Highly siderophile element and osmium isotope systematics of basaltic volcanics: A different approach to petrological processes

IF 0.5 Q4 GEOSCIENCES, MULTIDISCIPLINARY Bulletin of the Mineral Research and Exploration Pub Date : 2021-03-22 DOI:10.19111/BULLETINOFMRE.901001

M. Arslan, Irfan Temizel, Emel Abdioğlu Yazar, Bahrican Ar, C. Yücel

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Abstract

The highly siderophile element (HSE) or platinum group element (PGE) and Os isotope systematics of basaltic volcanics have recently received a significant attention because of their potential to constrain the petrological processes on magma generation and evolution. The HSE and Os isotope data, which are generally observed at very low concentrations in basalts and obtained by modern enrichment and analytical techniques, are frequently used in petrological studies. The HSE contents and ratios from whole-rock analysis of basalts, and combined evaluation with the theoretical knowledge and modelling of HSE behaviour during the partial melting of mantle and the differentiation of basaltic magma would provide opportunity for geochemical modelling on mantle melting. Besides, HSE contents and Pd-PGE/Ir-PGE ratios are important indicators for the nature of mantle sulfides, the sulfur saturation conditions of the mantle source, sulfide segregation, fractional crystallization, crustal assimilation and partial melting degrees in the origin and evolution of mantle-derived magmas. Therefore, in addition to the traditional whole-rock geochemical data obtained from Cenozoic aged basalts observed widely in Turkey, HSE and Os isotope systematics of these basalts can contribute to define the geochemical features of the mantle source, and to model petrological processes which are effective in the magma evolution. Highly siderophile element and osmium isotope systematics of basaltic volcanics: A different approach to petrological processes

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玄武岩火山的高亲铁元素和锇同位素系统:岩石学过程的一种不同方法

玄武岩火山岩的高亲铁元素（HSE）或铂族元素（PGE）和Os同位素系统学最近受到了极大的关注，因为它们可能限制岩浆生成和演化的岩石学过程。HSE和Os同位素数据通常在玄武岩中以非常低的浓度观察到，并通过现代富集和分析技术获得，经常用于岩石学研究。玄武岩全岩分析的HSE含量和比率，以及与地幔部分熔融和玄武岩岩浆分化过程中HSE行为的理论知识和建模相结合的评估，将为地幔熔融的地球化学建模提供机会。此外，HSE含量和Pd-PGE/Ir-PGE比值是地幔硫化物性质、地幔源硫饱和条件、地幔源岩浆起源和演化过程中硫化物偏析、分级结晶、地壳同化和部分熔融程度的重要指标。因此，除了从土耳其广泛观察到的新生代玄武岩中获得的传统全岩地球化学数据外，这些玄武岩的HSE和Os同位素系统学有助于确定地幔源的地球化学特征，并对岩浆演化中有效的岩石学过程进行建模。玄武岩火山岩的高亲铁元素和锇同位素系统学：岩石学过程的不同方法

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来源期刊

Bulletin of the Mineral Research and Exploration GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

1.20

自引率

20.00%

发文量

审稿时长

10 weeks

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