Yanshanian movement 燕山运动
early Yanshanian 燕山早期
Early Yanshanian tectonuic movement 早燕山运动
Middle Yanshanian 燕山中期
late Yanshanian 燕山晚期
Yanshanian structure 燕山期构造
By yanshanian the Qinling orogenic belt had the characteristics of intra-continent orogeny, which falls into two successive stages: Yanshanian intra-plate orogeny and late Mesozoic- Cenozoic intra-plate extension.
印支碰撞造山后秦岭转入了陆内造山演化阶段，经历了燕山期陆内造山作用和中生代末-新生代陆内伸展作用两个主要地质演化阶段。
参考来源 - 小秦岭燕山期构造特征及其演化·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
It is a large potential region of the Yanshanian porphyry metallogenic system.
为待揭开的大型以上规模的燕山期斑岩系列成矿潜在区。
The ore body is related to the Early Yanshanian magmatic activity in time and space.
矿体在时间和空间上与燕山早期岩浆活动有一定关联。
Its heat reservoir is composed of Yanshanian granite - porphyry and tuff of Mesozoic.
热储由中生代燕山期花岗斑岩、凝灰岩组成。
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