The Yanshan Hills provide a natural defence for Beijing.
燕山是北京的天然屏障.
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.
Yanshanian strongly peraluminous intrusive rocks occur sporadically in the Hebei - Shanxi - Liaoning area.
燕山期强过铝质侵入岩零星出露于 冀晋 辽地区.
Duhuangling gold deposit occurred within the quartz diorite of Late Yanshan Epoch.
杜荒岭金矿床赋存于燕山晚期的石英闪长(斑)岩中.
The ore bodies are confined to Yanshanian metamorphosed rhyolite porphyry and felsite.
矿体赋存在燕山期变质流纹斑岩、霏细岩中.
Yanshan Road Subdistrict Office Road on the 24 th in the well - being.
燕山路街道办事处驻幸福道24号.
There are plenty sources of hydrothermal gold deposits in eastern Kunlun Mountains.
东昆仑分布有丰富的多种热液金矿床,成矿时代以印支期和燕山早期为主.
The most obvious record is right - parallel character formed in early Yanshanian . 3.
断裂记录最明显的为早燕山期的右行走滑运动.
The Yanshanian ductile shearing resulted in further enrichment of gold and antimony.
燕山期叠加的脆性变形使金锑矿进一步富集.
As a whole, deposit belongs to middle - low temperature postmagmatic hydrothermal deposit.
总的来说, 矿床属于中低温岩浆期后热液矿床,形成于燕山期.
The Bitian copper - gold - silver deposit is genetically related to Late Yanshanian subvolcanics.
福建碧田矿床是成因上与燕山晚期次火山岩有关的铜金银矿床.
Huangtupo alkali granite was im placed in Yanshn Epoch.
黄土坡酸碱性花岗岩株属燕山期.
The Changde landform has yanshan movement characteristic.
常德市地貌具有燕山运动的特征.
But only on north mountains Tatar horses neigh.
但闻燕山胡骑鸣啾啾.
Meanwhile fluid trap, which mainly formed in Yanshan Movement and Himalayan Movement, is not dominant. 4.
流体圈闭是燕山和喜山运动的产物, 在研究区不占主要地位.