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The age and provenance of basement metasediments from the Kubor and Bena Bena blocks, Central Highlands, Papua New Guinea: constraints on the tectonic evolution of the northern Australian cratonic margin

Van Wyck, Nicholas; Williams, Ian

Description

Detrital zircon from two basement blocks (Kubor and Bena Bena) in the central Highlands of Papua New Guinea has an age signature that strongly suggests a northern Australian provenance. Samples of the Omung Metamorphics, southeastern Kubor Block, together yield principal zircon populations with ages of ca 1.8 Ga (∼10% of the total), ca 1.55 Ga (∼10%), 470-440 Ma (∼15%), ca 340 Ma (∼10%) and 290-260 Ma (∼40%). Two tonalite stocks of the Kubor Intrusive Complex, which intrude the Omung...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
URI: http://hdl.handle.net/1885/92342
Source: Australian Journal of Earth Sciences
DOI: 10.1046/j.1440-0952.2002.00938.x

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