摘要
文章以近年来地质找矿的研究热点地区——北山地区为研究地区,选取与成矿关系较为密切的加里东早期基性岩为研究对象,通过野外地质调查,地球化学样品的采集,分析其主量元素、微量元素以及硅酸盐等指标,研究了其地球化学特征。认为二龙包一带加里东早期原始基性岩浆来源于上地幔源区,与蛇绿混杂岩带的形成有密切联系。
Beishan area,a hotspot area in geological prospecting field,was selected as the research area,and early Caledonian basic rocks closely related to mineralization were selected as the research object.Through field geological survey and geochemical sample collection,this paper analyzed the major elements,trace elements and silicates,etc.,studied its geochemical features.It considered that the early Caledonian primitive basic magma in the Erlongbao area originated from the formation of the ophiolitic belt and closely related to the formation of ophiolite melange belt.
作者
高志杰
王宇昊
许常善
GAO Zhi-jie;WANG Yu-hao;XU Chang-shan(Gansu Provincial Geological Survey Institute,Lanzhou 730000,Gansu,China)
出处
《资源信息与工程》
2021年第2期16-18,共3页
Resource Information and Engineering
关键词
加里东早期
地球化学
构造环境
基性岩
early Caledonian
geochemistry
tectonic environment
basic rock
作者简介
高志杰(1984-),男,甘肃景泰人,本科,工程师,主要从事区域地质矿产调查。
