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How do we know magma does not originate in the liquid outer core?

Question asked by: carletta

Asked on: 25 Sep 2008

The composition tells us this.

Specifically gases that are found in the magma correspond to having been formed at pressures many times greater than those in the outer core, and rather therefore indicate that it was formed elsewhere.

By: knowitall
Replied at: 05 Oct 2008
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liquid  outer  core  originate  magma  

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