粤西长坑硅质岩地球化学特征及其成因研究  

GEOCHEMISTRY AND GENESIS OF CHANGKENG SILICOLITES,WEST GUANGDONG,CHINA

作　　者：孙凯[1] 

机构地区：[1]中山大学地球科学系97研,广州510275

出　　处：《中山大学研究生学刊（自然科学与医学版）》1998年第2期29-36,共8页Journal of the Graduates Sun YAT-SEN University(Natural Sciences.Medicine)

摘　　要：硅质岩是粤西长坑金银矿床的直接容矿岩石。本区硅质岩常量元素、微量元素、稀土元素及硅氧同位素等地球化学特征与热水沉积硅质岩相似,属于热水沉积成困。The silicolites is the country rock of Changkeng Au—Ag de- posit.The compositions of major,trace,rare earth elements and silicon and oxygen isotope of the Silicolites at this area are similar to those of many hydrothermal sediments.The genesis of Changkeng silicolites is hydrothermal deposit.

关 键 词：硅质岩 地球化学 热水沉积 广东省 

分 类 号：P588.24[天文地球—岩石学] P59[天文地球—地质学]