Synchronous alkaline and subalkaline magmatism during the late Neoproterozoic-early Paleozoic Ross orogeny, Antarctica: Insights into magmatic sources and processes within a continental arc
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- 作者：Graham Hagen-Peter ; 1 ; ghagenpe@gmail.com" class="auth_mail" title="E-mail the corresponding author ; John M. Cottle
- 关键词：Subduction-related magmatism ; Alkaline magmatism ; Zircon U&ndash ; Pb geochronology ; Gondwana ; Ross orogen ; Antarctica
- 刊名：Lithos
- 出版年：2016
- 出版时间：1 October 2016
- 年：2016
- 卷：262
- 期：Complete
- 页码：677-698
- 全文大小：9167 K
文摘
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Alkaline and subalkaline magmatism were contemporaneous in a continental arc.
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Large subalkaline igneous complexes were emplaced at different times.
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Alkaline magmas were sourced from metasomatized lithospheric mantle.
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Magmatic compositions record phases of shortening and extension in the upper plate.