Shape and porosity of refractory inclusions in CV3 chondrites: A micro-computed tomography (mu CT) study
文献类型：期刊论文
| 作者 | Zhang, Mingming1,4; Clark, Brett3; King, Ashley J.1,2; Russell, Sara S.1; Lin, Yangting4 |
| 刊名 | METEORITICS & PLANETARY SCIENCE
 |
| 出版日期 | 2021-03-17 |
| 页码 | 15 |
| ISSN号 | 1086-9379 |
| DOI | 10.1111/maps.13635 |
| 英文摘要 | Refractory calcium-aluminum-rich inclusions (CAIs) and amoeboid olivine aggregates (AOAs) in chondritic meteorites are the earliest solids of our solar system, bearing the information of nebular condensation as well as accretion and asteroidal shock and metasomatism processes. While the compositions of refractory inclusions have been intensely studied for similar to 50 years, their physical properties such as shape and porosity are poorly constrained. Here, we present a microcomputed tomography (mu CT) study on 16 refractory inclusions of condensate origin in five CV3 chondrites. We find that they are prolate or triaxial in shape with very rough morphologies. The CAIs have nodular textures and are thought to form by agglomerating individual nodules via collision-induced bouncing and/or fragmentation, where the nodules were grown by gas-solid reactions during condensation. On the parent body, refractory inclusions from the CVR meteorite Leoville experienced intense shocks that led to the flattening of their shapes and lowering of their porosities. High-temperature metasomatism in CVOxA meteorites and low-temperature metasomatism in CVOxB meteorites do not seem to have large effects on the porosities of their refractory inclusions, which have similar ranges and pore-size distributions. Instead, we infer that their pores are mostly inherited from the gas-solid condensation and subsequent agglomeration processes. The porosities of CAIs are higher than those of AOAs, which is mainly due to the high-temperature sintering process of AOAs. |
| 资助项目 | Science and Technology Facilities Council (STFC), UK[ST/R000727/1] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-DQC001] ; Strategic Priority Research Program on Space Science, CAS[XDA15020300] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000629810400001 |
| 出版者 | WILEY |
| 资助机构 | Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101031]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Russell, Sara S. |
| 作者单位 | 1.Nat Hist Museum, Dept Earth Sci, Cromwell Rd, London SW7 5BD, England 2.Open Univ, Sch Phys Sci, Walton Hall, Milton Keynes MK7 6AA, Bucks, England 3.Nat Hist Museum, Core Res Labs, Cromwell Rd, London SW7 5BD, England 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Mingming,Clark, Brett,King, Ashley J.,et al. Shape and porosity of refractory inclusions in CV3 chondrites: A micro-computed tomography (mu CT) study[J]. METEORITICS & PLANETARY SCIENCE,2021:15. |
| APA | Zhang, Mingming,Clark, Brett,King, Ashley J.,Russell, Sara S.,&Lin, Yangting.(2021).Shape and porosity of refractory inclusions in CV3 chondrites: A micro-computed tomography (mu CT) study.METEORITICS & PLANETARY SCIENCE,15. |
| MLA | Zhang, Mingming,et al."Shape and porosity of refractory inclusions in CV3 chondrites: A micro-computed tomography (mu CT) study".METEORITICS & PLANETARY SCIENCE (2021):15. |
入库方式： OAI收割
来源：地质与地球物理研究所
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