Study on seam strata and coal features of Jurassic system coal field in Beijing area
YANG Rong-feng 1, ZHANG Peng-fei 2 , LIU Qin-fu 2 (1 Xiangtan Polytechnic University, Xiangtan 411201, China; 2 Beijing Campus, China University of Mining and Technology , Beijing 100083, China)
The paper had a study on Coal Series Basin in Early and Middle Jurassic System in Beijing area. The study hold that the Yaopo Group was formatted from a inland lake and consisted of 5 sub strata series groups. Coal seam is a low level system formatted coal, a lake and high level system formatted coal and shallow lake formatted coal.
【CateGory Index】： P618.11;P539