青海省天峻县阳康地区花岗岩岩体锆石U-Pb年代学及地球化学特征研究
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Geochronology and geochemistry of the granodiorite intrusion in Yangkang area of Qinghai Province and its geological significance
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图5 w(SiO2)-w(K2O)图解(a)和ANK-A/CNK图解(b)
Fig.5 Diagram of w(SiO2)-w(K2O)(a) and ANK-A/CNK(b)