Subduction zone mantle enrichment by fluids and Zr-Hf-depleted crustal melts as indicated by backarc basalts of the Southern Volcanic Zone, Argentina
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- 作者：Paul M. Holma ; paulmh@ign.ku.dk" class="auth_mail" title="E-mail the corresponding author ; Nina Sø ; agera ; b ; Mads Alfastsena ; Gustavo W. Bertottoc
- 关键词：Andean volcanism ; Southern Volcanic Zone ; Mantle enrichment ; Geochemical modelling
- 刊名：Lithos
- 出版年：2016
- 出版时间：1 October 2016
- 年：2016
- 卷：262
- 期：Complete
- 页码：135-152
- 全文大小：3356 K
文摘
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Backarc mantle metasomatized by contrasting types of subducted upper continental crust
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One type of mantle-enriching crustal melts had low Zr/Sm and Hf/Sm due to residual zircon.
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Depleted and undepleted pre-metasomatic mantle mixed during Pleistocene slab steepening
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Three types of mantle sourced Transitional Southern Volcanic Zone arc magmas