马剑-下梓州断裂带特征及其对天姆尖盆地铀矿的控制作用

MAJIAN-XIAZIZHOU FAULT ZONE AND ITS CONTROL ON URANIUM MINERALIZATION IN THE TIANMUJIAN BASIN

本文根据马剑-下梓州断裂带的基本特征，分析研究了该断裂带的形成和发展过程；同时根据该断裂带两侧已知铀矿化的特征，阐明了马剑-下梓州断裂带对铀成矿的控制作用。在初步查清天姆尖盆地铀成矿地质背景及其形成富大铀矿床若干地质条件的基础上，指出天姆尖地区寻找富大火山岩型铀矿的方向。

This paper deals with foe basic features of Majian-Xiazizhou fault zone,its formation and development processes. On the basis of features of the known uranium occurrences distributing in the both sides of the fault zone, its control on uranium mineralization has been also described. The basic geological background and conditions producing large-scale and high-grade volcanic-type uranium deposits have been surveyed and its perspective pointed out in Tianmujian basin.