Microstructural Insights into the Evolution of Ophiolitic Chromite from Luobusha
文献类型：期刊论文
| 作者 | Yang, Yu1,3; Yang, Jingsui1; Wu, Weiwei2; Cai, Pengjie1; Ma, Haitao1 |
| 刊名 | MINERALS
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 13期号:8页码:12 |
| 关键词 | ophiolitic chromite electron backscatter diffraction misorientation microstructural evolution crystallographic preferred orientation |
| DOI | 10.3390/min13081047 |
| 英文摘要 | The podiform chromitite found within the Luobusha ophiolite comprises characteristic nodules and massive chromitites. However, the exact origin of these formations remains a topic of ongoing debate. In this study, the microstructures of olivine and chromite are investigated to unravel their formation processes and shed light on the associated geodynamic mechanisms. EBSD analysis provides insights into chromitite and host peridotite deformation mechanisms. Olivine grains in the host dunite and nodular chromite exhibit crystallographic preferred orientations (CPOs) with D-type fabrics, which show a girdle distribution in the [010] and [001] axes, normal to the foliation plane of the sample. The massive and disseminated chromitite displays B-type and C-type olivine fabric, with a concentration of [001] axes parallel to the lineation of the sample. Crystal plastic deformation can be observed in the Luobusha chromite grains, highlighting intercrystalline deformation processes. Small grains lacking misorientation observed in the massive chromitite are likely attributed to heterogeneous nucleation. Chromite nodules are found to be a patchwork of subgrains with various orientations and high-angle boundary misorientation. The formation of Luobusha chromitite involves deep-seated crystallization, followed by amalgamation, and subsequent deformation within the mantle peridotite. These findings distinguish Luobusha chromitite from other ophiolitic chromite deposits, offering valuable insights into the deformation history and formation processes. |
| WOS关键词 | DYNAMIC RECRYSTALLIZATION ; PLASTIC-DEFORMATION ; ROCK INTERACTION ; SHEAR ZONE ; MANTLE ; PERIDOTITES ; WATER ; HARZBURGITE ; TRANSITION ; ANISOTROPY |
| 资助项目 | We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001055745900001 |
| 资助机构 | We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. ; We express our gratitude to three anonymous reviewers and the editors for their inspiring and meticulous comments. |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111433]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Yang, Yu; Wu, Weiwei |
| 作者单位 | 1.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Chinese Acad Geol Sci CAGS, SinoProbe Lab, Beijing 100037, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yu,Yang, Jingsui,Wu, Weiwei,et al. Microstructural Insights into the Evolution of Ophiolitic Chromite from Luobusha[J]. MINERALS,2023,13(8):12. |
| APA | Yang, Yu,Yang, Jingsui,Wu, Weiwei,Cai, Pengjie,&Ma, Haitao.(2023).Microstructural Insights into the Evolution of Ophiolitic Chromite from Luobusha.MINERALS,13(8),12. |
| MLA | Yang, Yu,et al."Microstructural Insights into the Evolution of Ophiolitic Chromite from Luobusha".MINERALS 13.8(2023):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
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