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From none but self expect applause:
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~ Sir Richard Francis Burton
A Paper Argues Some of the Earth's Original Stuff was Lost Due to Comet Impacts
Submitted by KenK on Thu, 2015-07-30 22:18
"Recent observations have shown that the composition of the Earth’s mantle doesn’t match that of ordinary chondrites, suggesting that something else is going on. If the Earth was indeed formed from chondrites, that material must have separated into two different reservoirs, one of which we haven't identified."
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