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Isotopic ages of selected magmatic rocks from King George Island (West Antarctica) controlled by magnetostratigraphy

Nawrocki, J.; Panczyk, Magdalena; Williams, Ian


Isotopic and palaeomagnetic studies were carried out in the central part of King George Island. Selected mafic to intermediate igneous rocks were sampled for this purpose. Single-grain U-Pb dating of zircons from basalts to dacites was controlled by a whole rock 40Ar- 39Ar data and the magneto stratigraphy. Five magmatic activity phases were distinguished in the SE coast of King George Island. The oldest, late Cretaceous (Campanian) phase represented by basalts of the Uchatka Point Formation...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article


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