中国北东部火山岩型铀矿成矿地质特征及找矿方向

文章对中国北东部地区地质构造特征、中新生代地幔热作用、火山活动、热液蚀变作用等与铀成矿的关系进行了详细分析，认为铀矿床的形成主要与中生代的构造岩浆活动有关，铀矿床、矿点多形成于中生代中晚期，受深大断裂、幔枝构造、火山构造控制，初步划分出若干条（个）铀一多金属成矿带和铀矿化聚集区。依据预测准则和预测模型，筛选出Ⅰ级和Ⅱ级找矿远景区。

Metallogenetic geological feature and prospecting direction of volcanic type uranium deposit in Northeast China

A systematic analysis on the relation of geological structure, mantle diapirism, volcanic activity, hydrothermal alteration with uranium metallogenic process in Northeast China is made in this paper. It has been concluded that uranium deposits were developed during middle-later Mesozoic era and controlled by large fractures, mantle plume and volcano-tectonic activity. Seven uranium-polymetallic metallogenic belts and twenty-three uranium mineralization prospective areas are thought to be favourable for the formation areas were outlined. Finally, three of volcanic uranium deposit.