A group of geologists and map designers have reconstructed the geological ages of Essos, Westeros, and other regions described in A Song of Ice and Fire. The results are incredible - and reveal just how violent and mythic real-life geological changes can be.
Using the same kinds of tools that allow geologists to model historical and future climates, the group has made educated guesses about what kinds of natural disasters broke and made this dragon-infested planet. They’ve named each geological period after Earth’s geological periods, just to make it easier. But then they’ve invented events like massive vulcanism, plate tectonics that divided Essos from Westeros, and more. It’s marvelously detailed and mesmerizing. They’ve acutally created entire histories for each period. Here they are:
Geologic events occurring XX million years ago (Mya) on Westeros: