拉曼光谱测定透闪石-铁阳起石中Mg2+、Fe2+比值

Calculated the ratio of Mg2+ and Fe2+ in tremolite-ferroactinolite by Raman peak area

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DOI 10.20086/j.cnki.yskw.2025.4085
刊名
Acta Petrologica et Mineralogica
年,卷(期) 2025, 44(3)
作者
作者单位

1. 合肥工业大学资源与环境工程学院, 安徽 合肥 230001;
2. 安徽省地质实验研究所, 自然资源部合肥矿产资源监督检测中心, 安徽 合肥 230001

摘要
角闪石是分布广泛的造岩矿物之一,Mg2+、Fe2+相对含量是透闪石-铁阳起石系列定名的依据,对矿物学、岩石学、宝玉石学研究具有重要意义。本文收集了8个产地不同成因的透闪石-铁阳起石系列样品,开展了系统的拉曼光谱和电子探针定量分析研究,发现样品在3 600~3 700 cm-1区间的拉曼谱峰发生规律变化,峰面积与电子探针分析获得的镁、铁含量具有良好线性相关性,归纳出了利用拉曼谱峰面积计算透闪石-铁阳起石系列矿物中Mg2+、Fe2+比值的方法,可应用于透闪石-铁阳起石系列矿物的快速、无损分析。
Abstract
Hornblende is one of the widely distributed rock-forming minerals, and the contents of Mg2+ and Fe2+ are the basis for naming tremolite-ferroactinolite series, which is of great significance to the research of mineralogy, petrology and gemmology. In this paper, tremolite-ferroactinolite series samples from eight places of different origin were collected, and systematic Raman spectroscopy and electron probe quantitative analysis were carried out. It was found that the Raman spectrum peaks of hornblende series minerals varied regularly in the range of 3 600~3 700 cm-1, and the peak area had a good linear correlation with the contents of magnesium and iron obtained by electron probe. The method of calculating Mg2+ and Fe2+ contents in tremolite-ferroactinolite by Raman peak area is concluded, which can be applied to rapid and non-destructive analysis for tremolite-ferroactinolite series minerals.
关键词
透闪石-铁阳起石;Mg2+、Fe2+比值;拉曼谱峰面积;电子探针
KeyWord
tremolite-ferroactinolite; the ratio of Mg2+ and Fe2+; Raman peak area; electronic probe
基金项目
页码 727-736
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于露,陈天虎*,戴慧,曹素巧,王枫,郭连巧,左锐. 拉曼光谱测定透闪石-铁阳起石中Mg2+、Fe2+比值 [J]. 岩石矿物学杂志. 2025; 44; (3). 727 - 736.

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