The impact of the Pan-African-aged tectonothermal event on high-grade rocks at Mount Brown, East Antarctica

• Published in: Antarctic Science
• Main Authors: Liu, Xiaochun, Fu, Bin, Li, Qiuli, Zhao, Yue, Liu, Jian, Chen, Hong
• Format: Article in Journal/Newspaper
• Language: English
• Published: British Antarctic Survey
• Subjects: hornblende/biotite 40Ar/39Ar dating; isotopic resetting; monazite/rutile U–Pb dating; East Antarctica; Rayner; Mount Brown; Antarc*; Antarctic Science; Antarctica
• Online Access: http://hdl.handle.net/1885/259038; https://doi.org/10.1017/S0954102019000518; https://openresearch-repository.anu.edu.au/bitstream/1885/259038/3/01_Liu_The_impact_of_the_2020.pdf.jpg

This study presents monazite and rutile U–Pb and hornblende and biotite 40Ar/39Ar geochronological data for high-grade rocks of the eastern Grenville-aged Rayner orogen at Mount Brown in order to analyse the extent and degree of Pan-African-aged reworking. Monazite from paragneiss yields U–Pb ages o...