Search results
Results from the WOW.Com Content Network
The Laurentide ice sheet (LIS) was a massive sheet of ice that covered millions of square miles, including most of Canada and a large portion of the Northern United States, multiple times during the Quaternary glaciation epochs, from 2.58 million years ago to the present. [2]
The ice would act as a dam as water could not drain through the ice sheet, which in the Wisconsin period covered most of the proglacial river valleys. Numerous small, isolated water bodies formed between the moraine and the ice front. As the ice sheet would continue to melt and recede northward, these ponds combined into proglacial lakes. In ...
The former valley glacier as part of this ice sheet collided with the Laurentide Ice Sheet and it and the erratics of quartzite and quartzitic conglomerate were diverted southward along the boundary between these two ice sheets. Together they flowed parallel to the eastern flanks of the Rocky Mountains as far south as northern Montana before ...
The Laurentide Ice Sheet continued to recede. Continued warming shrank the ice front towards present day Hudson Bay. Here, the Lake Agassiz northward outlet drained into the Tyrrell Sea. This breach dropped the water level below the eastern Kinojevis outlet. The drainage was followed by the disintegration of the adjacent ice front at about ...
As the Laurentide Ice Sheet decayed at the end of the Wisconsin glaciation, lakes were created in depressions or behind moraines left by the glaciers. Evidence for these lakes is provided by low relief topography and glaciolacustrine sedimentary deposits. [1]
When the Laurentide ice sheet progressed through the process of deglaciation, it created many new landforms and had various effects of the land. First and foremost, as huge glaciers melt, there is a consequently large volume of meltwater. The volumes of meltwater created many features, including proglacial freshwater lakes, which can be sizable ...
The Laurentide Ice Sheet, which covered Canada and what is currently the New England landscape, was a massive sheet of ice and the primary feature of the Pleistocene epoch in North America. Geologists are currently working on calculating the thinning of the Laurentide Ice Sheet, which can improve the accuracy in de-glacial paleoclimate models ...
Glacial Lake Cape Cod was a glacial lake that formed during the late Pleistocene epoch inside modern Cape Cod Bay.After the Laurentide Ice Sheet retreated, glacial ice melt accumulated at the terminal moraine and blocked up the escape of glacial meltwater, creating the lake. [1]