西藏自治区拉诺玛铅锌多金属矿床成矿地质特征再研讨与找矿远景分析  

Lead-zinc polymetallic deposits in the Tibet Autonomous Region La Nuoma geological characteristics and exploration potential analysis and then discuss

作　　者：周德来[1] 钟康惠[1] 冯德新 李关清 苟金 韩文文[1] 

机构地区：[1]成都理工大学地球科学学院,成都610059 [2]西藏自治区地质调查院,拉萨850007 [3]西藏自治区地质调查院区域地质调查队,拉萨850007

出　　处：《四川有色金属》2011年第4期15-20,共6页Sichuan Nonferrous Metals

基　　金：西藏自治区矿产资源潜力评价(任务编号:12120110881631)资助成果

摘　　要：西藏拉诺玛铅锌多金属矿床位于三江并流地段,矿床赋存于下三叠统波里拉组(T3b)灰岩中,通过研究该矿区地质背景,认为拉诺玛矿床受控于澜沧江自南西向北东逆冲推覆构造及复式背向斜褶皱。根据该区地层微量元素含量数据分析结果,以及地质背景和相关化探异常资料,确定波里拉组(T3b)为主要含矿层位,矿体多赋存于该地层南北向构造破碎带中。研究分析,该区铅锌锑矿产资源成矿远景十分可观,圈定出5处找矿远景区。Tibet La Nuoma lead-zinc polymetallic deposit located in Three Rivers location, deposits occur in the limestone from Bolila Group （T3b） of Lower Triassic in layered or bandedshape, by studying the geological background, that La Nuoma deposit is controlled by the SW-NE thrust structure and double back on oblique folds. Based on the REE data analysis, and geological background information and related geochemical anomalies, and ultimately determine the Bolila Group （T3b） as the main ore body occurring in the multi-strata in the northsouth tectonic fracture zone. Research and analysis show lead and zinc district vision of antimony ore mineral resources are considerable, delineated five exploration prospect areas.

关 键 词：拉诺玛 铅锌多金属矿 地质特征 找矿远景 昌都盆地西藏 

分 类 号：P618[天文地球—矿床学]