How Did the Earth’s Crust Grow – #365papers – 2017 – 133

#365papers for May 13, 2017

Rozel, Golabek, Jain, Tackley, and Gerya, 2017, Continental crust formation on early Earth controlled by intrusive magmatism: Nature.

What’s it about?

The Earth didn’t always have continents. This paper explores how the planet’s first continents probably formed. The major hypotheses were that the continents formed by volcanic eruptions primarily, or by upwellings of magma that never erupted on the surface. It seems that the latter is most likely.

Why does it matter?

Understanding where the continents came from helps us understand the processes occurring inside the Earth, making it possible to possibly better predict future events.

Why did I read this?

I thought that reading this would give me something new to teach students in my introductory geology course. It did.

Published by paleololigo

Scientist (Paleontology, Geochemistry, Geology); Writer (Speculative and Science Fiction, plus technical and non-technical Science); Mom to great boy on the Autism spectrum; possessor of too many hobbies.

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