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The East Warburton Basin in South Australia is the site of a large impact crater of the Carboniferous era. The subterranean structure lies buried at a depth of ~4 km.

Scientists identified the impact formation through analysis of shocked quartz grains from the area after a circular anomaly appeared in seismic tomography studies of the region.

28°00′S 140°30′E / 28°S 140.5°E / -28; 140.5

1. Geophysical anomalies and quartz microstructures, Eastern Warburton Basin, North-east South Australia: Tectonic or impact shock metamorphic origin?

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