Down near the Earth’s core, there are zones where seismic waves slow to a crawl. New research finds that these enigmatic and descriptively-named ultra-low velocity zones are surprisingly layered. Modeling suggests that it’s possible some of these zones are leftovers from the processes that shaped the early Earth — remnants of incomplete mixing like clumps of flour in the bottom of a bowl of batter.
Title: Possible chemical leftovers from early Earth sit near the core
Sourced From: www.sciencedaily.com/releases/2021/12/211230130931.htm
Published Date: Thu, 30 Dec 2021 13:09:31 EST
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