Synchrotron Radiation mu-XRF Imaging Reveals Mn Zoning in Freshwater Pearls
文献类型：期刊论文
| 作者 | Gao, Jing1,5; Zhang, Jinli4; Wu, Wanghua3; Yen, Chien-Kuo2; Su, Wen1,5 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2022-12-08 |
| 页码 | 9 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/acs.jpcc.2c05988 |
| 英文摘要 | Chemical zoning is commonly seen in inorganic minerals, and it holds implications for magmatic processes, hydrothermal evolution, or metal mineralization. However, few studies are available on oscillatory zoning in biominerals, which carries the most direct and unique information on the biomineralization mechanism. This study investigates spatial and temporal resolution of trace element distributions in pearls that were cultivated in the Hyriopsis cumingii mantle (non-nucleated pearls and nucleated Akoya pearls) or visceral mass (nucleated Edison pearls) for 1-5 years. Using synchrotron radiation micro-X-ray fluorescence imaging, we find a variety of trace elements such as Sc, Cr, Mn, Cu, Zn, Ge, and Ba. The types of trace elements are slightly different for individuals. For the first time, submillimeter-scale Mn zoning is identified ubiquitously, concentric with the pearl, and exhibits increased concentrations toward the pearl margin. In non-nucleated pearls and nucleated Akoya pearls, the Mn zones are superposed with a spatially damped pattern with a decrease in the interzones. In contrast, no damped trends are observed in the Mn zones in nucleated Edison pearls. This difference may be due to different cultivation sites within mollusks that have different requirements for Mn during pearl growth. We suggest a growth model of dissipative structure for the Mn zoning in pearls, which depends upon the coupling between the interface kinetics and the diffusion of chemical species in the environment. The trace elements (including Mn) substitute Ca in aragonite isomorphically, based on Raman imaging. The scanning electron microscopy images show a periodic structure of aragonite platelets and organic matter of pearls. Locally in the Mn zones, there are minor defects on platelets, which may arise from the enrichment of trace elements. This study would develop a new research field for chemical zoning in minerals and introduce a new angle in understanding trace element incorporation in biominerals and the biomineralization processes. |
| WOS关键词 | TRACE-ELEMENTS ; SEAWATER ; GROWTH ; QUARTZ ; SHELL ; OSCILLATIONS ; PLAGIOCLASE ; ENERGETICS ; DIFFUSION ; MANGANESE |
| 资助项目 | National Natural Science Foundation of China[41902035] ; China Postdoctoral Science Foundation[2018M640179] ; China Postdoctoral Science Foundation[2019T120132] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000894671300001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/106969]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Gao, Jing |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Nei Hu Community Coll, Taipei 11493, Peoples R China 3.WITec Beijing Sci Technol Co Ltd, Beijing 100004, Peoples R China 4.Peking Univ, Sch Earth & Space Sci, Gem Appraisal Ctr, Beijing 100871, Peoples R China 5.Chinese Acad Sci, Inst Earth Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Jing,Zhang, Jinli,Wu, Wanghua,et al. Synchrotron Radiation mu-XRF Imaging Reveals Mn Zoning in Freshwater Pearls[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2022:9. |
| APA | Gao, Jing,Zhang, Jinli,Wu, Wanghua,Yen, Chien-Kuo,&Su, Wen.(2022).Synchrotron Radiation mu-XRF Imaging Reveals Mn Zoning in Freshwater Pearls.JOURNAL OF PHYSICAL CHEMISTRY C,9. |
| MLA | Gao, Jing,et al."Synchrotron Radiation mu-XRF Imaging Reveals Mn Zoning in Freshwater Pearls".JOURNAL OF PHYSICAL CHEMISTRY C (2022):9. |
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。