Evolution of Proterozoic multistage rift basins – key to mineral systems

This project is funded under the Australian Research Council (ARC) Linkage Program.

The Challenge

The long-lived sedimentary basins of the North Australian Craton are increasingly recognised as important hosts for major metal deposits – particularly copper and gold – but understanding of the processes governing metal mobilisation and mineralisation during basin fill and subsequent tectono-thermal events affecting this region is incomplete

Key Findings

The North Australian Craton formed through multiple stages, with long‑lived crustal structures controlling basin geometry, faulting, and mineralisation.

Analogue and numerical models show regional Proterozoic basins evolved under elevated geothermal gradients, progressing from wide to narrow rifts, and with inherited structures strongly governing extension and inversion.

Integrated geophysical imaging reveals deep lithospheric corridors linked to major mineral belts across the region, providing a predictive framework for targeting concealed mineral systems.

Benefit to WA

The enhanced understanding this study provides of the mineralisation history of Northern Australia’s Proterozoic sedimentary basins will support greater confidence in mineral exploration planning across this emerging mineral province, supporting investment and increasing the probability of future mineral discoveries.

Report DOI

DOI: 10.71342/573576910654