Nanominerals and ultrafine particles in sublimates from the Ruth Mullins coal fire, Perry County, Eastern Kentucky, USA
作者： Luis F.O. Silva , Marcos L.S. Oliveira , Erika R. Neace , Jennifer M.K. O'Keefe , Kevin R. Henke
DOI: 10.1016/J.COAL.2010.12.002
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摘要: Abstract Mineral sublimates from the Ruth Mullins fire in abandoned underground and surface mines high volatile A bituminous Middle Pennsylvanian Hazard No. 7 coalbed, Perry County, Kentucky, were examined by optical mineralogy, X-ray diffraction (XRD), high-resolution–transmission electron microscopy (HR-TEM). Optical examination revealed presence of salammoniac a fine, unidentified fibrous mineral. XRD also showed salammoniac, along with trace amounts quartz, kaolinite, and, possibly, phengite. Both cubic dendritic forms observed HR-TEM. Gypsum, jarosite, pseudomorphs after pyrite, Fe-minerals, including Cr-bearing hematite association Dehydration jarosite can lead to formation less hydrous Fe-sulfates hematite.
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