Cumulate xenoliths from Mt. Overlord, northern Victoria Land, Antarctica. A window into high pressure storage and differentiation of mantle-derived basalts

• Published in: Lithos
• Main Authors: PERINELLI, cristina, GAETA, Mario, Armienti, Pietro
• Other Authors: Perinelli, Cristina, Gaeta, Mario
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2017
• Subjects: cumulate xenolith; hydrous mantle basalt; high pressure storage and differentiation; wet and hot deep zone; northern Victoria Land Antarctica; Overlord; Victoria Land; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/11573/908722; https://doi.org/10.1016/j.lithos.2016.10.027

The alkaline basaltic magmas at Mt. Overlord (northern Victoria Land, Antarctica) entrained abundant ultramafic xenoliths (wehrlites, clinopyroxenites and hornblendites). Textures, bulk rock compositions, mineral chemistry and thermobarometric calculations indicate that the xenoliths represent cumul...