Isotopic and geochemical constraints on the age and origin of granitoids from the central Mawson Escarpment, southern Prince Charles Mountains, East Antarctica

• Published in: Contributions to Mineralogy and Petrology
• Main Authors: Boger, Steven D., Maas, Roland, Fanning, Christopher
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Springer
• Subjects: Keywords: Archean; continental crust; emplacement; Gondwana; granitoid; igneous geochemistry; igneous intrusion; isotopic composition; Ordovician; orogeny; Proterozoic; SHRIMP dating; uranium-lead dating; zircon; Antarctica; East Antarctica; Prince Charles Mountain Antarctica; Granites; HighSr/Y; Lambert Complex; PrinceCharles Mountains; SHRIMP; Prince Charles Mountains; Mawson Escarpment; Antarc*
• Online Access: http://hdl.handle.net/1885/36979; https://doi.org/10.1007/s00410-007-0249-x; https://openresearch-repository.anu.edu.au/bitstream/1885/36979/7/01_Boger_Isotopic_and_geochemical_2008.pdf.jpg

Granitoids from the central Mawson Escarpment (southern Prince Charles Mountains, East Antarctica) range in age from Archaean to Early Ordovician. U-Pb dating of zircon from these rocks indicates that they were emplaced in three distinct pulses: at 3,519