辽宁省连山关铀矿床绿泥石形成环境与铀矿化关系

The Formation Environment of Chlorite and Its′ Relationship with Uranium Mineralization in Lianshanguan Uranium Deposit,Liaoning Province

采用电子探针分析技术,对产于辽宁省连山关花岗岩型铀矿床深部的绿泥石进行蚀变特征、化学组成、形成环境研究,并初步探讨该矿床中的绿泥石的形成环境与铀矿化关系。指出绿泥石的形成温度为242.54~286.89℃。与铀矿物共生的绿泥石主要是铁镁绿泥石、蠕绿泥石。含矿溶液沉淀时是一个还原环境,绿泥石不仅活化了花岗岩中的铀,同时还为铀矿化提供了良好的沉淀环境。

The paper adopts the technique of electron probe microanalysis, to study the alteration features, chemical composition and formation environment of chlorite in Lianshanguan uranium deposite ,and preliminary interpretates the formation environment of chlorite and its＇relationship with uranium mineralization. The paper indicates the chlorite formed at 242.54 - 286.89 ℃. The Ripidolite, Brunsvigite, Pycnochloriteg, Diabantite are detected during the studying. The mineralize solution deposited in the reducing environment. So the chlorite offers a favourable deposit environment.