We refer to this period as the Pleistocene epoch. Crustal rebound of almost 300 meters has occurred in the Hudson Bay region of Canada since melting of the North American continental ice sheet several thousand years ago. Rebound is equally dramatic in Scandinavia. Fall and rise of sea level. Accompanied the advance and retreat of continental glaciers, respectively.
Oceans supply the water for the glaciers.
We know that if all the ice were to melt today, sea level would rise about 60 or 70 meters. Cooler climates and more runoff resulted in formation of pluvial lakes. Great Salt Lake and Mono Lake are remnants of much larger pluvial lakes such as Lake Bonneville. Causes of Ice Ages Widespread glaciation appears to have been a rare occurrence in the earth's history. Earlier glaciations are indicated by tillites.