Basaltic rocks from the Andean Southern Volcanic Zone: Insights from the comparison of along-strike and small-scale geochemical variations and their sources
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- 作者：Rosemary Hickey-Vargasa ; hickey@fiu.edu" class="auth_mail" title="E-mail the corresponding author ; Sven Holbika ; Daniel Tormeyb ; Frederick A. Freyc ; Hugo Moreno Road ; e
- 关键词：Continental arc magmatism ; Andean Southern Volcanic Zone ; Subduction zone processes ; Isotope geochemistry ; Trace element geochemistry ; Liquiñ ; e&ndash ; Ofqui Fault System
- 刊名：Lithos
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：258-259
- 期：Complete
- 页码：115-132
- 全文大小：3955 K
文摘
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Volcanic rocks from different segments of the Andean SVZ are geochemically distinct.
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Large-scale differences between TSVZ and CSVZ magmas are duplicated on a small-scale.
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In CSVZ and SSVZ, the Liquine–Ofqui Fault System permits ascent of diverse magmas.
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Asthenospheric magma with subduction input assimilates mantle lithosphere and crust.