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M岩体的铀矿化,除少数形成于加里东晚期(地槽阶段)外,主要形成在喜马拉雅期(地洼阶段)。成矿作用系就地取材,主要受断裂构造控制,具有继承、改造和叠加的成矿演化特征,经历了:Ⅰ、四堡群沉积铀源层的初步富集;Ⅱ雪峰期花岗岩化的再富集;Ⅲ,加里东晚期沿NE、SN向断裂热水溶液作用的工业矿化;Ⅵ 喜马拉雅期沿NNE、NWW向断裂构造的主要工业成矿。根据铀源层、岩体及断裂构造的相互关系,指出了有利找矿远景地段。
The uranium mineralization of M rock mass is mainly formed in the Himalayan period (Diwa stage) except for the minority formed in the late Caledonian (geosyncline stage). The metallogenetic system is dominated by the fault structure and controlled by the fault structure, with inherited, altered and superposed features of metallogenic evolution. The metallogenic evolution has experienced: Ⅰ, initial enrichment of the sedimentary uranium source of Silibao Formation Ⅱ granitization of the Xuefeng Period Re-enrichment; Ⅲ. Industrial mineralization of the hot Caledonian NE-SN fracture hydrothermal solution in the late Caledonian region; and Ⅵ major industrial mineralization along the NNE and NWW-trending faults in the Himalayan period. According to the relationship between uranium source rocks, rock mass and fault structure, the favorable prospecting prospect is pointed out.