Page 280 - Geochemistry of Oil Field Waters
P. 280
b rn z rrl is b =iJ 0 z
accumulative products chloride-sulphate (1) (2) CaC03 and ferri- alumino- siliceous system
Third cycle (Neoluvium) from Recent Drift residual products solonez and (1) gypsum bearing (2) leached supra- calcareous (siallitic) unsaturated siallitic (3) (3) siallitic*’
accumulative products chloride-sulphate (1) (2) calcareous chloride-sulphate unsaturated siallitic*2 (3) calcareous chloride- sulphate
Second cycle (paraeluvium) from sedimentary rocks residual products detrital (supra-calcareous allitic (?) *’ A large quantity of silica and much of its calcium and sodium compounds are removed; the aluminosilicates pass gradually into residual aluminosilicic acids,
1955) (1) (2) siallitic (3) The accumulation of sesquioxides at the expense of the leaching out of the alkalis, alkaline earth, and silica.
weathering (after Chebotarev, from igneous and highly metamorphosed rocks accumulative products chloride-sulphate (1) (chiefly alluvial) (2) calcareous (chiefly colluvial and proluvial) siallitic (3) The action of carbonated atmospheric water is insufficient to replace the absorbed ions by hydrogen.
Cycles and types of products of First cycle (orthoeluvium) residual products coarse detrital (1) (2) calcareous (under vegetation cover) siallitic (3) (4) alliti~*~ (lateritic crust of weathering) acids of the kaolin type.
TABLE 8.111 Cycles of weathering: Types of products weathering of i.e., *’ *3
