# How was the Marinoan Glaciation triggered?

The Marinoan Glaciation (a.k.a. Elatina Glaciation) was a glaciation that is thought to have occurred towards the end of the aptly-named Cryogenian period at ca. 650Ma. It is particularly known as one of the glaciations that may or may not have been a Snowball Earth.

Whether or not this glaciation was truly global, there is evidence that this glaciation existed. But what are the current hypotheses on how this glaciation was triggered?

Enhanced weathering on the orogenically and thermally buoyed supercontinents would have stripped $CO_2$ from the atmosphere, initiating a cooling trend that resulted in continental glaciation.