摘要
石湖地区发育的侵入岩由分布在研究区西北部的麻棚岩体和遍布全区的中酸性脉岩组成,两者的岩石化学和地球化学特征较为相似,都属高钾钙碱性系列岩石,可能为一套具有成因联系的岩石系列。稀土和微量元素研究表明其岩浆形成深度较大,且岩浆在演化过程中经历了不同程度的陆壳混染,成因类型为I型花岗岩,构造环境属于火山弧花岗岩。
The intrusive rocks in Shihu area can be divided into two parts of the Mapeng granitoid in the northwest of the survey region and the dike of lithology intrusive rocks which is throughout the region.The two with similar characteristics of petrology and geochemistry belong to high-K calc-alkaline series rocks and their origins have some connection. The REE and trace element studies show that the magma has a great depth,and the evolution process has experienced different degrees mixed of crust materials,which belongs to volcanic arc granite in tectonics and the genetic types are I-tyre granites.
出处
《有色金属工程》
CAS
CSCD
北大核心
2016年第5期74-80,共7页
Nonferrous Metals Engineering
关键词
石湖金矿
侵入岩
微量元素
稀土元素
Shihu gold deposit
intrusive rocks
trace element
rare earth element
