REE daughter minerals trapped in fluid inclusions in the giant Bayan Obo REE-Nb-Fe deposit, Inner Mongolia, China
文献类型：期刊论文
| 作者 | Fan, HR; Xie, YH; Wang, KY; Tao, KJ |
| 刊名 | INTERNATIONAL GEOLOGY REVIEW
 |
| 出版日期 | 2004-07-01 |
| 卷号 | 46期号:7页码:638-645 |
| ISSN号 | 0020-6814 |
| 文献子类 | Article |
| 英文摘要 | The Bayan Obo REE-Nb-Fe deposit hosts the world's largest known REE resource. The deposit consists of replacement bodies hosted in dolomite marble and of magnetite. REE fluorocarbonates, fluorite aegirine, amphibole, calcite, and barite. Three types of fluid inclusions have been recognized: two-phase aqueous liquid-vapor (L-V), two- to three-phase CO2 (C), and three-phase liquid-vapor-solid (L-V-S) inclusions. Microthermometry measurements indicate that the carbonic phase in C inclusions is nearly pure CO,. During heating experiments, hexagonal or irregular-shaped daughter minerals in L-V-S inclusions complete dissolution at temperatures of 420-480degreesC and recrystallize again at about 400-320degreesC. These show that daughter minerals in multiphase inclusions in mineralizing veins were crystallized from trapped fluids, and are real daughter minerals. REE-carbonates, halite, sylvite, barite, calcite, and pyroxene (?) have been identified on the basis of crystal habit (microscopic and SEM) and EDX analysis. By comparison with Raman spectra of reference REE-carbonate mineral crystals, hexagonal or irregular-shaped daughter minerals in L-V-S inclusions might be cebaite and bastnaesite. The presence of REE-carbonates as an abundant solid in the ore-forming veins shows that the original ore-forming fluids were very rich in BEE, and therefore had the potential to produce economic BEE ores at Bayan Obo. |
| WOS关键词 | ORE-DEPOSIT ; CARBONATITE DYKE ; NORTH CHINA ; FLUORITE ; GENESIS ; HOST |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000222487300005 |
| 出版者 | V H WINSTON & SON INC |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79715]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Fan, HR |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Curtin Univ Technol, Sch Appl Geol, Perth, WA 6001, Australia |
| 推荐引用方式 GB/T 7714 | Fan, HR,Xie, YH,Wang, KY,et al. REE daughter minerals trapped in fluid inclusions in the giant Bayan Obo REE-Nb-Fe deposit, Inner Mongolia, China[J]. INTERNATIONAL GEOLOGY REVIEW,2004,46(7):638-645. |
| APA | Fan, HR,Xie, YH,Wang, KY,&Tao, KJ.(2004).REE daughter minerals trapped in fluid inclusions in the giant Bayan Obo REE-Nb-Fe deposit, Inner Mongolia, China.INTERNATIONAL GEOLOGY REVIEW,46(7),638-645. |
| MLA | Fan, HR,et al."REE daughter minerals trapped in fluid inclusions in the giant Bayan Obo REE-Nb-Fe deposit, Inner Mongolia, China".INTERNATIONAL GEOLOGY REVIEW 46.7(2004):638-645. |
入库方式： OAI收割
来源：地质与地球物理研究所
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