Composition of garnet from the Yongping Cu skarn deposit, South China: Implication for ore-fluid evolution
文献类型：期刊论文
| 作者 | Tian, Mingjun2,3; Li, Xiaochun1,5; Guo, Jinghui2,5; Li, Yonggang2,5; Zhang, Yu4 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 139页码:14 |
| 关键词 | Garnet REE content Ore-forming fluid Skarn The Yongping deposit |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2021.104585 |
| 英文摘要 | Garnet typically occurs as a major constituent in skarn deposits. It commonly displays variations in texture and composition due to changing physicochemical conditions. In this study, we integrate textural and geochemical studies of garnet from the Yongping Cu skarn deposit (South China) to constrain the nature and evolution of the ore-forming fluids. In the Yongping deposit, garnet shows red or brown colors in proximal skarns, and shows green color in distal skarns. All types of garnet grains show a core-rim texture. The cores generally have higher proportions of Fe and lower proportions of Al than the rims. In red or grown garnet grains, the Fe-rich cores have relatively high contents of REE, typically with an upward-facing parabola pattern with a peak at Ce or Pr. The rim domains have lower contents of REE, in particular La and Ce, than the cores. The compositional differences between the cores and rims reflect a transition from oxidized, Fe3+ - and REE-rich fluids to fluids with lower contents of Fe3+ and REE. In green garnet, the Fe-rich cores have obviously lower contents of REE than the red/ brown garnet cores, and their REE patterns resemble those of ore-hosting marbles. It indicates that the distal fluids were relatively poor in REE, and partial REE in garnet may be sourced from the ore-hosting marbles. The rims of green garnet usually have obviously higher contents of REE than the cores, which may imply ingress of new pulses of REE-rich, magmatic-hydrothermal fluids during the garnet growth process. In both proximal and distal skarns, the prograde garnet grains may be partially replaced by Al-rich domains in the retrograde skarn alteration stage. The replaced domains generally have higher contents of F, Ti, HREE and lower contents of LREE than the original domains. It indicates that the metasomatic fluids were relatively reducing, and have higher contents of F, Ti and HREE than the earlier-stage fluids. In general, the composition of garnets can record multiple pluses of fluid activity and the complicated physic-chemical evolution paths of the fluids. The influence of wall-rocks on the compositions of minerals is also indicated. Thus, garnet from skarns can preserve a wealth of information regarding mineralization processes in their crystal growth stratigraphy. |
| WOS关键词 | RARE-EARTH-ELEMENTS ; LA-ICP-MS ; FE-AU DEPOSIT ; COPPER-DEPOSIT ; HYDROTHERMAL SYSTEMS ; GRANDITE GARNET ; TRACE-ELEMENTS ; CONSTRAINTS ; MINERALIZATION ; SCHEELITE |
| 资助项目 | Major State Research Development Project from ministry of Science and Technology of China[2016YFC0600109] ; Jiangxi Copper Corporation Limited |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000729452400001 |
| 出版者 | ELSEVIER |
| 资助机构 | Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Major State Research Development Project from ministry of Science and Technology of China ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited ; Jiangxi Copper Corporation Limited |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103900]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Li, Xiaochun; Guo, Jinghui |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Beijing Gen Res Inst Min & Met Technol Grp, Beijing 102628, Peoples R China 4.Henan Inst Geol Survey, Zhengzhou 450001, Peoples R China 5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Mingjun,Li, Xiaochun,Guo, Jinghui,et al. Composition of garnet from the Yongping Cu skarn deposit, South China: Implication for ore-fluid evolution[J]. ORE GEOLOGY REVIEWS,2021,139:14. |
| APA | Tian, Mingjun,Li, Xiaochun,Guo, Jinghui,Li, Yonggang,&Zhang, Yu.(2021).Composition of garnet from the Yongping Cu skarn deposit, South China: Implication for ore-fluid evolution.ORE GEOLOGY REVIEWS,139,14. |
| MLA | Tian, Mingjun,et al."Composition of garnet from the Yongping Cu skarn deposit, South China: Implication for ore-fluid evolution".ORE GEOLOGY REVIEWS 139(2021):14. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。