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Scientific Review. Geographical Sciences

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GEOLOGY AND POSSIBILITIES OF GOLD MINERALIZATION OF WEATHERING CRUSTS IN DYUBKOSH AREA (YENISEI RIDGE)

Белозерова А.А.
Metalliferous crusts of weathering of Yenisei Ridge are the subject of geological prospecting and special scientific investigations for a long time. A big attention is paid to the Au-rich crusts of weathering, which became a source of metal for the most of placers in this region by weathering releasing, migration and its future concentration in alluvial and karst sediments. In the explored area, within the Dyubkosh graben, gold deposits of redeposited metalliferous crust, situated in karst pits, are widespread. Examples of these are deposits of gold-bearing weathering crusts of creeks such as Pyanyi, Nikolaevski and Ognya. In general, despite the obvious connection between crust formation processes and placers of the observed region, many issues concerning the localization regularity of objects of this type, relations with the primary sources of metal, the factors controlling the behavior of gold in the exogenous conditions, as well as regularity of distribution of enriched areas and «streams», currently are not fully understood.