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In Yutangba selenium deposit, the REE content of siliceous rocks is Iow(38.9x10-6), and enriched in LREE. In Ziyang selenium-rich area, it is from (12.0-37.6)x10-6, In both of two areas, there exist Ce negative anomaly and Eu positive anomaly.
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渔塘坝硒矿区硅质岩的REE总量较低,平均为38.;9×10~(-6),紫阳硒富集区硅质岩REE总量除个别较高(达110×10~(-6)以上)外,总体也较低(12
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