气候变化领域集成服务门户(CCPortal): Mid-infrared spectroscopy of crystalline plagioclase feldspar samples with various Al,Si order and implications for remote sensing of Mercury and other terrestrial Solar System objects

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DOI	10.1016/j.epsl.2020.116697
	Mid-infrared spectroscopy of crystalline plagioclase feldspar samples with various Al,Si order and implications for remote sensing of Mercury and other terrestrial Solar System objects
	Reitze M.P.; Weber I.; Morlok A.; Hiesinger H.; Bauch K.E.; Stojic A.N.; Helbert J.
发表日期	2021
ISSN	0012821X
卷号	554
英文摘要	We analyzed plagioclase feldspar samples that were well-characterized in terms of chemical composition as well as degree of Al,Si order in mid-infrared reflection spectra between 7 μm and 14 μm (1429 cm−1 and 714 cm−1). The chemical compositions were derived with an electron microprobe analyzer. To determine the degree of Al,Si order, powder X-ray diffraction methods were applied. For the interpretation of the infrared spectra, we used the wavelength of the Christiansen feature (CF) and the autocorrelation function for a specific wavelength region. The CF shifts from around 7.72 μm (1296 cm−1) in Na-richest samples to 8.10 μm (1234 cm−1) in the Ca-richest sample. Combining the CF position and the autocorrelation-derived value allowed to determine the degree of Al,Si order of the samples based on reflection spectra. The wavelength of the Transparency feature (TF) in the finest analyzed grain size fraction also depends on the chemical composition and the degree of Al,Si order. Our results are helpful for the interpretation of data returned by the MERTIS experiment onboard BepiColombo. The data help to distinguish between space weathering, shock effects, and ordering effects in plagioclase samples. © 2020 Elsevier B.V.
关键词	Al,Si distribution infrared spectroscopy Mercury MERTIS plagioclase feldspar space weathering
英文关键词	Autocorrelation; Calcium compounds; Chemical analysis; Feldspar; Infrared devices; Infrared spectroscopy; Remote sensing; Silicon; Autocorrelation functions; Chemical compositions; Electron microprobe analyzers; Interpretation of data; Mid-infrared spectroscopy; Plagioclase feldspars; Powder X ray diffraction; Reflection spectra; Aluminum metallography; aluminum; chemical composition; infrared spectroscopy; Mercury (planet); plagioclase; remote sensing; silicon; solar system; spatial distribution
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203264
作者单位	Institut für Planetologie, Westfälische Wilhelms-Universität (WWU) Münster, Münster, 48149, Germany; Deutsches Zentrum für Luft- und Raumfahrt (DLR), Rutherfordstr. 2, Berlin, 12489, Germany
推荐引用方式 GB/T 7714	Reitze M.P.,Weber I.,Morlok A.,et al. Mid-infrared spectroscopy of crystalline plagioclase feldspar samples with various Al,Si order and implications for remote sensing of Mercury and other terrestrial Solar System objects[J],2021,554.
APA	Reitze M.P..,Weber I..,Morlok A..,Hiesinger H..,Bauch K.E..,...&Helbert J..(2021).Mid-infrared spectroscopy of crystalline plagioclase feldspar samples with various Al,Si order and implications for remote sensing of Mercury and other terrestrial Solar System objects.Earth and Planetary Science Letters,554.
MLA	Reitze M.P.,et al."Mid-infrared spectroscopy of crystalline plagioclase feldspar samples with various Al,Si order and implications for remote sensing of Mercury and other terrestrial Solar System objects".Earth and Planetary Science Letters 554(2021).