摘要
藏东优日铅锌铜多金属矿床位于昌都-兰坪双向弧后前陆盆地[1],该矿床受地层、岩体及北西-南东向断裂构造带控制,矿体赋存于交嘎组(P2j)碎屑灰岩、泥晶灰岩和妥坝组(P3t)结晶灰岩、凝灰岩中。本文通过介绍了区域地质背景、矿区地质特征及成矿演化,结合矿体岩石化学异常、物探等异常特征,初步分析了优日铅锌铜多金属矿床的成因,建立了成矿模式,认为该矿床属于热液(层控)型矿床,具有可观的找矿前景。通过研究该矿床,也可为该地段相同或相似类型矿床的发现提供理论及勘查技术方法上的参考。
Eastern Tibet Youri pb - zn deposit is located in Changdu-Lanping bidirectional back-arc foreland basin ,this deposit is mainly controlled by stratum, rock mass and NW-SE trending fault structure zone ,the ore body contain in P2j which is scrap limestone mud crystalline limestone and P3t which is crystalline limestone tuff. In this paper, by introducing the geological background, diggings features and metallogenic evolution, combining ore body petrochemistry abnormal and geophysical anomalies, the author has made a preliminary analysis of the causes of lead - zinc deposits and established the metallogenic model, Therefore,the author concludes that this deposit is a stratabound hydrothernlal type mineral deposit, the deposit have considerable prospect. By studying the deposit, we can also supply the same or similar types of deposits found with reference on the theory and exploration technology methods.
出处
《四川有色金属》
2013年第3期9-14,共6页
Sichuan Nonferrous Metals
基金
西藏自治区矿产资源潜力评价项目(1212010813025)
关键词
热液层控
成矿模式
铅锌矿
优日
hydrothermal stratabound-type
metallogenic model
lead zinc deposit
Youri
