Coal-bearing strata in southeast Shanxi consist of carbonate rocks lime-stone, clastic rocks and coal.
石炭-二叠系含煤岩系，由灰岩、碎屑岩和煤共同组成。
Coal geology emphatically studies always stratigraphy and sedimentology of coal and coal-bearing strata.
煤地质学一直偏重于对煤和含煤地层的地层学和沉积学的研究。
There commonly exist pyrite minerals in coal-bearing strata in one region, but it is difficult to separate.
某地区煤系地层中普遍产出硫铁矿，但非常难选。
These deposits are in unconformable contact with the underlying coal-bearing strata of the Shahezi Formation.
矿床与下伏沙河子组煤系地层呈不整合接触。
The basin's Late Triassic coal-bearing strata are the major coal-bearing horizon in central Yunnan and southwestern Sichuan.
其中的晚三叠世含煤岩系是滇中与川西南重要含煤层位。
The authors discuss the depositional characteristics and sequence stratigraphic significance of late Paleozoic coal-bearing strata of the Datong area, Shanxi.
本文论述了山西大同晚古生代含煤地层的沉积特征及其层序地层学意义。
This paper discusses the petrologic characteristics of the coal-bearing strata under the geologic structural background of the Tertiary coal basin in Hunchun.
本文以珲春早第三纪含煤盆地的地质构违背景为依据，分析了煤系地层的岩石学特征。
Fractal theory was used in this paper, and fractal feature of grain distribution of sandstone in coal-bearing strata in Permo Carboniferous System was studied.
应用分形的思路和方法研究了石炭-二叠系含煤地层砂岩粒度分布的分形特征。
A kind of high plasticity soft-clay, also called kibushi clay, is widely deposited in Carboniferous-Permian and Jurassic coal-bearing strata in northern China.
中国北方石炭二叠纪和侏罗纪煤系中普遍产出一种可塑性极高的软质粘土，又称木节土，其矿物组成以高岭石为主。
Compared with gymnospermae pollen, the fern spore has a more closer relationship with soluble organism in the low-rank source rocks from the coal-bearing strata.
而蕨类孢子和裸子植物花粉相比，可能对低熟-未熟油，特别是含非烃较高的低熟油有某种更为密切的联系。
Media condition of coal-bearing strata is the basis of formation and growth of geologic structures. It has an important effect on the development of faults in coalbed.
煤系介质条件作为构造形成和发育的的物质基础，必然影响断层的发育。
They indicate that the early charged oils are derived from the pre-Jurassic lacustrine mudstones and the later charged oils are from the Jurassic coal-bearing strata or coals.
表明早期注入到这些油层的油气组分来源于前侏罗系湖相泥岩，晚期注入的油气组分来源于侏罗系煤系地层或煤岩。
On the basis of mass borehole data, the paper analyzed Middle Jurassic coal-bearing strata distributing features, coal-bearing property, coal-forming period in the Yining basin.
以大量钻孔资料为基础，研究了伊宁盆地中侏罗统含煤地层的分布特征、含煤性、聚煤期。
The research result shows:Badaohao Formation - coal-bearing strata - in Badaohao Coal Basin is of early Cretaceous Period and can be correlated to Shahai Formation in Fuxin Basin.
研究结果表明：区内八道壕煤盆地的含煤地层八道壕组属早白垩世，可与阜新盆地的沙海组对比。
Analyses on the development of Huangshan to Ergonghe Syncline, and several faults, and summarized its control and influences to the coal-bearing strata, based on the structural genesis.
对研究区主要褶曲黄山一二工河向斜及几条断层的发育情况进行了分析，并且根据构造成因总结了其对含煤地层的控制与影响。
Through comprehensive analysis of coal-bearing strata combinative characteristics in the area, figured out the strata belong to Lower Jurassic Beipiao Formation coal-bearing rock series.
通过对该区含煤地层组合特征综合分析，认为其应属下侏罗统北票组含煤岩系。
The porosity and permeability of coal-bearing strata have important influence to the exhaust and mining of coal bed gas, but the production of coal bed gas is precondition of its richen.
煤系地层孔隙性和渗透率对煤层气的抽放、排采具有重要影响，但煤层气的生成却是其富集的先决条件。
And Darcy flow production equation with gas-bearing volume may reflect the characteristics of methane migration in coal measure strata more really.
把含气量引入达西流产量公式也许能更真实地反映甲烷气体在煤储层中流动产出的特征。
Coal geology emphatically studies always stratigraphy and sedimentology of coal and coal bearing strata.
煤地质学一直偏重于对煤和含煤地层的地层学和沉积学的研究。
The Permo Carboniferous is the main coal bearing strata in Henan Province.
石炭—二叠纪地层是河南省主要含煤地层。
Much attention is paid to petrologic recognition marks and distribution regulation of volcanic event strata in coal bearing sequences of Taiyuan formation in the middle of North China.
研究了华北中部太原组含煤地层中火山事件层的岩石学识别标志和分布规律。
The displacement Angle of strata has a great bearing on the size of coal pillar for protection of buildings on very thick unconsolidated layers, and has a great economic potentials.
地层移动角参数对巨厚松散层矿井的建筑物保护煤柱尺寸影响很大，经济潜力十分巨大。
The coal classification distribution of coal bearing strata in the Up Permian Series of Guizhou has an X type feature in plan.
贵州上二叠统含煤岩系煤级分布在平面上呈现X型分布特征，即具有东、西侧变质低，中部变质高的特点，分布规律明显。
The coal classification distribution of coal bearing strata in the Up Permian Series of Guizhou has an X type feature in plan.
贵州上二叠统含煤岩系煤级分布在平面上呈现X型分布特征，即具有东、西侧变质低，中部变质高的特点，分布规律明显。
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