河北峪耳崖花岗岩地球化学特征与成因

Granite Geochemical Characteristic and Genitic Type in Yu'erya, Hebei

峪耳崖花岗岩的稀土元素，微量元素，Ｓｒ、Ｎｄ、Ｏ、Ｓ同位素等表明它是老基底中的基性火山沉积岩系（属下地壳）重熔而形成的。

This paper deals with the granite in Yuerya Au deposit, Eastern Hebeiprovince. From REE, trace elements, Sr,Nd,O,S isotope etc, detail research has shown that the granite is the partialremelting product of the Archean basement rocks of the study area Qianxi group, which is composed of metamorphic basic intermediate volcano sedimentary rocks (belonging to lower crust). Rb Sr isochronism age, K Ar age show that the granite is conformed at the beginning of Yanshan era.