Wizard of Changes -- ©cdozo 2004 to 2015 (cdozo) wrote,
Wizard of Changes -- ©cdozo 2004 to 2015
cdozo

A Piece of The Beginning

From MSNBC's Chunk of original earth found:

". . . these rocks contain an early Earth mixture of helium, lead and neodymium isotopes which suggest the mantle rock beneath the crust that yielded them is a virgin pocket of Earth's original material. That pocket had survived for 4.5 billion years under Baffin Island without being mixed by plate tectonics or erupted onto the surface."
Tags: nature
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