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1Academic Journal
المؤلفون: Xiaoshuai Wang, Yifan Chen, Yuegang Tang, Rajender Gupta, Harold H. Schobert, James C. Hower, Longyi Shao, Tengda Ma
مصطلحات موضوعية: Ecology, Sociology, Inorganic Chemistry, Astronomical and Space Sciences not elsewhere classified, Biological Sciences not elsewhere classified, unusual ge enrichments, favor ge enrichments, rich coal resources, ecosystem environment ranged, 6 coal seam, g ), marsh, 6 seam, coal maceral, ecosystem environments, depositional environment, rich coals, cretaceous ge, wulantuga mine, top based, sufficient sources, study provides, shengli coalfield, results show, reducing condition, northeastern china, new perspective, four stages, favorable conditions, different mires