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山西煤类齐全,煤质较优良,是我国主要的炼焦煤和无烟煤基地。以山西多年来的煤炭资源预测资料和众多矿区勘查资料为基础,全面总结了山西省太原组和山西组煤类分布特征及其变质作用。研究认为,山西的煤类分布具有明显的南北分带性,38°线以北煤变质程度较低,煤类较单一,以气煤为主;38°线以南煤变质程度相对较高,煤类较多;山西省煤变质类型主要有深成变质、岩浆热变质和接触变质三种类型,深成变质是基础,也是山西省最重要的变质类型,岩浆热变质主要是燕山期岩浆活动叠加于深成变质的基础上造成的,接触变质只是局部的,对区域性的变质影响甚微。研究成果可以为山西省煤炭资源的合理利用提供依据。
Shanxi coal is complete, better quality coal, is China’s major coking coal and anthracite base. Based on Shanxi coal resource prediction data and many mining exploration data over the years, the coal distribution characteristics and metamorphism of Taiyuan and Shanxi groups in Shanxi Province are comprehensively summarized. The study shows that the coal distribution in Shanxi Province has obvious north-south zonation. The north coal 38 ° line has a lower degree of coal metamorphism and the coal type is single, with the gas coal as the main part. The coal degree at 38 ° line is relatively high, There are three types of coal metamorphism in Shanxi province, including metamorphism, metamorphism and metamorphism of metamorphism, metamorphism of deep metamorphism and the most important metamorphism of Shanxi Province. The magmatic thermal metamorphism is mainly Yanshanian magmatism Superimposed on the basis of deep metamorphism caused by the contact metamorphism is only partial, little effect on regional metamorphism. The research results can provide the basis for the rational utilization of coal resources in Shanxi Province.