Abstract
Hypotheses of the origin of diamonds, lithological, petrographic, mineralogical and geochemical features of diamond-bearing deposits of the Middle and South Timan are considered. A comparative analysis of two spatially separated, but similar in age, diamond-bearing deposits of the Middle and South Timan was carried out, and new data were obtained on the conditions of formation of these rocks. It has been established that the ancient Timan placers were formed due to erosion of the underlying strata, igneous rocks, mainly products of platform magmatism: acidic alkaline rocks, alkaline metaultrabasites, carbonatites, and also metamorphic rocks. Possibly, participation in sedimentation of material from secondary reservoirs. The book is of interest to specialists engaged in prospecting for diamonds, as well as carrying out research in the field of mineralogy and regional geology.
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