摘要
甘肃省煤炭资源较为丰富,煤类齐全,但在地域上分布不均衡。根据煤炭资源赋存特征可划分为5个赋煤带、9个煤田。主要含煤地层为中侏罗统,其次是下白垩统和下二叠统等,成煤环境中三角洲平原相聚煤最好,形成了区内的厚煤层,煤层赋存受同沉积构造和后期构造活动的综合控制作用。全省预测资源总量约1 656.8亿t(2 000m以浅),主要分布在陇东地区,庆阳、平凉两市的预测资源量约占全省总量的96%。
The Gansu Province possesses of abundant coal resources with complete coal ranks, but spatially uneven. Based on coal resource hosting characteristics can be divided into 5 coal hosting zones, 9 coalfields. Main coal-bearing strata belong to Middle Jurassic Series, then Lower Cretaceous Series and Lower Permian Series. The best coal-forming environment is in delta plain facies, where thick coal seams in the area formed. Coal seam hosting is integrative controlled by synsedimentary structures and later tectonic movements. Total predicted coal resources in the province have about 1 656.8 billion tons（above 2 000 m depth）, mainly distributed in eastern Gansu, while predicted resources in the Qingyang and Pingliang two cities account for about 96% of the total.
出处
《中国煤炭地质》
2014年第11期17-22,共6页
Coal Geology of China
关键词
含煤地层
煤类
煤炭资源
甘肃省
coal-bearing stratum
coal rank
coal resource
Gansu Province
