Serial interaction of primitive magmas with felsic and mafic crust recorded by gabbroic dikes from the Antarctic extension of the Karoo large igneous province

• Main Authors: Heinonen, Jussi S., Luttinen, Arto V., Spera, Frank J., Vuori, Saku K., Bohrson, Wendy A.
• Format: Text
• Language: unknown
• Published: ScholarWorks@CWU 2021
• Subjects: Large igneous provinces; Magmatism; Differentiation; Assimilation; Modeling; Geomorphology; Tectonics and Structure; Volcanology; Antarctic; Dronning Maud Land; Muren; The Antarctic; Vestfjella; Antarc*
• Online Access: https://digitalcommons.cwu.edu/geological_sciences/142; https://digitalcommons.cwu.edu/cgi/viewcontent.cgi?article=1142&context=geological_sciences

Two subvertical gabbroic dikes with widths of ~ 350 m (East-Muren) and ≥ 500 m (West-Muren) crosscut continental flood basalts in the Antarctic extension of the ~ 180 Ma Karoo large igneous province (LIP) in Vestfjella, western Dronning Maud Land. The dikes exhibit unusual geochemical profiles; most...