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https://www.usgs.gov/publications/relations-among-ph-sulfate-and-metals-concentrations-anthracite-and-bituminous-coal
Water-quality data for discharges from 140 abandoned mines in the Bituminous and Anthracite Coalfields of Pennsylvania illustrate relations among pH, sulfate,...
relationsamongphsulfatemetals
https://www.usgs.gov/publications/petrographic-and-vitrinite-reflectance-analyses-a-suite-high-volatile-bituminous-coal
This report presents vitrinite reflectance and detailed organic composition data for nine high volatile bituminous coal samples. These samples were selected to...
vitrinite reflectancepetrographicanalysessuitehigh