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Proterozoic crustal evolution of central East Antarctica: Age and isotopic evidence from glacial igneous clasts, and links with Australia and Laurentia

Goodge, John W.; Fanning, C. Mark; Fisher, Christopher M.; Vervoort, Jeffrey D.


Rock clasts entrained in glacial deposits sourced from the continental interior of Antarctica provide an innovative means to determine the age and composition of ice-covered crust. Zircon U-Pb ages from a suite of granitoid clasts collected in glacial catchments draining central East Antarctica through the Transantarctic Mountains show that crust in this region was formed by a series of magmatic events at ∼2.01, 1.88–1.85, ∼1.79, ∼1.57, 1.50–1.41, and 1.20–1.06 Ga. The dominant granitoid...[Show more]

CollectionsANU Research Publications
Date published: 2017-09
Type: Journal article
Source: Precambrian Research
DOI: 10.1016/j.precamres.2017.07.026


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