glaciers
glaciers develop when mountain snow builds up into masses of ice.if there is a slope the glacier then moves steadily downhill carving its way through landscape.
from the poles to the equator glaciers develop wherever it is cold enough for winter snowfall to survive the summer thaw.layers of snow compress into glacial ice and move downhill under the influence of gravity.glaciers follow existing rivers valleys and may merge together into much larger ice sheets.
over hundred of thousands of years,glaciershave a huge impact on the landscape around them.rocky debris becomes embedded in glaciers,and cuts into the landscape changing the shape of the valleys they move through.this debris is then dumped on to surrounding landscapes wherever the glaciers comes to rest and melts.
from the poles to the equator glaciers develop wherever it is cold enough for winter snowfall to survive the summer thaw.layers of snow compress into glacial ice and move downhill under the influence of gravity.glaciers follow existing rivers valleys and may merge together into much larger ice sheets.
over hundred of thousands of years,glaciershave a huge impact on the landscape around them.rocky debris becomes embedded in glaciers,and cuts into the landscape changing the shape of the valleys they move through.this debris is then dumped on to surrounding landscapes wherever the glaciers comes to rest and melts.
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