Coals within the Tongzi Coalfield in Guizhou Province, Southwest China Baoqing Li 1, *, Xinguo Zhuang 1 ...Petroleum Resources (China University of Geosciences), Ministry of Education, Wuhan 430074, China; xgzhuang@cug...Geological Team of Guizhou Province Geology and Mineral Bureau, Zunyi 563000, China; wanw535@126.com Correspondence:... Abstract: The lowermost Late Permian coal seam (C4 Coal) in the Tongzi Coalfield offers an opportunity...mineralogical and geochemical patterns of the C4 Coal. The minerals are mainly dominated by pyrite and