Fluoritites Produced by Crystallization of Carbonate-Fluoride Magma
文献类型：期刊论文
| 作者 | Stepanov, Aleksandr S.5; Aminov, Jovid1,6; Odinaev, Sharifjon1,2; Iskandarov, Farukh Sh3; Jiang, Shao-Yong5; Karmanov, Nikolai S.4 |
| 刊名 | JOURNAL OF PETROLOGY
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 65期号:4页码:8 |
| 关键词 | fluoritite fluorite carbonatite REE alkaline magma |
| ISSN号 | 0022-3530 |
| DOI | 10.1093/petrology/egae033 |
| 英文摘要 | Fluorite-dominated rocks are occasionally found in association with carbonatites, but their geologic and petrologic relations are rarely reported. The Dunkeldyk area of the Pamir mountains in south-eastern Tajikistan contains dikes of distinctive rocks composed of calcite, fluorite, celestine-barite, sulfides, apatite, with minor quartz, biotite, and REE fluorcarbonates. The dikes have sharp contacts with the host (meta-)sedimentary rocks and layering with ribbons, ranging from fluorite-bearing calcite carbonatites to fluoritites (rocks with >50% fluorite). The fluoritites are characterized by high Ca, F, Ba, Sr, REE, and S coupled with anomalously low O. The geologic relations and textures suggest a magmatic origin of the dikes from melts close to calcite-fluorite eutectic that experienced nucleation-controlled differentiation during the crystallization of dikes and the formation of fluoritite cumulates in larger intrusions. The Dunkeldyk dikes demonstrate that sizable geological bodies of fluorite-dominated rocks could form from carbonate-fluoride melts originating from the differentiation of alkaline silicate magmas. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001208855400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/77069]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Stepanov, Aleksandr S. |
| 作者单位 | 1.Natl Acad Sci Tajikistan, Inst Geol Earthquake Engn & Seismol, Dushanbe 734063, Tajikistan 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Peoples R China 3.Tajik Natl Univ, Dept Mineral & Petrog, Dushanbe 734025, Tajikistan 4.Russian Acad Sci, VS Sobolev Inst Geol & Mineral, Siberian Branch, pr Akad Koptyuga 3, Novosibirsk 630090, Russia 5.China Univ Geosci, Collaborat Innovat Ctr Explorat Strateg Mineral Re, Sch Earth Resources, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China 6.Univ Cent Asia, Dept Earth & Environm Sci, Khorog 736000, Tajikistan |
| 推荐引用方式 GB/T 7714 | Stepanov, Aleksandr S.,Aminov, Jovid,Odinaev, Sharifjon,et al. Fluoritites Produced by Crystallization of Carbonate-Fluoride Magma[J]. JOURNAL OF PETROLOGY,2024,65(4):8. |
| APA | Stepanov, Aleksandr S.,Aminov, Jovid,Odinaev, Sharifjon,Iskandarov, Farukh Sh,Jiang, Shao-Yong,&Karmanov, Nikolai S..(2024).Fluoritites Produced by Crystallization of Carbonate-Fluoride Magma.JOURNAL OF PETROLOGY,65(4),8. |
| MLA | Stepanov, Aleksandr S.,et al."Fluoritites Produced by Crystallization of Carbonate-Fluoride Magma".JOURNAL OF PETROLOGY 65.4(2024):8. |
入库方式： OAI收割
来源：广州地球化学研究所
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