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Characterization of primary silicate minerals in Earth-like bodies via Raman spectroscopy
Journal of Raman Spectroscopy ( IF 2.5 ) Pub Date : 2024-01-30 , DOI: 10.1002/jrs.6657
Shuaidong Huang 1, 2 , Bin Xue 1, 2 , Yiyi Zhao 1, 2 , Jianfeng Yang 1, 2
Affiliation  

The examination and identification of silicate minerals are critical for advancing our understanding of the evolutionary journey of Earth-like bodies. To facilitate an efficient and productive process, it is imperative that these minerals be detected swiftly and accurately. This study is designed to explore the relationship between varying concentrations of cations and their corresponding Raman shifts. The focus is on primary silicate minerals in Earth-like bodies, specifically olivine, pyroxene, and feldspar, utilizing data from the RRUFF database. Employing a fitting formula, we identify distinct Raman peak ranges associated with different silicate minerals. Our research covers a wide array of mineral types, including five varieties of olivine (forsterite [Mg2SiO4], fayalite [Fe2+2SiO4], tephroite [Mn2+2SiO4], monticellite [CaMgSiO4], and kirschsteinite [CaFe2+SiO4]), four types of pyroxene (ferrosilite [Fe2+2Si2O6], enstatite [Mg2Si2O6], hedenbergite [CaFe2+Si2O6], and diopside [CaMgSi2O6]), and three varieties of feldspar (alkali feldspar [KAlSi3O8], albite [NaAlSi3O8], and anorthite [CaAl2Si2O8]). The accuracy of matching Raman characteristics is exceptionally high for all olivine and pyroxene types (100%) and an impressive 86% for feldspar. The findings from this study highlight the crucial role of Raman spectroscopy in the field of silicate mineralogy and suggest significant implications for enhancing future exploration missions to Earth-like bodies.

中文翻译:

通过拉曼光谱表征类地体中的原生硅酸盐矿物

硅酸盐矿物的检查和鉴定对于增进我们对类地天体进化历程的理解至关重要。为了促进高效且富有成效的过程,必须快速准确地检测这些矿物质。本研究旨在探讨不同浓度的阳离子与其相应的拉曼位移之间的关系。重点是利用 RRUFF 数据库中的数据,研究类地天体中的原生硅酸盐矿物,特别是橄榄石、辉石和长石。采用拟合公式,我们确定了与不同硅酸盐矿物相关的不同拉曼峰范围。我们的研究涵盖了广泛的矿物类型,包括五种橄榄石(镁橄榄石 [Mg 2 SiO 4 ]、铁橄榄石 [Fe 2+ 2 SiO 4 ]、软镁石 [Mn 2+ 2 SiO 4 ]、蒙铁石 [CaMgSiO 4 ]、辉石[CaFe 2+ SiO 4 ])、4种辉石(铁硅石[Fe 2+ 2 Si 2 O 6 ]、顽火辉石[Mg 2 Si 2 O 6 ]、铁辉石[CaFe 2+ Si 2 O 6 ]、透辉石 [CaMgSi 2 O 6 ])和三种长石(碱长石 [KAlSi 3 O 8 ]、钠长石 [NaAlSi 3 O 8 ] 和钙长石 [CaAl 2 Si 2 O 8 ])。所有橄榄石和辉石类型的拉曼特征匹配精度都非常高 (100%),长石的匹配精度高达 86%。这项研究的结果强调了拉曼光谱在硅酸盐矿物学领域的关键作用,并对加强未来类地天体的勘探任务具有重要意义。
更新日期:2024-02-02
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