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ass="MsoNormal" style="margin: 0cm 0cm 0pt;">an lang="EN-US" style=’font-family: "Times New Roman","serif";’>As
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-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";’> andan>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";’>Ndan>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";’>, but with subsidiary
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.an>
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