Characterizing amorphous silicates in extraterrestrial materials: Polymerization effects on Raman and mid-IR spectral features of alkali and alkali earth silicate glasses
文献类型：期刊论文
| 作者 | Fu, Xiaohui1,2 ; Wang, Alian3,4; Krawczynski, Michael J.3,4
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| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
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| 出版日期 | 2017-05-01 |
| 卷号 | 122期号:5页码:839-855 |
| 关键词 | silicate glass degree of polymerization Raman spectroscopy planets meteorites |
| 英文摘要 | Amorphous silicates are common in extraterrestrial materials, especially in carbonaceous chondrites of petrologic types 1 and 2. In addition, high percentage of amorphous components and poorly crystalline phyllosilicates were found in the mudstones at Gale Crater by the CheMin instruments on board of Mar Curiosity rover, which illustrates the importance of characterizing amorphous silicates in future planetary surface explorations. The structure of an amorphous silicate can vary in two aspects: the degree of polymerization and the degree of crystallinity. Here we present the first phase study on characterizing synthetic alkali and alkali earth silicate glasses with different degrees of polymerization by using vibration spectroscopy. Compared with crystalline silicates, their Raman and mid-IR spectra show broad spectral peaks but have the similar peak positions. We find that a change in the degree of polymerization of these silicate glasses affects their Raman band positions, especially the ratio of Raman band intensities, as well as the positions of the Christiansen feature and reststrahlen bands in their mid-IR absorbance spectra. Based on these observations, we establish a calibration curve that could enable semiquantification of the polymerization degree of silicate glasses in planetary surface/subsurface materials during future robotic planetary surface exploration missions. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geochemistry & Geophysics |
| 研究领域[WOS] | Geochemistry & Geophysics |
| 关键词[WOS] | HIGH-TEMPERATURE ; ALUMINOSILICATE GLASSES ; MARTIAN METEORITE ; TAGISH LAKE ; IN-SITU ; CARBONACEOUS CHONDRITE ; VIBRATIONAL-SPECTRA ; GERMANATE GLASSES ; STRUCTURAL UNITS ; VOLCANIC GLASSES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000403491300003 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8832]  |
| 专题 | 国家天文台_月球与深空探测研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Lunar & Deep Space Explorat, Natl Astron Observ, Beijing, Peoples R China 2.Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai, Peoples R China 3.Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA 4.Washington Univ, McDonnell Ctr Space Sci, St Louis, MO 63130 USA |
| 推荐引用方式 GB/T 7714 | Fu, Xiaohui,Wang, Alian,Krawczynski, Michael J.. Characterizing amorphous silicates in extraterrestrial materials: Polymerization effects on Raman and mid-IR spectral features of alkali and alkali earth silicate glasses[J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,2017,122(5):839-855. |
| APA | Fu, Xiaohui,Wang, Alian,&Krawczynski, Michael J..(2017).Characterizing amorphous silicates in extraterrestrial materials: Polymerization effects on Raman and mid-IR spectral features of alkali and alkali earth silicate glasses.JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,122(5),839-855. |
| MLA | Fu, Xiaohui,et al."Characterizing amorphous silicates in extraterrestrial materials: Polymerization effects on Raman and mid-IR spectral features of alkali and alkali earth silicate glasses".JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS 122.5(2017):839-855. |
入库方式： OAI收割
来源：国家天文台
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