Abstract

The behavior of iron in the translucent dark-gray obsidian from the Artheni deposit was studied by optical absorption and EPR spectroscopy. The presence of iron in the Fe²⁺ and Fe³⁺ states was shown. Transitions in optical spectra and paramagnetic centers in EPR spectra were identified. By the methods of prompt gamma activation analysis (PGAA) and neutron activation analysis (NAA), the content of basic oxides, the amounts of iron, and other elements in the obsidian under study were determined.

中文翻译：

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Artheni矿床（亚美尼亚）的半透明黑曜石中铁的光谱性质

摘要

通过光学吸收和EPR光谱研究了来自Artheni矿床的半透明暗灰色黑曜石中铁的行为。示出了铁以Fe ²⁺和Fe ^3+的状态存在。确定了EPR光谱的光谱和顺磁中心的跃迁。通过快速伽马活化分析（PGAA）和中子活化分析（NAA）的方法，确定了研究中的黑曜石中碱性氧化物的含量，铁的含量和其他元素。