Garnet U-Pb dating and magnetite geochemistry: Constraints on the origin of Fe mineralization in the Huogeqi polymetallic deposit, Northern China
文献类型：期刊论文
| 作者 | Xu, Chongwen5; Zhao, Xu4,5,7; Huizenga, Jan Marten1,2,3; Wei, Junhao5; Hu, Yue5,6; Zhao, Zhixin5 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2023-12-01 |
| 卷号 | 163页码:16 |
| 关键词 | Huogeqi polymetallic deposit Garnet U-Pb dating Langshan Magnetite Mineral geochemistry |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2023.105747 |
| 英文摘要 | The Huogeqi Fe polymetallic deposit, which contains 48.17 Mt Fe, occurs in tremolite-diopside rocks of the Neoproterozoic Langshan Group in the north China. This study focuses on the magnetite mineralogy, texture and chemical composition, and U-Pb geochronology of garnet associated with magnetite and zircon from the granitoid related to mineralization in order to constrain the origin of Fe mineralization in Huogeqi deposit. LA-ICPMS U-Pb dating of magnetite-bearing garnets yields a lower intercept age of 277.5 +/- 8.7 Ma, which is coeval with the emplacement age of the mineralized-related granitoid (275.3 +/- 1.3 Ma). Three types of magnetite were formed in the Huogeqi deposit, including Mt-A (coarse-grained disseminated), Mt-B (stratiform and fine-grained dense disseminated), and Mt-C (massive). The Mt-A can be subdivided into high-Ti Mt-A1 and relatively low-Ti porous and fractured Mt-A2. The Mt-B can be subdivided into porous Mt-B1 with relatively high V and low Ti contents, dark porous Mt-B2 with a relatively low V contents, porous inclusion-rich Mt-B3 with low Fe and V contents, and high Si and Mg contents, and less-porous Mt-B4 with low Si and Mg contents. The Mt-C includes porous Mt-C1 with a low Ti contents and high Si, Al, Mn contents and less-porous Mt-C2 with low Si, Al, and Mn contents. The decreasing Ti and V contents in the subsequent magnetite types indicate progressive cooling of the mineralizing fluid, increasing oxygen fugacity, and more intense fluid-rock interaction. Dissolution and reprecipitation played an important role in the formation of different generations of magnetite of Mt-B and MtC. The magnetite from Huogeqi deposit has a high Ni/Cr mass ratio, a high Fe content, and a high (Ca + Al + Mn) value, and a low V content, a low Ni/(Cr + Mn) mass ratio, and a low (Ti + V) value. These geochemical characteristics indicate that the magnetite has a hydrothermal origin in a skarn-type deposit, which is related to Early Permian magmatism in the Langshan area in north China. |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001124411300001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/75436]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Zhao, Xu |
| 作者单位 | 1.Univ Johannesburg, Dept Geol, POB 524,Auckland Pk, ZA-2006 Johannesburg, South Africa 2.James Cook Univ, Econ Geol Res Inst EGRU, Coll Sci & Engn, Townsville, Qld 4811, Australia 3.Norwegian Univ Life Sci, Fac Environm Sci & Nat Resource Management, POB 5003, NO-1432 As, Norway 4.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 5.China Univ Geosci, Sch Earth Resources, Wuhan 430074, Peoples R China 6.Shandong Gold Geol & Mineral Explorat Co Ltd, Yantai 261499, Peoples R China 7.China Univ Geosci, Sch Earth Resources, Lumo Rd 388, Wuhan 430074, Hubei Province, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Chongwen,Zhao, Xu,Huizenga, Jan Marten,et al. Garnet U-Pb dating and magnetite geochemistry: Constraints on the origin of Fe mineralization in the Huogeqi polymetallic deposit, Northern China[J]. ORE GEOLOGY REVIEWS,2023,163:16. |
| APA | Xu, Chongwen,Zhao, Xu,Huizenga, Jan Marten,Wei, Junhao,Hu, Yue,&Zhao, Zhixin.(2023).Garnet U-Pb dating and magnetite geochemistry: Constraints on the origin of Fe mineralization in the Huogeqi polymetallic deposit, Northern China.ORE GEOLOGY REVIEWS,163,16. |
| MLA | Xu, Chongwen,et al."Garnet U-Pb dating and magnetite geochemistry: Constraints on the origin of Fe mineralization in the Huogeqi polymetallic deposit, Northern China".ORE GEOLOGY REVIEWS 163(2023):16. |
入库方式： OAI收割
来源：广州地球化学研究所
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