Extensional settings favour initial REE enrichment in the parent granites of ion-adsorption REE deposits: implications from Late Permian to Triassic granites in South China
文献类型：期刊论文
| 作者 | Zhao, Xu1,3,4; Li, Ning-bo2,4; Niu, He-cai2,4; Tan, Shu-cheng1,3; Fu, Rui-xin2,4; Yang, Yu-yuan2,4 |
| 刊名 | JOURNAL OF THE GEOLOGICAL SOCIETY
 |
| 出版日期 | 2025-01-06 |
| 卷号 | 182期号:1页码:14 |
| ISSN号 | 0016-7649 |
| DOI | 10.1144/jgs2024-079 |
| 英文摘要 | To understand the generation of ion-adsorption REE deposits it is important to clarify the mechanism of REE enrichment in granites. We investigated Late Permian to Triassic granites from South China to investigate these issues. Ore-related granites with high REE contents (192-467 ppm) intruded in the Late Permian have high K2O and Zr + Ce + Nb + Y contents, high Ga/Al and K/Na ratios and low CaO contents, and are classified as aluminous A-type granite derived from melting of felsic igneous rocks in a high-temperature extensional setting. Ore-unrelated Triassic Pingtian granite with relatively low REE contents (81.7-127 ppm) is peraluminous with occurrence of muscovite, indicating an S-type affinity. Its high Rb/Sr and low CaO/Na2O ratios indicate magma origin from a metapelitic source related to a compressional setting owing to continental collision. In extensional settings in South China, the high-temperature conditions promoting melting of REE-rich accessory minerals and F-rich conditions improving the solubility of REE in the melts could be the reasons for the initial REE enrichment in these granites. Given that parent rocks for ion-adsorption REE deposits are all generated in extensional settings, it is considered that multiple tectonic stages and long-term extensional setting in South China contributed to generation of the specific ion-adsorption REE deposits in South China. |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001386108100002 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81884]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Li, Ning-bo |
| 作者单位 | 1.Yunnan Int Joint Lab Crit Mineral Resource, Kunming 650500, Peoples R China 2.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 3.Yunnan Univ, Sch Earth Sci, Kunming 650500, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Xu,Li, Ning-bo,Niu, He-cai,et al. Extensional settings favour initial REE enrichment in the parent granites of ion-adsorption REE deposits: implications from Late Permian to Triassic granites in South China[J]. JOURNAL OF THE GEOLOGICAL SOCIETY,2025,182(1):14. |
| APA | Zhao, Xu,Li, Ning-bo,Niu, He-cai,Tan, Shu-cheng,Fu, Rui-xin,&Yang, Yu-yuan.(2025).Extensional settings favour initial REE enrichment in the parent granites of ion-adsorption REE deposits: implications from Late Permian to Triassic granites in South China.JOURNAL OF THE GEOLOGICAL SOCIETY,182(1),14. |
| MLA | Zhao, Xu,et al."Extensional settings favour initial REE enrichment in the parent granites of ion-adsorption REE deposits: implications from Late Permian to Triassic granites in South China".JOURNAL OF THE GEOLOGICAL SOCIETY 182.1(2025):14. |
入库方式： OAI收割
来源：广州地球化学研究所
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