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关于在花岗岩地区如何评价形成沉积铀矿床的可能性花岗岩体的风化作用所提供的铀对形成沉积铀矿床的可能性通常取决于:(1)岩体中的铀含量;(2)岩体通过风化作用所迁移的铀的程度;(3)风化作用的强度。关于这个问题,斯塔克利斯等(stuckless et al.1976,1978)认为,形成沉积铀矿床的花岗岩体的条件是:(1)岩体钍含量高;(2)硅含量高;(3)碱金属含量高;(4)黑云母含量中等。最近,马克尼亚(McNeal et al)等研研了美国西部亚利桑那、加利福尼亚、内华达、
The possibility of evaluating the formation of a sedimentary uranium deposit in a granite area. The possibility of uranium provided for the formation of a sedimentary uranium deposit by the weathering of granite bodies generally depends on: (1) the uranium content in the rock mass; (2) Degree of uranium migrated by weathering; (3) Intensity of weathering. In this regard, Starklis et al. (1976, 1978) consider that the conditions for the formation of granitic sedimentary uranium deposits are: (1) the thorium content of the rock mass is high; (2) the silicon content is high; and (3) Alkali metal content is high; (4) Medium mica content. Recently, McNeal et al. Conducted research in the western United States of Arizona, California, Nevada,