云南会泽大黑山铝土矿地球化学特征及其物源分析

王正江, 郭婷婷, 俞赛赢, 程琰勋, 张春波, 张宇栋

云南会泽大黑山铝土矿地球化学特征及其物源分析

王正江, 郭婷婷, 俞赛赢, 程琰勋, 张春波, 张宇栋

1. 昆明理工大学国土资源工程学院, 云南昆明 650093;
2. 云南省地质调查院, 云南昆明 650216;
3. 武警黄金第十支队, 云南昆明 637350

收稿日期: 2015-08-02

修回日期: 2015-10-12

刊出日期: 2016-03-30

Geochemistry and provenance analysis of the Daheishan bauxite deposit in Huize, Yunnan

WANG Zheng-jiang, GUO Ting-ting, YU Sai-ying, CHENG Yan-xun, ZHANG Chun-bo, ZHANG Yu-dong

1. Faculty of Land and Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China;
2. Yunnan Institute of Geological Survey, Kunming 650216, Yunnan, China;
3. No. 10 Gold Exploration Party, Chinese Armed Police Force, Kunming 637350, Yunnan, China

Received Date: 02 August 2015

Revised Date: 12 October 2015

Publish Date: 30 March 2016

摘要

摘要: 大黑山铝土矿赋存于上二叠统宣威组底部,下伏地层为峨眉山玄武岩。矿石结构主要以泥晶结构为主,具有少量鲕状、粒屑结构。矿石构造以致密块状构造为主,局部呈层状、似层状。铝土矿石中Al₂O₃与Fe₂O₃、SiO₂呈现较好的负相关关系,TiO₂与Zr、Hf、Nb、Ta相关性较好,Zr-Hf、Nb-Ta的相关性拟合度很高。铝土矿与峨眉山玄武岩样品具有相似的稀土元素配分模式。综合稳定元素相关性、微量元素及稀土元素标准化图解、lgNi和lgCr二元图解等分析方法对大黑山铝土矿的成矿物质来源进行探讨,研究结果表明铝土矿的成矿物质来源主要来自峨眉山玄武岩。
- 铝土矿 /
- 地球化学 /
- 成矿物质来源 /
- 会泽大黑山
Abstract: The Daheishan bauxite deposit in Huize, Yunnan resides in the basal part of the Upper Permian Xuanwei Formation underlain by the Emeishan basalts. The bauxite ores from the Daheishan deposit display micritic, oolitic and granular textures, and densely massive, stratified and stratoid structures. There are both negative correlations between Al₂O₃ and Fe₂O₃, and Al₂O₃ and SiO₂ and good correlations between TiO₂ and Zr, Hf, Nb and Ta, Zr and Hf, Nb and Ta. The bauxite and basalt samples in this study exhibit similar normalized distribution patterns. The ore-forming matter may be derived from the underlying Emeishan basalts, as indicated by LogNi and LogCr diagram.
- bauxite /
- geochemistry /
- provenance /
- Daheishan in Huize

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云南会泽大黑山铝土矿地球化学特征及其物源分析

1. 昆明理工大学国土资源工程学院, 云南 昆明 650093;2. 云南省地质调查院, 云南 昆明 650216;3. 武警黄金第十支队, 云南 昆明 637350

Geochemistry and provenance analysis of the Daheishan bauxite deposit in Huize, Yunnan

1. Faculty of Land and Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China;2. Yunnan Institute of Geological Survey, Kunming 650216, Yunnan, China;3. No. 10 Gold Exploration Party, Chinese Armed Police Force, Kunming 637350, Yunnan, China

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1. 昆明理工大学国土资源工程学院, 云南昆明 650093;
2. 云南省地质调查院, 云南昆明 650216;
3. 武警黄金第十支队, 云南昆明 637350

1. Faculty of Land and Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China;
2. Yunnan Institute of Geological Survey, Kunming 650216, Yunnan, China;
3. No. 10 Gold Exploration Party, Chinese Armed Police Force, Kunming 637350, Yunnan, China