华北克拉通西部临县紫金山碱性岩体地球化学特征及地质意义
郭喜运

Geochemical characteristics and geological implication of Zijinshan alkaline rocks in Lin County in the west of North China Craton
GUO Xiyun
紫金山碱性岩体lg $\tau$-lg δ (左)与Th/Yb-Ta/Yb图解(右)[ 23 , 24 ]