机构地区: 西南交通大学
出 处: 《四川联合大学学报(工程科学版)》 1999年第3期78-82,89,共6页
摘 要: 秦岭碰撞造山带广泛发育交代型花岗岩带。其中在加里东期和海西期形成的花岗片麻岩带最具特性。本文描述了花岗片麻岩的岩石学特征及岩石化学特征。 There is a wide-developed metasomatic granite belt in QinLingcollision orogens. Among the belt, the granitic amphogneiss formed in Caledonian period and Hercynian period is typical. In this paper, the lithological and petrochemical character of this granitic amphogneiss is described.