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Scientists reconstruct ancient impact that dwarfs dinosaur-extinction blast
Date:4/9/2014

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"This is providing significant support for the idea that the impact may have been responsible for this major shift in tectonics," he said.

Reconstructing the asteroid's impact could also help scientists better understand the conditions under which early life on the planet evolved, the paper's authors said. Along with altering the Earth itself, the environmental changes triggered by the impact may have wiped out many microscopic organisms living on the developing planet, allowing other organisms to evolve, they said.

"We are trying to understand the forces that shaped our planet early in its evolution and the environments in which life evolved," Lowe said.


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Contact: Nanci Bompey
nbompey@agu.org
202-777-7524
American Geophysical Union
Source:Eurekalert  

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