地质通报2011，Vol.30Issue(5)：783-797,15.
西藏墨竹工卡地区甲玛铜多金属矿床矽卡岩矿物学特征及其地质意义
Mineralogical characteristics of skarns in the Jiama copper polymetallic deposit of Mozhngongka area, Tibet and its geological significance
摘要
Abstract
In order to study mineralogical characteristics of skarns in the Jiama copper polymetallic deposit and further identify genetic type of this ore deposit, this paper has studied such skarn minerals as garnet, augite and wollastonite by means of electron microprobe analysis and microscopic examination. The results show that garnets in the ore deposit are mainly andradite-grossularite and augites are mainly diopside. The skarns in the Jiama ore deposit belong to typical calcic skams. Based on previous researches on the geochemistry of skams, wall rocks,granite and on geochronology, this paper has revealed the genetic mechanism of the Jiama copper polymetallic deposit. Mineralization was closely related to the granites and the ore deposit resulted from the replacement of the marble by granitoid magma. The Jiama ore deposit is a typical skam deposit.关键词
矽卡岩矿物/地球化学/矿床成因/西藏甲玛地区Key words
skarn mineral/ geochemistry/ genesis of the ore deposit/ Jiama area, Tibet分类
天文与地球科学引用本文复制引用
王焕,唐菊兴,王立强,应立娟,郑文宝,唐晓倩..西藏墨竹工卡地区甲玛铜多金属矿床矽卡岩矿物学特征及其地质意义[J].地质通报,2011,30(5):783-797,15.基金项目
国家"973"项目(编号:2011CB403103)、中央公益性行业科研专项《西藏甲玛斑岩铜多金属矿科学基地研究》课师(编号:200911007-02)、青藏专项(编号:12120100120005)、中金集团重点勘探项目(编号:E0804) （编号:2011CB403103）
