How do we know about the early atmosphere? main content.

How do we know about the early atmosphere?

How Do We Know About the Early Atmosphere? AMNH/R.Mickens

Exhibition Text

Among the oldest rocks on Earth are many sedimentary rocks known as banded iron formations. They formed in an atmosphere and ocean containing little or no free oxygen.

For Educators

Topic: Earth Science

Subtopic: Atmosphere

Keywords: Ocean, Oxygen, Atmosphere, Paleoclimatology, Sedimentary rocks

Audience: General