南秦岭钡成矿带钡矿床矿物组成的电子探针研究  

Electron Microprobe Characteristics of Barium Deposits in the Southern Qinling Mountains, China

作　　者：陶银龙[1] 刘家军[1,2] 代鸿章[1] 曹强[1] 陈贤[1] 

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083 [2]中国地质大学地质过程与矿产资源国家重点实验室,北京100083

出　　处：《矿物学报》2016年第2期277-284,共8页Acta Mineralogica Sinica

基　　金：国家自然科学基金项目(批准号:41173062;41573036)

摘　　要：南秦岭大型钡成矿带,钡矿物种类丰富。通过对南秦岭钡成矿带钡矿床中矿石和矿化围岩的电子探针研究,结合前人研究成果,发现南秦岭大型钡成矿带中钡主要以重晶石、毒重石、钡解石、菱钡镁石、钡长石、汉江石、安康矿、钡冰长石、钒云母等形式存在;硫化物以黄铁矿为主,并含有少量的针镍矿、闪锌矿、硫钒铜矿、蓝辉铜矿、斑铜矿。此外,还发现少量钒钛氧化物。在研究钡矿物化学组成的基础上,对毒重石、钡解石、菱钡镁石、钡长石、钡冰长石等钡矿物的成因进行了探讨。There are various kinds of barium minerals in a large Ba metallogenic belt in the Southern Qinling Mountains. Through electron microprobe analyses of ores and mineralization for Ba-deposits in the large barium metallogenic belt, combining with previous research results, we conclude that barium has a variety of occurrence, such as barite, witherite, barytocalcite, norsethite, celsian, hanjiangite, ankangite, hyalophane, rosceolite and so on. Pyrite is the main sulfide, meanwhile millerite, sphalerite, sulvanite, digenite, bornite can be also seen. Besides, there are some vanadium and titanium oxides. The genesis of the Ba-minerals was also discussed in this paper.

关 键 词：大型钡成矿带 电子探针 钡矿物 南秦岭 

分 类 号：P571[天文地球—矿物学] P611[天文地球—地质学]