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有道
百度
谷歌
图片
维基
百科
火山颈
neck
stump
stump of volcanic column
volcanic neck
stump
stump of volcanic column
volcanic neck
- 昌乐蓝宝石闻名遐尔，但蕴藏蓝宝石的火山岩及火山群却少有人知。 昌乐县境内几十个由新近纪临朐群牛山组尧山组玄武岩构成的山包，大都是古火山口（颈）。
Many mountains in Changle county which were composed of basalts in Niushan and Yaoshan formation of Linqu group in New Neogene period are mainly Neo-volcanic craters. - 牛头山古火山历经四期喷发，地表可见四层喷溢相玄武岩层和两处火山颈相岩石出露。
The porosity and permeability of typical basaltic rocks have been analyzed. Four effusive facies basalt layers and two volcanic necks with rock outcrops can be identified.
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