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    Author(s): Lisa L. Stillings; Michael C. Amacher
    Date: 2010
    Source: Chemical Geology. 269: 113-123.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (1.32 MB)

    Description

    Phosphorite from the Meade Peak Phosphatic Shale member of the Permian Phosphoria Formation has been mined in southeastern Idaho since 1906. Dumps of waste rock from mining operations contain high concentrations of Se which readily leach into nearby streams and wetlands. While the most common mineralogical residence of Se in the phosphatic shale is elemental Se, Se(0), Se is also an integral component of sulfide phases (pyrite, sphalerite and vaesite-pyritess) in the waste rock. It may also be present as adsorbed selenate and/or selenite, and FeSe2 and organo-selenides.

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    Citation

    Stillings, Lisa L.; Amacher, Michael C. 2010. Kinetics of selenium release in mine waste from the Meade Peak Phosphatic Shale, Phosphoria Formation, Wooley Valley, Idaho, USA. Chemical Geology. 269: 113-123.

    Keywords

    selenium, oxidation kinetics, leaching, black shale, marine shale, Phosphoria Formation

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