massindependent
Massindependent refers to a geological time unit within the Precambrian supereon. Specifically, it is the uppermost subdivision of the Paleoproterozoic Era, preceding the Mesoproterozoic Era. The Massindependent period is characterized by significant geological events and the early evolution of life on Earth.
This eon is often associated with the Great Oxidation Event, a period when Earth's atmosphere and oceans
The precise dating of the Massindependent period is based on radiometric dating of rocks and minerals. While