【摘要】 论述了山东省黄河北煤田岩浆岩特性特征、空间分布特点及其对煤层煤质的影响。认为三层岩浆岩是由不同时期从两个方向侵入到本区的,对煤层煤质都有不同程度的影响,形成煤的变质分带。更多还原

【Abstract】 Th e paper discusses igneous rock lithological features,spatial distributive charact ers and its influence on coal seam and coal quality of Huanghebei coalfield,Sha ndong Province.The authors are inclined to think the three layers of igneous ro cks were intrude to the region from two directions during distinct periods,cau sed different degree of influences on coal seams and coal quality,thus differ ent metamorphic zones were formed.更多还原