Funwithfire, i personally cannot read all that because i’m not even studying that stuff or even understand most of the words and have to use google.
I believe the world was more of a slushball because of the sun? because i highly doubt it could of been completely frozen because mars is further then us and wasn’t created into an iceball. Also, i don’t think it could of been an iceball due to the amoeba and other fairly simple life forms surviving. Bacteria can’t handle weather like that.
So, slushball?
Haha, I’m surprised you even tried. Thanks though! It’s actually pretty feasible to start the snowball earth. The sun was younger then and emitted 6% less radiation. Mix that together with some complex greenhouse gases/rock/ocean interaction and you have conditions in which glaciation on massive scales can happen. Once the ice reaches within 30º of the equator, it would create a positive feedback loop. The high albedo of the snow/ice reflect more of the sun’s energy and thus, the earth gets cooler and the ice advances even further, causing higher albedo and more reflection. This continues until the ice covers the planet.
The life could survive by living near hydrothermal vents. That’s actually one possible location for the start of life.
Anyway, thanks for trying to read some of it. There is a lot of geologic evidence supporting snowball earth, but you can also interpret it differently and come up with other hypothesis, such as slushball earth or the zipper rift hypothesis. Anyway, I’m sure you probably don’t care. Thanks though,