TY  - RPRT
TI  - Mineralogy and geochemistry of a superhigh-organic-sulfur coal, Yanshan Coalfield, Yunnan, China: Evidence for a volcanic ash component and influence by submarine exhalation
AU  - S. Dai
AU  - D. Ren
AU  - Y. Zhou
AU  - C. L. Chou
AU  - X. Wang
AU  - L. Zhao
AU  - Xudong Zhu
PY  - 2008
DO  - 10.1016/j.chemgeo.2008.06.030
UR  - https://pubs.usgs.gov/publication/70000058
ID  - 70000058
ER  -