description Yarrabubba Overview
Yarrabubba is a deeply eroded meteorite impact structure in Western Australia's Yilgarn Craton. Radiometric dating places the impact at 2,229 +/- 5 million years ago, in the Palaeoproterozoic era. The original crater is not preserved as a complete surface feature, so the structure is identified through impact-deformed rocks, impact melt, and geophysical evidence. Its age places it within Earth's early impact record and makes it a reference site for research into the planet's ancient geology.
help Yarrabubba FAQ
Where is the Yarrabubba impact structure?
Yarrabubba is in Western Australia's Yilgarn Craton. The structure is deeply eroded, so the original crater is not preserved as a complete surface feature.
How old is the Yarrabubba impact?
Radiometric dating places the impact at about 2,229 million years ago, with an uncertainty of plus or minus 5 million years. It occurred during the Palaeoproterozoic era.
Why is Yarrabubba difficult to see as a crater?
Billions of years of erosion removed most of the original crater form. Geologists identify the structure through its disturbed rocks and impact-related evidence rather than a clear circular rim.
What kind of event formed Yarrabubba?
Yarrabubba formed when a meteorite struck the ancient Australian crust. The impact produced a large geological structure that has since been heavily worn down by erosion.
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