柴北缘夏日达乌铌钽矿区花岗岩地球化学特征及地质意义

魏生云,王建国,郭学忠,邢佳

Geochemical Characteristics and Geological Significance of Granite in Xiaridawu Niobium-Tantalum Mining Area，Northern Margin of Qaidam Basin

Shengyun WEI,Jianguo WANG,Xuezhong GUO,Jia XING

图16 花岗岩类构造环境微量元素类别图解（底图据Pearce et al.，1984） VAG-火山弧；syn-COLG-同碰撞；WPG-板内；ORG-洋脊

Fig.16 Classification diagram of trace elements in granite tectonic environment （base map after Pearce et al.，1984）