摘要
晋北太白维山火山岩属钾质碱性玄武岩系列，产于板块内部活化带，来源于上地幔或下部地壳，被上部地壳物质混染，为壳幔源型或同熔型火山岩．火山岩与Ａｇ（Ｐｂ、Ｚｎ）矿化关系密切，是成矿热液和矿质的主要来源之一．
Based on the study on geology,petrochemistry,rare earth elements,trace elements and stable isotopes,it is proved that the Mesozoic volcanic rocks in Taibai Weishan area,north Shanxi Province,are composed mainly of latite,trachyandesite,trachyte,rhyolite and their clastic rocks The subvolcanic rocks are mainly quartz porphyry The volcanic rocks are rich in potassium and belong to alkali basalt series They occure in mobilizational belt of inner plate It is believed that the magma of the volcanic rocks generated from partial melting of the material at higher mantle,but was contaminated by crustal matter In addition,there is a close relationship between the volcanic rocks and silver mineralization
基金
白银基金委员会资助
关键词
中生代
火山岩
成矿
中生代
Taibai Weishan volcanic rocks silver deposits Shanxi Province
