地球学报Issue(z1)：127-134,8.DOI:10.3975/cagsb.2013.s1.19
滇东南丘北县大铁铝土矿稀土元素特征研究
REE Characteristics of the Datie Bauxite Deposit in Qiubei County, Northwest Yunnan Province
摘要
Abstract
With the aluminum-bearing rock series of the Datie bauxite deposit in Qiubei County as the study object, the authors studied REE characteristics of aluminum-bearing rock series and underlying limestone and basalt by means of ICP-MS analysis. The results show that the REE patterns of aluminum-bearing rock series in the Datie bauxite deposit are right-oblique curves, which are similar to REE pattern curves of the underlying Maping For-mation and Huanglong Formation limestone but are quite different from the REE pattern curves of the Emeishan basalt. The limestone has fairly obvious Ce negative anomalies and Eu negative anomalies, some bauxite and fer-rallitic rocks have obvious Ce positive anomalies and fairly obvious Eu negative, whereas most bauxite, ferrallitic rocks and aluminous claystone have no obvous Ce and Eu anomalies. REE characteristics of the aluminum-bearing rock series suggest that the ore-forming materials were derived from the underlying limestone instead of from the basalt, that the ore-forming materials of the bauxite were sourced from the weathering crust with small transport distance, and that the mineralization had no evident relationship with the hydration of the sea water.关键词
丘北/大铁/铝土矿/稀土元素/成矿物质Key words
Qiubei/Datie/bauxite/REE/metallogenic material分类
天文与地球科学引用本文复制引用
王行军,王根厚,周洁,崔银亮,张道红,李伟清,范良军..滇东南丘北县大铁铝土矿稀土元素特征研究[J].地球学报,2013,(z1):127-134,8.基金项目
本文由“云南省铝土矿成矿规律与成矿预测研究”项目(编号:20100610-02)资助。 （编号:20100610-02）
