摘要
陶二煤矿扩大区岩浆岩发育,岩性为闪长岩、闪长玢岩,呈层状侵入煤系地层及煤层,使煤层厚度变薄、分叉,局部吞蚀成无煤区,岩浆的侵入使煤层结构复杂化,煤变质程度增高,局部成为天然焦。
Igneous rocks are well developed in the Taoer coalmine extended area,mainly diorite and dioritic porphyrite.They were layeredly intruded into coal measures and coal seams,make coal seam thinning and bifurcating,local resorption has made coal barren areas.Magmatic intrusion made coal seam texture complicated,degree of metamorphism increased,locally coal turned into natural coke.
出处
《中国煤炭地质》
2010年第B08期29-30,共2页
Coal Geology of China
关键词
岩浆侵入
煤层
变质
煤质
无烟煤
天然焦
陶二煤矿扩大区
magmatic intrusion
coal seam
coal quality characteristics
anthracite
natural coke
Taoer coalmine extended area
