FANDOM


The Orosirian period was the third period of the Paleoproterozoic era and lasted from 2.023bya to 1.85bya.  During this time the atmosphere became oxygenic, the Vredefort and Sudbury Basins appeared, and there was much orogeny.
Orosirian

The Vredefort Dome

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.