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西藏地区蕴含着丰富的煤炭资源,具成煤时期多、分布范围广的特点。作为成煤时期最早的马查拉组,形成于海陆过渡环境中的潮坪沉积体系,厚煤层多发育于泥炭沼泽中。对煤质特征的分析表明,马查拉煤系属于低中灰、低硫-中硫、中高-特高热值贫煤。
Tibet is rich in coal resources, with many coal and distribution of a wide range of characteristics. As the earliest Mazhara Formation in the coal formation period, it formed a tidal flat sedimentary system in the transitional land-sea environment. Thick coal seams were mostly developed in peat swamps. Analysis of the characteristics of the coal quality shows that the Machara coal belongs to low-medium-ash, low-sulfur-medium-sulfur and medium-high-ultra-high-calorific value lean coal.