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Githyanki
2014-Feb-01, 02:19 AM
I remember seeing a reconstruction of the Continent-Rodina by Ron Blakey that has most of the land-masses in a concentrated continent to the South; now it's possible for the Snowball-Earth theory to conclude that the reason there are glacial deposited rocks on every continent is that all the continents were located in the South and covered in ice.

Hornblower
2014-Feb-01, 04:00 AM
If I am not mistaken it goes farther than that. Geologists have found evidence that the oceans froze over even in the tropics, perhaps more than once. After a while, volcanoes put enough greenhouse gases into the atmosphere to thaw things out.

Githyanki
2014-Feb-02, 03:50 AM
Do you have a link for that evidence? I can always google it though...