Spectroscopy of Epidote Minerals
Spectroscopy of Epidote Minerals
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DOI：
10.2138/gsrmg.56.1.125
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发表时间：
2004-01
影响因子：
--
通讯作者：
A. Liebscher
中科院分区：
文献类型：
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作者：
A. Liebscher
许多光谱技术已应用于附属矿物，以表征其结构和晶体化学。通过光学滥用光谱。矿物质（例如Burns and Strens 1967; Tsang and Ghose 1971），（ii）这些位点的物理和结构特征是组成，温度和/或压力的函数（例如Taran和Langer 2000; Langer等人2002年），（iii）它们的晶体场稳定能（例如Burns and Strens 1967; Langer等，2002），以及（iv）某些表皮矿物中颜色和层状作用的原因（例如，Faye和Nickel 1971）。 ; Liebscher等人2002年的相位转变（例如，Liebscher和Gottschalk 2004）使用光谱法（i）来解决不同的附属矿物及其位置位置（例如，Dollase 1973; Kartashov等，2002）和（ii）研究不同的晶体内晶体内Al-fe在不同的不同的晶体内分区八面体位和这种排序过程的动力学（例如，Patrier等，1991； Fehr和Heuss-Asbichler 1997）。应用于晶体化学结果的矿物质，对不同的光谱技术及其理论框架的讨论超出了本章的范围。
Numerous spectroscopic techniques have been applied to the epidote minerals to characterize their structure and crystal chemistry. The substitution of transition metal ions Mn, Cr, and V, besides Fe, in the different crystallographic sites of epidote minerals and with different valence states has been studied by optical absorption spectroscopy. These studies mainly focused on the determination of (i) the site preferences of the different transition metal ions within the epidote minerals (e.g., Burns and Strens 1967; Tsang and Ghose 1971), (ii) the physical and structural characteristics of these sites as a function of composition, temperature and/or pressure (e.g., Taran and Langer 2000; Langer et al. 2002), (iii) their crystal field stabilization energy (e.g., Burns and Strens 1967; Langer et al. 2002), and (iv) the cause of the color and pleochroism in some epidote minerals (e.g., Faye and Nickel 1971). Major topics of infrared spectroscopic studies have been the proton environment and its changes with composition, temperature, and pressure (e.g., Langer and Raith 1974; Winkler et al. 1989; Della Ventura et al. 1996; Liebscher et al. 2002) and the phase transition within the orthorhombic solid solution series (e.g., Liebscher and Gottschalk 2004). Mossbauer spectroscopy has been used (i) to resolve the valence state of Fe in the different epidote minerals and its site location (e.g., Dollase 1973; Kartashov et al. 2002) and (ii) to study the intracrystalline Al-Fe partitioning between the different octahedral sites and the kinetic of this ordering process (e.g., Patrier et al. 1991; Fehr and Heuss-Asbichler 1997). This chapter reviews the different spectroscopic studies and techniques applied to epidote minerals with emphasis given to the crystal chemical results. An in-depth presentation and discussion of the different spectroscopic techniques and their theoretical framework is beyond the scope of this chapter. …