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Images of Glaciers and Glacial Features |
Glaciers are
masses of ice
that show
evidence of
movement. They
can form in high
mountain ranges
(alpine
glaciers, or
valley
glaciers), or
they may cover
entire land
masses
(continental
glaciers, or ice
sheets), such as
those found in
Antarctica or
Greenland.
Glacial erosion
is accomplished
by the plucking
action of ice as
it moves away
from cliffs, or
by abrasion
caused when
rocks and
sediments in the
ice are dragged
across rock
surfaces. |
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Description |
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Erosional Features of Alpine Glaciation |
Pictures of erosional features resulting from alpine glaciation in mountains across the American West, including the Sierra Nevada, the Rocky Mountains, and the Cascades, along with a few examples from elsewhere in the world. |
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Depositional Features of Alpine Glaciation |
Alpine glaciers move vast amounts of sediment and debris, and deposit the material in landforms that are quite distinct from those of river or wind erosion. |
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Features of Continental Glaciation |
Pictures of erosional and depositional features from continental glaciers and ice sheets. |
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