Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Chu, Gaobin1,2,3; Chen, Huayong1,2,3,4 ; Feng, Yuzhou1,2,3; Wu, Chao1,2,3; Li, Shasha5; Zhang, Yuan6; Lai, Chun-Kit7
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| Are South China granites special in forming ion-adsorption REE deposits | |
| Source Publication | GONDWANA RESEARCH
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| ISSN | 1342-937X |
| 2024 | |
| Volume | 125Pages:82-90 |
| DOI | 10.1016/j.gr.2023.08.010 |
| Language | 英语 |
| WOS Research Area | Geology |
| Abstract | Ion-adsorption REE deposits associated with clay minerals are the main global HREE producer. The majority of these deposits are formed by the weathering of granites in South China, but whether there is any fundamental difference between the granites in and outside South China is still unclear. Besides, an effective evaluation system of granite mineralization potential is urgently needed for HREE exploration. To answer this question, we compiled a global granite geochemical dataset from within (n = 1932) and outside (n = 6109) South China, together with a dataset of representative REE deposits in South China (n = 128). The geochemical comparation shows that the South China granites share similar REE contents with those of many granites from places outside South China. Such similarity has also been found between REE ore-related and ore-barren granites in South China. This shows that granites from outside South China could also have ore-forming potential. Warm humid climate and quasi-equalized crustal state promote chemical weathering to continuously leach REEs and store them in the weathering crust. The enrichment ratio (Rx) can be used to quantify the climatic effect between orebodies and parent rocks. The calculated average Enrichment Ratios (Rx) of LREE-and HREE-rich deposits are 2.41 and 2.68, respectively. Sufficient REE content in granite is the prerequisite for mineralization, and we propose that the combination of the minimum REE + Y (172 and 108 ppm in LREE-and HREE-rich parent rocks, respectively) and REE oxide ratio (1.32) can reveal the granite metallogenic potential. Together with the suitable tropical and temperate climate area with ion-adsorption REE deposits, we further identified certain regions with high REE mineralization potential outside South China to assist future exploration. (c) 2023 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved. |
| Keyword | Ion-adsorption REE deposit Granite South China Global REE exploration |
| WOS ID | WOS:001163128200001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/76283 |
| Collection | 中国科学院矿物学与成矿学重点实验室 |
| Corresponding Author | Chen, Huayong |
| Affiliation | 1.Chinese Acad Sci, CAS Key Lab Mineral & Metallogeny, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Guangdong Nonferrous Met Geol Explorat Inst, Guangzhou 510640, Peoples R China 6.Guangdong Geol Survey Inst, Guangzhou 510110, Peoples R China 7.Fortescue Met Grp Ltd, Global Project Generat & Targeting, East Perth 6004, Australia |
| Recommended Citation GB/T 7714 | Chu, Gaobin,Chen, Huayong,Feng, Yuzhou,et al. Are South China granites special in forming ion-adsorption REE deposits[J]. GONDWANA RESEARCH,2024,125:82-90. |
| APA | Chu, Gaobin.,Chen, Huayong.,Feng, Yuzhou.,Wu, Chao.,Li, Shasha.,...&Lai, Chun-Kit.(2024).Are South China granites special in forming ion-adsorption REE deposits.GONDWANA RESEARCH,125,82-90. |
| MLA | Chu, Gaobin,et al."Are South China granites special in forming ion-adsorption REE deposits".GONDWANA RESEARCH 125(2024):82-90. |
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