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An example of high-T, high-symmetry crystallization: Spherical (Mg, Fe)-oxides formed by particle attachment in the shocked martian meteorite Northwest Africa 7755

文献类型：期刊论文

作者Zhang, Ai-Cheng1,2; Wang, Shu-Zhou1,2; Tomioka, Naotaka3; Lu, Xian-Cai1,2; Ding, Zhi-Yuan4,5,6; Ma, Chi7; Wang, Peng4,5,6; Chen, Jia-Ni1,2; Xu, Sheng4,5,6; Gu, Li-Xin8
刊名AMERICAN MINERALOGIST
出版日期2019
卷号104期号:1页码:150-157
关键词Crystallization by particle attachment ferropericlase magnesioferrite shock-induced melt pocket martian meteorite Northwest Africa 7755
ISSN号0003-004X
DOI10.2138/am-2019-6597
英文摘要Crystallization is one of the most fundamental processes for both solid inorganic and organic materials in nature. The classical crystallization model mainly involves the monomer-by-monomer addition of simple chemical species. Recently, nanoparticle attachment has been realized as an important mechanism of crystallization in comparatively low-temperature aqueous natural and synthetic systems. However, no evidence of crystallization by particle attachment has been reported in petrologically important melts. In this study, we described spherical (Mg, Fe)-oxides with a protrusion surface in a shock-induced melt pocket from the martian meteorite Northwest Africa 7755. Transmission electron microscopic observations demonstrate that the (Mg, Fe)-oxides are structure-coherent intergrowth of ferropericlase and magnesioferrite. The magnesioferrite is mainly present adjacent to the interface between (Mg, Fe)-oxides spherules and surrounding silicate glass, but not in direct contact with the silicate glass. Thermodynamic and kinetic considerations suggest that development of the spherical (Mg, Fe)-oxides can be best interpreted with crystallization by particle attachment and subsequent Ostwald ripening. This indicates that crystallization by particle attachment can also take place in high-temperature melts and has potential implications for understanding the nucleation and growth of early-stage crystals in high-temperature melts, such as chondrules in the solar nebula, erupted volcanic melts, and probably even intrusive magmas.
WOS关键词ORIENTED ATTACHMENT ; CRYSTAL-GROWTH ; NANOCRYSTALS ; MINERALS ; KINETICS ; RATIOS
资助项目Natural Science Foundations of China[41673068] ; Jiangsu Province of China[BK20170017]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000454883600015
出版者MINERALOGICAL SOC AMER
资助机构Natural Science Foundations of China ; Natural Science Foundations of China ; Jiangsu Province of China ; Jiangsu Province of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Jiangsu Province of China ; Jiangsu Province of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Jiangsu Province of China ; Jiangsu Province of China ; Natural Science Foundations of China ; Natural Science Foundations of China ; Jiangsu Province of China ; Jiangsu Province of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/90225]  
专题地质与地球物理研究所_科技支撑系统
通讯作者Zhang, Ai-Cheng
作者单位1.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing 210046, Jiangsu, Peoples R China
2.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210046, Jiangsu, Peoples R China
3.Japan Agcy Marine Earth Sci & Technol JAMSTEC, Kochi Inst Core Sample Res, Nanko Ku, Kochi 7838502, Japan
4.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
5.Nanjing Univ, Coll Engn & Appl Sci, Nanjing 210093, Jiangsu, Peoples R China
6.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
7.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
8.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
9.Thermos Fisher Sci, 1 Jalan Kilang Timor,04-02 Pacific Tech Ctr, Singapore 159303, Singapore
10.Chinese Acad Sci, Inst Geochem, Guiyang 550081, Guizhou, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Ai-Cheng,Wang, Shu-Zhou,Tomioka, Naotaka,et al. An example of high-T, high-symmetry crystallization: Spherical (Mg, Fe)-oxides formed by particle attachment in the shocked martian meteorite Northwest Africa 7755[J]. AMERICAN MINERALOGIST,2019,104(1):150-157.
APA Zhang, Ai-Cheng.,Wang, Shu-Zhou.,Tomioka, Naotaka.,Lu, Xian-Cai.,Ding, Zhi-Yuan.,...&Wang, Ru-Cheng.(2019).An example of high-T, high-symmetry crystallization: Spherical (Mg, Fe)-oxides formed by particle attachment in the shocked martian meteorite Northwest Africa 7755.AMERICAN MINERALOGIST,104(1),150-157.
MLA Zhang, Ai-Cheng,et al."An example of high-T, high-symmetry crystallization: Spherical (Mg, Fe)-oxides formed by particle attachment in the shocked martian meteorite Northwest Africa 7755".AMERICAN MINERALOGIST 104.1(2019):150-157.

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来源：地质与地球物理研究所

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