Previous Episode: Episode 92 - Snowball Earth
Next Episode: #94 - Chert

The Flannelcasters talk about Banded Iron Formations. These rocks are super old, no longer are formed on Earth, and record the appearance of abundant oxygen.

The Flannelcasters talk about Banded Iron Formations. These rocks are super old, no longer are formed on Earth, and record the appearance of abundant oxygen.