The development history of ore-bearing karst in the West-Turgai bauxiteferuos region

Abstract

Classical karst bauxiteferuos region in the Western Turgai is under consideration. Upper Cretaceous bauxiteferuos rocks fill numerous karst depressions of different morphology: wells, sink holes (cones), caldrons - corrosion-collapse, corrosion-suffusion, corrosion-erosion. The development of these landforms has gone through several stages. Depressions, which were formed during two or more tectonic-denudation cycles, are most rich of ore. Those, which underwent only one cycle, are more uniform and their ore reserves are lower.