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2 花岗岩手标本及显微镜下特征 Qtz-石英；Pl-斜长石；Kf-钾长石；Bit-黑云母

Fig.2 Hand specimens and microscopic characteristics of granite