coal metamorphism type 煤变质作用类型
ON COAL METAMORPHISM 煤的变质作用雏议
coal metamorphism regions 煤变质区
types of coal metamorphism 煤变质类型
stage of coal metamorphism [地质] 煤变质阶段
The zone of coal metamorphism is evident and related to the distribution of diabase which intrusion after main coal formation.
煤变质带的分布与后期侵入的辉绿岩的分布关系密切。
This is a model of telemagmatic metamorphism and a character of coal metamorphism early-middle Jurassic in northwest of China.
属于区域岩浆热变质作用的一种模式，也是西北地区早中侏罗世煤变质的特点之一。
On the basis of what is said above we put forward the concept and types of "Coal Metamorphism Region" and specifically divi...
在此基础上提出“煤变质区”的概念和类型，并对我国的“煤变质区”进行了具体的划分。
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