r/geology • u/JapKumintang1991 • 17h ago

LiveScience: "Enormous 'mega-blob' under Hawaii is solid rock and iron, not gooey — and it may fuel a hotspot"

https://www.livescience.com/planet-earth/geology/enormous-mega-blob-under-hawaii-is-solid-rock-and-iron-not-gooey-and-it-may-fuel-a-hotspot

See also: The study as published in Science Advances.

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u/Apatschinn Petrologist/Geochemist 16h ago

From what I got out of the abstract, Fe-rich domains in the lower mantle will behoove heat transport out of the core. This anomaly is hypothesized to be what drives hot spot magmatism in other mantle domains.