The Chemistry of Niobium Mineralisation at Bayan Obo, Inner Mongolia, China: Constraints on the Hydrothermal Precipitation and Alteration of Nb-Minerals
详细信息   
摘要

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    well as world class Fe and REE resources the Bayan Obo mineral deposits also
    hosts significant niobium resources. Niobium in this study is primarily hosted
    in aeschynite-
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    amounts of pyrochlore, fergusonite-
an>an style=’font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman";’>(an>an lang="EN-US" style=’font-family: "Times New Roman","serif";’>Cean>an style=’font-family: 宋体; mso-ascii-font-family: "Times New Roman"; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: "Times New Roman";’>)an>an lang="EN-US" style=’font-family: "Times New Roman","serif";’>, fersmite and columbite. In this
    paper, the authors report on the paragenetic and textural setting of aeschynite,
    pyrochlore and fergusonite in the main ore bodies and in a carbonatite dyke.
    The presence of hydrothermal Nb resources at Bayan Obo suggests there may be
    potential for further Nb discoveries in the area, whilst the trends in element
    mobility during alteration have significant implications for the utility of A-B
    oxides as components of materials for immobilisation of radionuclides.
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