[Rockhounds] Earth's Mantle and Crust Are in a Fiery Battle to the Death … of Supercontinents

[pmodreski at aol.com]

VERY cool title, whatever the content of the article is like!
Thank you for posting, Kreigh!
Pete


-----Original Message-----
From: Kreigh Tomaszewski <kreigh at gmail.com>
To: Rockhounds at drizzle.com: A mailing list for rock and gem collectors <rockhounds at rockhounds.drizzle.com>
Sent: Thu, Nov 7, 2019 11:59 am
Subject: [Rockhounds] Earth's Mantle and Crust Are in a Fiery Battle to the Death … of Supercontinents

Earth's hot, gooey center and its cold, hard outer shell are both
responsible for the creeping (and sometimes catastrophic) movement of
tectonic plates. But now new research reveals an intriguing balance of
power — the oozing mantle creates supercontinents while the crust tears
them apart.
https://www.livescience.com/earth-mantle-crust-supercontinents.html
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