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

• Published in: Contributions to Mineralogy and Petrology
• Main Authors: Heinonen, Jussi S., Luttinen, Arto V., Spera, Frank J., Vuori, Saku K., Bohrson, Wendy A.
• Other Authors: Luonnontieteiden ja Tekniikan Tutkimuksen Toimikunta, University of Helsinki including Helsinki University Central Hospital
• Format: Article in Journal/Newspaper
• Language: English
• Published: Springer Science and Business Media LLC 2021
• Subjects: Geochemistry and Petrology; Geophysics; Antarctic; Dronning Maud Land; Muren; The Antarctic; Vestfjella; Antarc*
• Online Access: http://dx.doi.org/10.1007/s00410-021-01777-6; https://link.springer.com/content/pdf/10.1007/s00410-021-01777-6.pdf; https://link.springer.com/article/10.1007/s00410-021-01777-6/fulltext.html

Abstract 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 profi...