| metals developed. Ore deposits of all three genetic series metamorphogenic) are known in the Soviet Union...supply of these three metals. In the exogenic series, the most significant are the classical sedimentary...retained their importance. In the metamorphogenic series, we recognize the metamorphosed deposits of ferruginous...geologists to discover and assess the whole range of series, groups, and classes of deposits of heavy, light...Although the commonly-known order with recognition of series, groups, and classes is used as the basis of the |
