摘要
根据1/5万区调资料、岩体接触关系、岩石类型、副矿物特征、矿产、包裹体、稀土配分、构造环境和同位素年龄等特点的研究,将骑田岭复式岩体的侵位时代划分为印支期、燕山早期和燕山晚期3个阶段,其中燕山早期是主要阶段。
Based upcn 1/50000 regional survey data and studies on rock contact relations,rock types,accessoryminerals,mineral products,inclusions,RE distribution,structural setting and isotope ages,the empla-cement time of Qitianling composite masses may be diveded into:Indo-Chinese epoch,early and lateYanshan epoches with the early Yanshan epoch been considered as a major one.
出处
《地质与勘探》
CAS
CSCD
北大核心
1992年第11期7-11,共5页
Geology and Exploration
