Leftovers from core formation

Late addition of meteoric material to the Earth's mantle could explain the presence of iron-loving elements that should have entered the Earth's core at its formation. But experiments at realistic conditions show that enough palladium could have remained in the mantle.

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Figure 1: Alternative models for the distribution of highly siderophile elements (HSEs) within the solid Earth.


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Marty, B. Leftovers from core formation. Nature Geosci 1, 290–291 (2008).

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