额尔古纳—满洲里地区中生代火山岩与铀成矿地质条件研究

与我国相毗邻的蒙古、俄罗斯超大型火山岩型铀矿床的发现促进了我国对额尔古纳—满洲里地区中生代火山岩铀成矿条件的研究。在野外调研、样品分析及资料综合整理基础上，本文从火山岩的火山喷发旋回与演化、岩性组合、岩石铀含量、岩石化学及火山岩形成环境方面分析了该区中生代火山岩的铀成矿地质条件，认为该区与国内外产铀火山岩特征相似，成矿地质条件优越，是我国超大型火山岩型铀矿床极具远景的地区。

STUDY ON MESOZOIC VOLCANIC ROCKS AND URANIUM METALLOGENIC GEOLOGICAL CONDITIONS IN ERGUNA-MANZHOULI

The finding of superlargescale volcanic rocktype uranium deposits in Mongolia and Russia promotes the research on Mesozoic volcanic rocks and uranium metallogenic conditions in Erguna and Manzhouli.Through analyzes on the uranium metallogenic conditions of Mesozoic volcanic rocks in the area from the aspects:the eruptive cycle of volcanoes,magmatic evolution,lithological combination,volcanic rock uranium content,lithochemistry and the forming environment of volcanic rocks, it is considered that the characteristics of uraniumproducing volcanic rocks in the area are similiar with those in the other areas at home and abroad where superlargesacle uranium deposits occurred, and the uranium metallogenic geological conditions in the area are more better. So,Erguna-Manzhouli is one of the most prospective areas of superlargeMesozoic volcanic metallogenic condition is similar to that of and the area is prospective for prospecting superlargescale volcanic rocktype uranium deposits.