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Inside Gosse Bluff, Northern Territory, Australia.

frankmcdonald2 (Premium member) > albums > Frank McDonald - October 2008 Vol 8

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The original explosion of a 1 kilometre diameter comet or low-density asteroid was about 500 metres above where these rocks now lie. They were bent and broken and drawn from lower depths for later exposure by erosion. Resembling a crater, this 4.5 kilometre-wide structure is the result of an impact that uplifted and upturned rocks that were 3 kilometres below the surface of 142.5 million years ago. The convulsion, felt around the world, must have destroyed most life forms within hundreds of kilometres. The fine atmospheric debris would have affected world weather patterns for years. The original 20 kilometre-wide crater that lay about 500 metres above it has since been stripped away by erosion. The blast energy released is estimated to be 1 million times that of the Hiroshima bomb.

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