The intensity and mechanism of both glaciations are still under investigation and harder to explain than the early Proterozoic Snowball Earth.
Assahat ad tamoɣənt ən tismad tin sanatət ilanat harwa ɣor aləmad izar assohatnat ye alaɣi as akal tabəlaq ən aman ən Ɗrotérozoïque waren təmda.