Meteor Crater formation revisited

Meteor Crater formation revisited

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The iron mass that smashed into Arizona some 49,000 years ago to create Meteor Crater was just the crumbled remains of a far larger rock body.
What is more, this shower of debris was moving much slower than researchers had previously thought.

The re-assessment is the work of Drs Jay Melosh and Gareth Collins.

The US scientists tell Nature magazine that a re-modelling of the impact has thrown up new ideas about the 1.2km-wide hole in the ground.

Vise o price o ovom krateru na http://news.bbc.co.uk/2/hi/science/nature/4333635.stm



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