1) thermal contact metamorphic zone of coal
煤接触热变质带
2) contact metamorphic coal
接触变质煤
1.
Based on the chemical analysis,microscopic identification,low temperature ashing and X-ray diffraction,three features of the inorganic matter in contact metamorphic coal of Datong coalfield are found out.
我国接触变质煤分布较广,有关接触变质煤的研究日益受到重视。
4) aureola
[英][ɔ'riələ] [美][ɔ'rɪələ]
接触变质带;晕
5) Thermodynamic contact metamorphism
热接触变质作用
6) thermal contact metamorphic rocks
热接触变质岩
1.
Owing to lack of isotope age evidence and no correct differentiation of Late Permian thermal contact metamorphic rocks and Himalayan dynamometamorphic rocks from pre-Sinian regional metamorphic rocks, for a long time there have existed many difficulty and problems in the classification of the crystalline basement in the Panzhihua-Xichang (called Panxi for short) area.
长期以来,由于同位素年龄依据不足和没有正确区分晚二叠世热接触变质岩、喜马拉雅期动力变质岩与前震旦纪区域变质岩,攀西地区结晶基底的划分存在许多困难和问题。
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