a source of ore materials. The ore deposition zones on geochemi-cal barriers and ore material source are often located significantly apart from each other. The trend of these processes is determined by the position of ore-bearing depressions in large tectonic blocks.

Igor Pechenkin;Vladislav Petrov

FSBI All-Russian Scientific-Research Institute of Mineral Resources,Moscow,Russia;Institute of Geology of Ore Deposits Petrography Mineralogy and Geochemistry RAS,Moscow,Russia

地球科学学刊（英文版）

[1]Igor Pechenkin;Vladislav Petrov-.Central Asia––A Global Model for the Formation of Epigenetic Deposits in a Platform Sedimentary Cover)[J].地球科学学刊（英文版）,2022(02):278-288

exfiltrational,infiltrational,zonality,microcomponent,litholog,polymineral,hydrosphere,Sedimen,geochemi

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