火山岩型铀矿床成矿构造控制特征——以俄罗斯Streltsovka火山岩型铀矿床与中国相山火山岩型铀矿床为例

Tectonic-Control on Volcanic Rock-Hosted Uranium Deposits——Example by the Streltsovka Volcanic Rock-Hosted Uranium Deposit, Russia and the Xiangshan Volcanic Rock-Hosted Uranium Deposit, China

本文通过对俄罗斯Streltsovka火山岩型铀矿床和中国相山火山岩型铀矿床的对比研究，发现两矿床具有相似的成矿构造控制特征：走滑挤压至拉张伸展的构造转化是矿床形成的有利构造机制；盆地格网状断裂构造对铀的成矿起着导矿、控矿和容矿的作用；多次构造叠加形成的独特的盆地二元结构是成矿的有利因素。根据对这些构造控制特征的分析，提出了火山岩型铀矿床找矿勘探的几点建议。

It is indicated that there are some similar geological features between the Strehsovka volcanic rock-hosted uranium deposit, Russia and the Xiangshan volcanic rock-hosted uranium deposit, China. Tectonic change from strike-slip compression to extension is propitious to ore-forming. Netty faults in sedimentary basin play the important role for transportation and deposition of the metallic materials. Another control factor for ore-forming is special binary structure formed by repetitious tectonic activities. According to this study, some propositions on ore-exploration are given.