Australia: The Land Where Time Began

A biography of the Australian continent 

This orogenic event occurred about 1320-1150 Ma. Magnetic granitoids within basement, that is less magnetic, trends predominantly northeast, being continuous beneath the Officer and Amadeus Basins. It defines an orogenic belt connecting provinces of Mesoproterozoic age. A direct east-trending connection between the Musgrave Province and the contemporaneous orogens of Laurentia is precluded by the truncation of the orogenic belt within Australia. The authors suggest the South Australian Craton rotated clockwise, subsequently colliding with the North Australian and West Australian Cratons as an explanation of the architecture of Grenville age seen in Australia.

Sources & Further reading

1. High-resolution aeromagnetic data over central Australia assist Grenville-era (1300-1100 Ma) Rodinia reconstructions