| Title | Age and geochemistry of the boucaut volcanics in the neoproterozoic Adelaide rift complex, South Australia |
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| Author | Armistead, S E ;
Collins, A S; Buckman, S; Atkins, R |
| Source | Australian Journal of Earth Sciences 2020 p. 1-10, https://doi.org/10.1080/08120099.2021.1840435  Open Access |
| Image |  |
| Year | 2020 |
| Alt Series | Natural Resources Canada, Contribution Series 20200589 |
| Publisher | Taylor & Francis Ltd. |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Area | Adelaide; Australia |
| Lat/Long WENS | 137.0000 141.0000 -30.5000 -35.5000 |
| Subjects | geochemistry; geochronology; Science and Technology; volcanic processes; Adelaide Rift Complex; Rodinia; Adelaide Superbasin; Proterozoic |
| Illustrations | location maps; diagrams; tables; graphs |
| Released | 2020 11 18 |
| Abstract | The Adelaide Rift Complex in South Australia records the break-up of Rodinia at a time of great climatic and biological evolution. The Boucaut Volcanics within the Neoproterozoic Adelaide Rift Complex
of the Adelaide Superbasin lie at the base of the Burra Group, marking the boundary between the Burra Group and underlying Callanna Group. Despite their significance as one of the few volcanic units within the rift complex, there has been no robust
age determination published for the Boucaut Volcanics. We use U–Pb zircon LA-ICP-MS data to determine an age of 788?±?6?Ma for the eruption of the bimodal Boucaut Volcanics. This has important implications for constraining the timing of stratigraphy
within the Adelaide Superbasin. This also has far-reaching implications for plate tectonic reconstructions of Australia and Laurentia, and for correlating global isotope anomalies for the Neoproterozoic. |
| GEOSCAN ID | 327845 |
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