1 区域地质概况
图1 粤北岩浆岩带分布示意图(a)(修改自周新民,2007)、长江矿集区地质简图(b)及犁壁岭地段铀矿地质简图(c)1.中细粒二云母花岗岩;2.中细粒黑云母花岗岩;3.中粒二云母花岗岩;4.中粗粒黑云母花岗岩;5.粗中粒二云母花岗岩;6.黑云母花岗岩;7.实测或推断断裂;8.中基性岩脉;9.铀矿床;10.伽玛异常点;11.试验剖面及编号;12.测线及编号 Fig. 1 Schematic map of magmatic rock belt distribution in northern Guangdong (a)(modified after Zhou,2007), geological map of the Changjiang ore concentration area (b) and geological map of uranium deposit in the Libiling segment (c) |

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