Ilmentite - Geikielite 固溶体的拉曼光谱分析

IF 2.7 3区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

American Mineralogist Pub Date : 2024-03-28 DOI:10.2138/am-2023-9262

L. Breitenfeld, M. Dyar, Leif Tokle, Kevin Robertson

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引用次数: 0

摘要

钛铁矿（Fe2+TiO3）和镁钛铁矿（MgTiO3）是与地球、月球、火星和陨石样本地质有关的重要陆地矿物。拉曼光谱是一种功能强大的技术，可用于确定钛铁矿-黝帘石固溶体的矿物阳离子。我们报告了钛铁矿-黝帘石固溶体中的九个样品套件，并提供了定量解释的背景。我们比较了预测钛铁矿成分的单变量拉曼峰位模型和多变量机器学习模型。目前推荐使用单变量模型，但如果数据集的规模扩大，多变量模型可能会更优越。这项研究为利用拉曼光谱这种廉价、便携、高效的技术量化氧化物矿物中的铁（钛铁矿）和镁（geikielite）奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Raman Spectroscopy of the Ilmentite — Geikielite Solid Solution

Ilmenite (Fe2+TiO3) and geikielite (MgTiO3) are important terrestrial minerals relevant to the geology of the Earth, the Moon, Mars, and meteorite samples. Raman spectroscopy is a powerful technique that allows for mineral cation determination for the ilmenite — geikielite solid solution. We report on a sample suite of nine samples within the ilmenite — geikielite solid solution and provide context for their quantitative interpretation. We compare a univariate Raman peak position model for predicting ilmenite composition with a multivariate machine learning model. The univariate model is currently recommended, though the multivariate model may become superior if the data set size is increased. This study lays the groundwork for quantifying Fe (ilmenite) and Mg (geikielite) within oxides minerals using a cheap, portable, and efficient technology like Raman spectroscopy.

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来源期刊

American Mineralogist 地学-地球化学与地球物理

CiteScore

5.20

自引率

9.70%

发文量

276

审稿时长

1 months

期刊介绍： American Mineralogist: Journal of Earth and Planetary Materials (Am Min), is the flagship journal of the Mineralogical Society of America (MSA), continuously published since 1916. Am Min is home to some of the most important advances in the Earth Sciences. Our mission is a continuance of this heritage: to provide readers with reports on original scientific research, both fundamental and applied, with far reaching implications and far ranging appeal. Topics of interest cover all aspects of planetary evolution, and biological and atmospheric processes mediated by solid-state phenomena. These include, but are not limited to, mineralogy and crystallography, high- and low-temperature geochemistry, petrology, geofluids, bio-geochemistry, bio-mineralogy, synthetic materials of relevance to the Earth and planetary sciences, and breakthroughs in analytical methods of any of the aforementioned.