East Warburton Basin
From Infogalactic: the planetary knowledge core
The East Warburton Basin in South Australia is the site of a large impact crater of the Carboniferous period (around 360-300 million years ago). The subterranean structure lies buried at a depth of ~4 km, and measures a minimum of 200 km in diameter.[1] For comparison, Chicxulub crater is about 180 km in diameter.
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.[2]
See also
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References
- ↑ Vast asteroid impact zone found in Australia AFP/Google News, 19 February 2013. Accessed 15 May 2013.
- ↑ Geophysical anomalies and quartz microstructures, Eastern Warburton Basin, North-east South Australia: Tectonic or impact shock metamorphic origin? Tectonophysics Vol. 589, 18 March 2013, Pp. 57–76. Accessed 15 May 2013.
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