Based on a detailed study on coal-bearing formations of Longtan Group inNiumasi, Baohetang, Hongshandian, Dolishan and Qiaotohe coal field, Central Hunan, two sedimentary factes regions have been identified: delta factes in the southfacies region and lagoon-tidal factes in north-factes region. The differences betweenthese two factes regions are discussed in detail. It is pointed out that synsedimentaryfault is an important factor controlling these two factes regions, and there is a correlation between the synsedimentary tectonics and the process of coal accumulation.The identification of sedimentary factes regions has important theoretical and practical significance. The synsedimentary tectonics seems to exist widespreadly in Upper Permian Longtan coal-bearing formations of Lianshao coal field, Central Hunanbeing an important coal-controlling factor.
Wang Wenxiang,Wang Zhongxiu,Yi Gaiwei et al. ON THE DIFFERENCES BETWEEN SOUTH-AND NORTHFACIES REGIONS OF UPPER PERMIAN COAL-BEARING STRATA IN CENTRAL HUNAN AND THE MECHANISM OF THEIR FORMATION[J]. Chinese Journal of Geology, 1995, (3): 259-267.