What confuses me is where did all the salt go when the ice froze in the first place? Surely it was seawater initially and so was salty? Did it just increase the saltiness (sp) of the oceans to the current levels that we are used to? Obviously all the snow that has fallen on it since was fresh water but that presumably evaporated from the sea somewhere and so doesn't really effect the balance?
I'm assuming that the total salt mass/volume of seawater is a constant over a long enough period of time and the problem is just that we have only been around during the "lots of frozen water" stage and won't really like the "not as salty as it could be" stage?
I'm assuming that the total salt mass/volume of seawater is a constant over a long enough period of time and the problem is just that we have only been around during the "lots of frozen water" stage and won't really like the "not as salty as it could be" stage?