1) coal forming in different place
微异地成煤
2) hypautochthonous coal
微异地生成煤
3) drift coal
异地生成煤
4) primary allochthony
原始异地生成煤
5) allochthonous coal
异地煤
1.
Late Carboniferous allochthonous coal is characterized by silty grains and shows similar turbidity sequence, without strike_lenticular structure commonly shown in in_situ coal.
河南宜洛煤田晚石炭世太原组中的异地煤，不存在通常在煤层中见到的那种条带状－透镜状结构，而呈现出是一种粉粒状的、具有浊积层序特征的煤层。
2.
When the organic fragments are abundant,then low ash,thick coal seams can be formed as allochthonous coal.
由于有机碎屑物质的密度低，在二次搬运和沉积过程中经过重力分异，有机碎屑通常富集在扇体顶部，形成异地煤层。
6) coal-forming micro-environment
成煤微环境
1.
11 coal seam of the Taiyuan Format ion of Upper Carboniferous in the Pingshuo Mining District is generally characteristic of the medium-s ulfur, high-ash and high-organic sulfur,but there are great differences in the ess en tial identifications among the coal layers,which might imply the remarkable div ersification of the coal-forming micro-environments.
山西平朔矿区上石炭统太原组11号煤层具有中硫、高灰、较高有机硫的特征,但其中各煤分层的基本性质差异较大,指示其成煤微环境显著变化。
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。
参考词条