How ancient oceans of magma may have boosted Earth’s oxygen levels

Chemical reactions involving iron could have increased oxygen-rich compounds in the mantle

Earth illustration

Iron-containing compounds in the magma oceans of early Earth (illustrated) may have helped create the planet’s oxygen-rich, life-sustaining atmosphere.

Simone Marchi, NASA

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Earth

From the Nature Index

Paid Content