The research history of coal facies is retraced both at home and abroad,discussed main aspects of coal facies studies,summarized major basis of coal facies pision from coal petrography,sedimentology,geochemistry and paleobotany.
简要回顾了国内外煤相研究的发展历史,讨论了煤相研究的主要内容,从煤岩学、沉积学、地球化学及古植物学等4个方面总结了煤相类型划分的主要依据,在此基础上对目前煤相研究的主要方法进行了归纳。
Based on the study results the genetic markers and characteristics of the coal seam are summarized petrologically, sedimentologically and paleontologically, 13 types of coal facies are subpided, and the coal facies evolution history of this coal seam are rebuilt.
用微观研究的方法,对兖州矿区太原组16号煤层的煤相进行了研究。
From the microscopic point of view,a genetic classification of the coalbed was made,on this basis,6coal facies were pided:arid forest bog,stagnant shallow water covered forest bog,flowing shallow water covered forest bog,stagnant deep water covered forest bog,flowing deep water cov.
在系统总结西山煤田7号煤层成因标志的基础上,对其成煤植物、成煤环境及其古地理背景、古气候变化进行了综合分析;然后从微观研究的角度出发,对该煤层进行了成因类型的划分,在此基础上,详细划分了该煤层煤相,共划分出6种煤相类型:干燥森林沼泽相;滞流浅覆水森林沼泽相;流动浅覆水森林沼泽相;滞流强覆水森林沼泽相;流动强覆水森林沼泽相以及洪泛沼泽相。
The paper introduces the geological condition and working surface situation of Du'erping mine, points out the problems existing in re-mining, analyses the condition of lower wall rock stress of mine column, and presents the mining measures of over mine column of adjacent coal bed.
介绍了杜儿坪矿的地质条件、工作面情况,指出了回采中遇到的问题,分析了煤柱下围岩应力的情况,提出相邻煤层过煤柱开采的措施。
Based on the observations and quantitative analyses of macerals in 29 coal samples,combining with the analysis of chloroform bitumen "A" group component and gas chromatographical analysis of saturated hydrocarbon,the coal facies properties of mega coal seam in Neogene Miocene Xiaolongtan Formation(N1x) in Xianfeng Basin are studied.
通过２９个煤样的显微组分观察和定量分析，结合氯仿沥青“Ａ”族组分分析和饱和烃气相色谱分析，对先锋盆地上第三系中新统小龙潭组（Ｎ１ｘ）巨厚煤层的煤相特征进行了研究。
of coal, as contrasted with coal obtained from a strip mine.
关于煤，与从露天矿中开采的煤相对的。
Nos.9 and 16 Coal Seams Anthracographic Features and Sulfur in Coal
黔北煤田花秋勘探区9、16号煤煤相特征与煤中硫
Coal Facies Features and Comparative Study of Southern China Late Permian Bark Coal
华南晚二叠世树皮煤的煤相特征及对比研究
Comparison Research between the Jurassic Coal Facies and the Hydrocarbon-Generating Potential in Turpan-Hami Basin
吐哈盆地侏罗系煤相与生烃潜力研究
Ceshui Formation Lithofacies Paleogeography and Coal Accumulation in Northern Section of Lianyuan-Shaoyang Coalfield, Central Hunan
涟邵煤田北段测水煤系岩相古地理与聚煤作用
The correlation of ash and gross calorific value of Penghu clean coal
坪湖煤矿精煤灰分与高位发热量相关关系
Research on Relationship of Mining Height and Recovery of Top-coal in Full-mechanized Caving Mining
综放开采割煤高度与顶煤回收率相互关系研究
Research on Coal and Rock Separation and Petrographic Analysis Experimentation of Coal Samples from KAILUAN Group Mining Corporation
开滦煤煤岩分离及岩相分析的试验研究
Maceral Effect on Slurryability of CWS
煤的岩相组成对煤的成浆性的影响——灵武煤改性制备高浓度水煤浆研究之一
Studies on Interactions Between CWS Dispersants and Coals Ⅷ Effect of Sodium Lignosulphonate on the Slurryability of Coal and CWS Rheological Behavior
水煤浆分散剂与煤之间的相互作用Ⅷ木质素磺酸钠对煤的成浆性与水煤浆流变特性的影响
Coal-accumulating environments and characteristics of inland coal measures: a case study of Jurassic coal-bearing area in Qilian Mountains and north Caidamu basin in Qinghai
陆相煤系聚煤环境及聚煤特征——以青海祁连山和柴北缘含煤区侏罗系为例
Instead, he struck a match and lighted the gas.
相反，他划了根火柴，点亮了煤气灯。
Analysis of manufactured gas composition by gas chromatography
GB/T10410.1-1989人工煤气组分气相色谱分析法
A large percentage of the coal is exported.
相当大部分的煤出口国外。
Determination of true relative density of coa
GB/T217-1996煤的真相对密度测定方法
Determination of apparent relative density of coal
GB/T6949-1998煤的视相对密度测定方法
The lower temperature corresponds to the plastic temperature of a certain coal.
较低的温度相当于某些煤的塑性温度。
Study on the Relation of the Regional Earthquake and Coal and Gas Outburst;
区域地震和煤与瓦斯突出相关性研究