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Coal and coal byproducts may be economically important resources if enriched in critical minerals such as rare earth elements. The organic carbon they contain could be converted to gas using stimulated microbial methanogenesis. In this study, samples were collected from two underground mine sites in the bituminous region of southwest Pennsylvania to assess the potential for these uses from different types of stockpiled coal, including raw coal, clean coal, and refuse coal. Samples were analyzed for coal quality using proximate, ultimate, and sulfur forms analyses, and for major and trace elements. These data complement previous USGS studies on coal waste conducted in Pennsylvania and the Illinois Basin.
Inductively coupled plasma - optical emission spectrometry (ICP-OES) analysis data compiled using sample preparation procedures outlined by ASTM D2013/D2013M-18 and ASTM D6357, and using two independent sets of element standards for instrument calibration. Additional analysis methodologies are described in detail in the resulting publication Rare earth elements and yttrium in Pennsylvanian coals and shales in the eastern part of the Illinois Basin (Mastalerz et al., 2020).
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This dataset contains bulk chemical data for fly ash samples from the Atkinson Heat and Power Plant in Fairbanks, AK and National Institute for Standards and Technology (NIST) Standard Reference Materials (SRM) used for quality assurance and quality control.


    map background search result map search result map Bulk Chemistry Data from Alaskan Stoker-Boiler Fly Ash Rare earth elements in Pennsylvanian coals and shales in Indiana Geochemical Data for Coal Wastes from Bituminous Coal Mining in Pennsylvania, 2022 Geochemical Data for Coal Wastes from Bituminous Coal Mining in Pennsylvania, 2022 Bulk Chemistry Data from Alaskan Stoker-Boiler Fly Ash Rare earth elements in Pennsylvanian coals and shales in Indiana