TY - RPRT TI - A high-pyrite semianthracite of Late Permian age in the Songzao Coalfield, southwestern China: Mineralogical and geochemical relations with underlying mafic tuffs AU - S. Dai AU - X. Wang AU - W. Chen AU - D. Li AU - C. L. Chou AU - Y. Zhou AU - Chen Zhu AU - H. Li AU - Xudong Zhu AU - Y. Xing AU - W. Zhang AU - J. Zou PY - 2010 DO - 10.1016/j.coal.2010.06.004 UR - https://pubs.usgs.gov/publication/70037624 ID - 70037624 ER -