赤城县独石口地区火山岩型铀矿化特征及找矿预测  

Characteristics of volcanic-type uranium mineralization and the ore prediction in Dushikou area,Chicheng county

作　　者：张恩[1,2] 卢辉雄[1,2] 李名松[1] 董双发[1] 王瑞军[1] 曹秋义[1,2] 杨彦超[1] 冯博[1] 

机构地区：[1]核工业航测遥感中心,石家庄050002 [2]东华理工大学地球科学学院,南昌330013

出　　处：《地质找矿论丛》2017年第3期397-402,共6页Contributions to Geology and Mineral Resources Research

基　　金：中国核工业地质局地勘基金项目(编号:200954)资助

摘　　要：赤城县独石口地处沽源中生代火山盆地南部塌陷内,其火山构造活动强烈,铀成矿地质条件优越,铀矿化异常线索丰富。铀矿化主要产于晚侏罗世潜火山岩内部及其内外接触带,受断裂构造及潜火山岩复合控制,与赤铁矿化、硅化、萤石化、水云母化、绿泥石化等蚀变关系密切。通过对地层、潜火山岩体、构造、航放、遥感铁染及羟基蚀变异常等成矿条件进行分析,认为研究区具备较好的火山岩型铀矿找矿前景,圈定一级远景区3处,二级远景区2处,对该区进一步找矿具一定的指导意义。The Dushikou area of Chicheng County is located in the Dushikou volcanic collapse basin in the southern of Guyuan Mesozoic basin with strong volcanic activity.Here is superior in uranium metallogenic condition and many U anomalies occur.The mineralization is mainly distributed at inner and outer contact zones of the Late Jurassic subvolcanics and is controlled by both of fault and subvolcanic rock and often closely associated with hematitization,silicification,fluoritization,hydromicazation,and chloritization.According to the analysis of metallogenic condition such as strata,subvolcanic rock,structure,airborne radiometric anomly,iron stain and hydroxyl alteration information the area is potential for volcanic-type uranium deposit and 3 target Ⅰ and 2 targe Ⅱ are delineated for further prospecting.

关 键 词：火山岩型铀矿 矿化特征 找矿预测 独石口地区 河北省 

分 类 号：P619.14[天文地球—矿床学] P613[天文地球—地质学]