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。
The research shows that the extension of isolines of coal metamorphism or coal rank intersects the syncline axis trace at a high angle;
研究结果表明，煤变质指标等值线延展方向与向斜轴不平行而呈大角度相交；
To sum up, the study of coal metamorphism has guiding significance in bituminous coal prediction in Yimin coalfield and Hailar lignite basin.
研究该区煤变质规律对伊敏煤田及海拉尔褐煤盆地烟煤预测具有指导作用。
Along with study of magmatic rocks, the au-thors propose that coal metamorphism in coalfield resulted from shallow magmatic thermal metamorphism...
在此基础上，结合岩浆岩研究，指出抚顺煤田煤变质为一种具有浅成、高温、作用时间较短的岩浆热变质作用的产物。
The higher the degree of coal metamorphism is, the better the conductivity of coal is and the clearer the electric effect of methane gas in coal is.
煤化程度越高的煤导电性越好，且甲烷气体在煤中的电动效应越明显；
Along with study of magmatic rocks, the au-thors propose that coal metamorphism in coalfield resulted from shallow magmatic thermal metamorphism with hight...
在此基础上，结合岩浆岩研究，指出抚顺煤田煤变质为一种具有浅成、高温、作用时间较短的岩浆热变质作用的产物。
Along with study of magmatic rocks, the au-thors propose that coal metamorphism in coalfield resulted from shallow magmatic thermal metamorphism with high tempera...
在此基础上，结合岩浆岩研究，指出抚顺煤田煤变质为一种具有浅成、高温、作用时间较短的岩浆热变质作用的产物。
On the basis of what is said above we put forward the concept and types of "Coal Metamorphism Region" and specifically divides the "Coal Metamorphism Region" in China.
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。
Along with study of magmatic rocks, the au-thors propose that coal metamorphism in coalfield resulted from shallow magmatic thermal metamorphism with high temperature in a short time.
在此基础上，结合岩浆岩研究，指出抚顺煤田煤变质为一种具有浅成、高温、作用时间较短的岩浆热变质作用的产物。
The results showed that the influence of Na metal added on NH3 release during pyrolysis greatly depended upon coal metamorphism, which made the obvious influence on the coal with lower metamorphism.
结果表明：外加钠在热解过程中对NH3释放的作用较大程度上取决于煤的变质程度，变质程度越低的煤影响越明显。
The dynamic metamorphism of disturbed coals and the effect of radical density on coal gas outburst prediction are discussed.
在实验基础上进一步探讨了构造煤的动力变质作用和自由基浓度在煤和瓦斯突出预测中的作用。
Coal - bed gas is a very clean energy that is formed in the course of the formation and metamorphism of the coal.
煤层气是煤的生成和变质作用过程中形成的一种非常规清洁能源。
The paper studies the microstructures of the cokeite and the high, middle metamorphic coal, formed by the metamorphism of magma in view of the need for producing moulding coal and coke.
本文从生产型煤和型焦的需要出发，研究岩浆变质作用所形成的天然焦炭和高、中变质煤的显微结构。
There is a complete metamorphic series of coal from lignite to meager coal in Wumuchang area, Yimin, the main metamorphism type is contact metamorphism of coal.
伊敏五牧场区存在着从褐煤到贫煤完整的变质系列，其主要煤变质类型为接触变质。
Research shows that maceral and the degree of metamorphism of coal rock are key factors that control the generating and storing capacity of coal rock.
煤岩组分和煤变质程度是影响煤层生储气能力的主控因素。
In the bottom of coal measures is an acidic intrusive body, it is direct heat source of metamorphism, and provided the conversion of lignite to bituminous coal with thermodynamic power.
在本区煤系地层底部有一酸性侵人岩体，该侵入岩体是引起本区煤变质的直接热源，它提供了褐煤向烟煤转化的热动力。
A coal system can be divided into substance source subsystem, accumulation subsystem and metamorphism system in temporal range.
含煤系统在时间上可以分为物质来源子系统、物质堆积子系统、埋藏变质子系统。
The main reason for the rise of the coal rank and its composition transformation is the process of regional metamorphism and the influence of medium conditions around it.
造成这种煤的变质程度升高而夹矸成分转化的主要原因是区域变质作用及周围介质条件影响所致。
As to the coal seams with complex texture and higher degree of metamorphism, the qualitative division of coal species is more complex.
对于煤层结构复杂、变质程度较高的煤类，定性分类较为复杂。
While its geologic activities include peat accumulation and transportation, embedding activity caused by diastrophism and geothermal metamorphism of coal.
有关的成煤作用包括：泥炭的原地堆积—异地搬运作用、地壳旋回运动所引起的埋藏作用和成煤阶段的热变质作用。
While its geologic activities include peat accumulation and transportation, embedding activity caused by diastrophism and geothermal metamorphism of coal.
有关的成煤作用包括：泥炭的原地堆积—异地搬运作用、地壳旋回运动所引起的埋藏作用和成煤阶段的热变质作用。
应用推荐