Moraine - material produced by glacial erosion - unsorted (huge boulders & fine powder) and angular (processes that form material involve freezing and shattering).
- Ground moraine - spread all over the ground as a glacier retreats up valley in warmer times.
- Terminal moraine - rocks deposited in a ridge at the maximum advance of the ice.
- Lateral moraine - ridges of moraine that come from the valley sides and run parallel to those valley sides.
- Medial moraine - a ridge of rocks running down the middle of a valley formed by 2 lateral moraines from 2 glaciers coming together.
- Recessional moraine - run parallel to terminal moraines and these ridges of material mark the retreat of a glacier. Each recessional moraine marks a point where the ice has been static long enough in the glaciers retreat for material to build up.
- Push moraine - mounds of material found where a drop in temperature or increase in precipitation allows glacial re-advance, and the glacier pushes previously deposited moraine forward into a new landform. This can change the orientation of the stones found in the original landform.
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