相山邹家—布水断裂带特征及对红卫铀矿床矿体分布的制约

Feature of Zoujia-Bushui fault zone and its restrictions on orebody distribution of Hongwei uranium deposit in Xiangshan

基于红卫铀矿床大量勘查资料的综合研究,通过深入剖析邹家—布水断裂构造系统,探讨其对铀矿体分布的影响。研究认为邹家—布水断裂带经历过多期次的构造活动,早期遭受压扭性构造作用产生韧性剪切变形,晚期遭受张扭性构造作用产生韧-脆性变形,构造类型属于左行走滑断层;铀矿化严格受断裂带下盘的裂隙所控制,断裂带及其旁侧伴生裂隙制约着矿体的空间产出位置,矿体分布与裂隙、热液蚀变等密切相关。

Through analysis of Zoujia-Bushui fault dynamic system in depth based on the comprehensive study of Hongwei uranium deposit, its influence on the distribution of uranium ore bodies was discussed. Because Zoujia-Bushui fault zone experienced many tectonic activities, torsional shear deformation is produced by early period torsional tectonic stress and produced tough -brittle deformation by later period torsional stress. The structural type belongs to the left strike -slip fault.Uranium mineralization was controlled by lower plate fissure of the fault zone. Spatial output position of the ore body was controlled by fault zone and its adjacent fissures. Distribution of ore body is closely related to fracture, hydrothermal alteration and so on.