摘要
通过对南秦岭印支期胭脂坝、东江口和柞水花岗岩岩石学、地球化学特征及多金属成矿地质特征的分析研究表明,三个岩体均属于高钾钙碱性岩石系列,胭脂坝黑云母花岗岩具过铝质A型花岗岩类特征,与钼成矿作用关系密切;东江口岩体和柞水岩体具准铝质～弱过铝质I型花岗岩类特征,与金及铅锌成矿关系密切。成矿类型以热液蚀变岩型和接触交代型为主。
Based on analysis and researches on granite petrology, geochemistry and polymetallic mineralization features, three Indosinian granite bodies occurring in the south Qinling are attributed into K eale-alkaline rock series, including the Yanzhiba biotite granite with characteristics of peralu-minous A-type granitoids, which are closely associated to molybdenum mineralization, the Dongjiangkou and Zhashui granite bodies with features of metaluminous - weakly peraluminous I-type granitoids, closely assoeiated with gold-lead-zinc mineralization. The metallogenic types in this area are dominant in hydrothermal altered rock and contact metasomatie types.
出处
《陕西地质》
2012年第2期46-55,共10页
Geology of Shaanxi
关键词
印支期岩体
钼矿
金矿
铅锌矿
南秦岭
Indosinian granite
molybdenum
gold
lead-zinc dePOsit
south Qinling
