相山铀矿田深部找矿标志及找矿方向

The Indicators and Direction for Deep Exploration in Xiangshan Uranium Ore Field

通过对相山铀矿田控矿因素的综合研究,笔着认为断裂构造是其关键的控矿因素,提出断裂构造与组间界面(变异部位)及基底界面复合、热液酸碱蚀变叠合、晚期花岗斑岩脉发育是深部的找矿标志。其中,碱性蚀变、晚期脉岩为该区构造带深部盲矿预测定位的重要标志。在空间上,该区存在上部第1成矿空间(组间界面控矿)和下部第2成矿空间(基底界面及晚期花岗斑岩控矿)。指出深部具有很大的成矿潜力,外围存在很大的找矿空间,并由此预测了新的铀成矿远景区和重点工作区。

By comprehensively studying the ore-controlling factors of uranium deposits in Xiangshan ore field, faults are regarded as the most important. The indicators for prospecting deep uranium deposits have been proposed as the superposition of faults, interfaces between volcanic formations or that of basement, acidic hydrothermal alterations superposed by alkali ones, and later granitic porphyry dikes, and the most important indicators are alkalie alterations and later dikes. It is raised that the first ore-forming space is controlled by interfaces between volcanic formations, whiles the second ore-forming space is controlled by interface between volcanica and the basement, as well as younger granitic porphyry. It was pointed out that uranium ore-forming potential in the deep of Xiangshan ore field is great and periphery area is of very large prospecting space.