CARBONATITE DYKES AT BAYAN OBO, INNER-MONGOLIA, CHINA
文献类型：期刊论文
| 作者 | LEBAS, MJ; KELLER, J; TAO, KJ; WALL, F; WILLIAMS, CT; ZHANG, PS |
| 刊名 | MINERALOGY AND PETROLOGY
 |
| 出版日期 | 1992 |
| 卷号 | 46期号:3页码:195-228 |
| ISSN号 | 0930-0708 |
| 文献子类 | Article |
| 英文摘要 | Calcite-rich dykes occur in the thrust fold belt near the Bayan Obo rare earth element (REE) deposit. They cut a thrust inlier of granitic migmatite within folded Bayan Obo Group sediments of Proterozoic age. Cathodoluminescence, X-ray fluorescence and microprobe studies show that the rock is a calcite carbonatite with Sr-Mn-bearing calcite, magnesio-riebeckite, apatite, pyrochlore, K-feldspar and biotite. One dyke was chosen for detailed analysis. Its margin is strongly REE-mineralized with much monazite developed adjacent to zoned apatite. Secondary alteration is marked by the introduction of Fe and Mn. The adjacent migmatite is fenitized to a magnesio-riebeckite-albite rock. The sedimentary dolomite of the Bayan Obo Group is composed mainly of Mn-Sr-RE-bearing ferroan dolomite and contains bands of opaque grains, apatite, monazite, fluorite and taeniolite. Many trace element and isotope similarities between the carbonatite dyke and the sedimentary dolomite are revealed, and the evidence supports the possibility that the dolomite is a dolomitized carbonatite tuff. The Bayan Obo REE mineralization also shows geochemical similarities with the mineralization seen in the carbonatites, and a possible genetic connection is presented. |
| WOS关键词 | ISOTOPIC SYSTEMATICS ; SR ISOTOPE ; DEPOSITS ; ND |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:A1992JU71100003 |
| 出版者 | SPRINGER-VERLAG WIEN |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/80375]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | LEBAS, MJ |
| 作者单位 | 1.UNIV FREIBURG,INST MINERAL PETROG,W-7800 FREIBURG,GERMANY 2.CHINESE ACAD SCI,INST GEOL,BEIJING,PEOPLES R CHINA 3.BRITISH MUSEUM NAT HIST,DEPT MINERAL,LONDON SW7 5BD,ENGLAND |
| 推荐引用方式 GB/T 7714 | LEBAS, MJ,KELLER, J,TAO, KJ,et al. CARBONATITE DYKES AT BAYAN OBO, INNER-MONGOLIA, CHINA[J]. MINERALOGY AND PETROLOGY,1992,46(3):195-228. |
| APA | LEBAS, MJ,KELLER, J,TAO, KJ,WALL, F,WILLIAMS, CT,&ZHANG, PS.(1992).CARBONATITE DYKES AT BAYAN OBO, INNER-MONGOLIA, CHINA.MINERALOGY AND PETROLOGY,46(3),195-228. |
| MLA | LEBAS, MJ,et al."CARBONATITE DYKES AT BAYAN OBO, INNER-MONGOLIA, CHINA".MINERALOGY AND PETROLOGY 46.3(1992):195-228. |
入库方式： OAI收割
来源：地质与地球物理研究所
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