俄罗斯涅涅茨自治区Kara Astrobleme晚泥盆世变质辉绿岩的岩石地球化学特征

IF 1 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Petrology Pub Date : 2023-07-19 DOI:10.1134/S0869591123040070

R. I. Shaibekov, N. S. Ulyasheva, E. M. Tropnikov, G. V. Ignatiev

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引用次数: 0

摘要

本文介绍了卡拉星闪岩体中部变质辉长岩的详细岩石学和岩石地球化学研究结果。所获得的资料使岩石的岩石学多样性有可能缩小到两个品种:无石英的变质辉白云岩和含石英的变质辉白云岩，它们是由单一岩浆熔体的分异形成的。岩石地球化学特征表明岩浆源的非均质性。无石英和含石英变质辉长白云岩的造岩矿物以冲击变质中低阶段的平面元素存在为特征。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Petrogeochemical Characteristics of Late Devonian Metagabbro-Dolerites of the Kara Astrobleme, Nenets Autonomous District, Russia

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Petrogeochemical Characteristics of Late Devonian Metagabbro-Dolerites of the Kara Astrobleme, Nenets Autonomous District, Russia

The paper presents the results of detailed petrographic and petrogeochemical studies of metagabbro-dolerites from the central part of the Kara astrobleme. The data obtained made it possible to narrow the petrographic diversity of the rocks to two varieties: quartz-free metagabbro-dolerites and quartz-bearing metagabbro-dolerites, which were formed through differentiation of a single magmatic melt. The geochemical features of the rocks indicate the heterogeneity of the magma-generating source. The rock-forming minerals of the quartz-free and quartz-bearing metagabbro-dolerites are characterized by the presence of planar elements of the low and middle stages of impact metamorphism.

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来源期刊

Petrology 地学-地球科学综合

CiteScore

2.40

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： Petrology is a journal of magmatic, metamorphic, and experimental petrology, mineralogy, and geochemistry. The journal offers comprehensive information on all multidisciplinary aspects of theoretical, experimental, and applied petrology. By giving special consideration to studies on the petrography of different regions of the former Soviet Union, Petrology provides readers with a unique opportunity to refine their understanding of the geology of the vast territory of the Eurasian continent. The journal welcomes manuscripts from all countries in the English or Russian language.