Ultrahigh temperature deformation microstructures in felsic granulites of the Napier Complex, Antarctica

• Published in: Tectonophysics
• Main Authors: Lund, Majbritt D., Piazolo, Sandra, Harley, Simon L.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2006
• Subjects: Al diffusion; Deformation mechanism; Felsic granulites; Microstructure; Orthopyroxene slip systems; Ultrahigh temperature; Napier; Tonagh Island; Antarc*; Antarctica
• Online Access: https://researchers.mq.edu.au/en/publications/9e3f3877-0842-4ae7-aebd-e969d454201b; https://doi.org/10.1016/j.tecto.2006.05.022; http://www.scopus.com/inward/record.url?scp=33751057499&partnerID=8YFLogxK

Detailed electron microscope and microstructural analysis of two ultrahigh temperature felsic granulites from Tonagh Island, Napier Complex, Antarctica show deformation microstructures produced at ∼ 1000 °C at 8-10 kbar. High temperature orthopyroxene (Al ∼7 wt.% and ∼ 11 wt.%), exhibits crystallogr...