1) rock density
成煤期
1.
On the basis of the statistical results for the 5588 data of the Upper Palaeozoic sedimentary rock density in Jiangxi,the macroscopic pattern,in which the rock density increases generally from the continental deposit to the marine,has been established.
根据江西省6655件上古生界沉积岩样品密度数据统计结果,建立了从陆相沉积到海相沉积其岩石密度增大的宏观模型,并用之分析了泥盆系、石炭系、二叠系和三叠系的密度空间分布特点及所表示的岩相古地理意义,由此探讨了江西省主要成煤期的陆、海分布轮廓,提出了石炭纪、二叠纪、三叠纪靠近古海的滨海盆地和三叠纪位于内陆的山间盆地是本区煤田聚集的有利地区。
2) coal formation
成煤
3) coal-forming environment
成煤环境
1.
Research on Coal-forming Environment and Sequence Stratigraphy in Coal Measures Strata;
煤系地层成煤环境及层序地层研究
2.
The results show:1), there were the differences between the characteristics of the coalification between the Taiyuan Formation vitrain and the Shanxi Formation vitrain which were formed in differencial coal-forming environments, and the differ.
结果表明:在高煤级煤早期阶段,形成于不同成煤环境的太原组煤与山西组煤的煤化特征仍有差异,在第三次煤化作用跃变之后这种差异逐渐缩小消失;高煤级煤分别以第三次和第四次煤化作用跃变为界,呈现出阶段性演化的特征,每阶段的演化机理有所不同;第三次煤化作用跃变中大分子结构的演化以芳构化作用主为,第四次煤化作用跃变则以强烈的环缩合作用占优势。
4) sedimentary environment
成煤环境
1.
The relationship of coal parameters,sedimentary environments and coal—forming processes are discussed.
本文结合平庄煤田地质特征及煤的形成环境特点,阐述了主要煤质参数分布特征及与成煤环境之间的关系。
2.
The relationship of coal parameters,sedimentary environments and coal forming processes are discussed.
根据平庄煤田露天矿区的地质特征和煤的形成环境特点，对西露天矿区６煤组的水分、灰分、挥发分、发热量、硫分、灰融性和Ｃ、Ｈ、Ｎ等煤质参数进行了综合分析，阐述了主要煤质参数在矿区的分布特征，探讨了煤质参数与成煤环境之间的关系。
5) coal-forming process
成煤作用
6) coal-forming model
成煤模式
1.
The coal-forming models in late permian eporch in Guangxi are divided into "two classes and three types", the two classes are peat bog coal-forming model and peat flat coal-forming model, the three types are bog type, tidal flat type and peat flat type coal-forming models.
广西晚二叠世成煤模式划分为“两类三型”，即泥炭沼泽成煤模式和泥炭坪成煤模式两类，沼泽型、潮坪型和泥炭坪型等三型。
参考词条
补充资料：煤的变质作用(见成煤过程)
煤的变质作用(见成煤过程)
metamorphism of coal
mel由玩anzhi zuoyong煤的变质作用(metamorPhism。f coal)‘见成煤过程。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。