Archaean crust in the Rayner Complex of east Antarctica: Oygarden Group of islands, Kemp Land
Archaean zircon grains from the Oygarden Group of islands in Kemp Land, east Antarctica, record evidence for multiple episodes of recrystallisation, dissolution and growth from the Early to Middle Archaean to the Neoproterozoic. Zircon grains in layered felsic orthogneiss have an age of ∼ 3650 Ma, a minimum protolith age for this rock. These zircon grains were subsequently affected by a ∼ 3470 Ma Pb-loss event. Homogeneous felsic orthogneiss that cuts S1, but contains an intense S2, foliation,...[Show more]
|Collections||ANU Research Publications|
|Source:||Transactions of the Royal Society of Edinburgh: Earth Sciences|
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