Specific features of argillaceous minerals in depositions of sedimentary formations

Abstract

Accumulating in deposits of various sedimentary formations argillaceous minerals, taking into account their alterations and new formations at different stages of sedimentary process in each of them, are characterized by specific chemical-mineralogical and morphologic-genetic features. Allothigenous argillaceous ones have background meaning in sediments of sedimentary formations. Argillaceous minerals and their associations in terrigenous, terrigene-carbonate, carbonate, volcanogenous, and halogenic formations were characterized. In specific details argillaceous minerals of early stages of sedimental- and diagenesis (partially katagenesis) were Сharacterized, to which most of ancient (Upper Paleozoic and Mesozoic) diamondiferous placers are usually confined, by availability in which of kimberlite indicator minerals prospecting of primary deposits of diamonds with the help of heavy concentrate-mineralogical method are performed. The importance for solving of forecast-prospecting tasks of investigating material composition of volcanogegic formation and specific features of its material distribution during formation of different in age collectors of diamonds on specific diamondiferous regions of the Siberian platform is shown.