Which was first the ice age or the great flood?
I assume you mean the biblical flood. But in any case, this cannot actually be answered with any certainty. There have been many, many ice ages and even more great floodings since the earth started spinning around the sun. It would be logical to say that the first coalecence of hydrogen and oxygen to create water would have to happen before it could freeze, so a flood (or pooling of water, at least) would have to occur before an ice age. However, i still have not answered your question because that is impossible. You should reconsider and rephrase.