NEW RELEASE: Tyennan detrital zircon geochronoloy study
The Northern Tyennan region was geologically mapped during the 2021–2025 field seasons as part of a Geological Survey of Tasmania campaign covering the Borradaile, Liena and Lake MacKenzie 1:25 000 map sheets.
This study presents the provenance and age constraints of new detrital zircon samples from quartzose rocks near Dublin Plain and Mersey Forest and establishes baseline data in order to determine the initial provenance signatures of the Northern Tyennan.
This study aims to:
1. Constrain the maximum stratigraphic ages of quartzite-bearing facies in the Mersey Forest-Lake Dublin Road areas; and
2. Compare the new results of previous detrital zircon studies for the Tyennan Domain with less deformed Proterozoic rocks in Tasmania.