Devonian magmatism in the Timan Range, Arctic Russia — subduction, post-orogenic extension, or rifting?
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- 作者：V. Peasea ; vicky.pease@geo.su.se" class="auth_mail" title="E-mail the corresponding author ; J.H. Scarrowb ; jscarrow@ugr.es" class="auth_mail" title="E-mail the corresponding author ; I.G. Nobre Silvaa ; c ; inobre@mun.ca" class="auth_mail" title="E-mail the corresponding author ; A. Cambesesb ; aitorc@ugr.es" class="auth_mail" title="E-mail the corresponding author
- 关键词：East European Craton ; Devonian rifted margin ; Basalt ; Geochemistry ; Crustal contamination
- 刊名：Tectonophysics
- 出版年：2016
- 出版时间：22 November 2016
- 年：2016
- 卷：691
- 期：part_PA
- 页码：185-197
- 全文大小：2663 K
文摘
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Devonian low-K tholeiitic basalts occur in the northern East European Craton (EEC).
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Th, LREE, and (LREE/HREE)N and isotopic ratios suggest two distinct magma batches.
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Basalt genesis involved transitional mantle and contamination with old lower crust.
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This occurred during rifting of a mainly non-volcanic continental rifted margin.