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Size and density separates of low-temperature-ashed coal from the Powhatan No. 6 mine, Ohio, have been used to determine the mode of occurrence of 28 minor and trace elements in coal. The size distribution of the major minerals has been determined, and correlations of trace elements with major minerals have been made. The role of minor minerals in the mode of occurrence of trace elements is also discussed. Instrumental-neutron-activation analysis was used to determine elemental concentrations, and X-ray diffraction and scanning electron microscopy were used for mineral identification. ?? 1984.
Additional Publication Details
Distribution of trace elements in coal from the Powhatan No. 6 mine, Ohio