Mass of ice resulting from the accumulation and compression of snow; it moves under its own weight.
Frontal moraine marking the glacier’s most advanced position before it recedes.
Basin dug out of soft rock by a glacier.
River of ice formed by the flow of the firn.
A rocky ridge set crosswise to the glacier tongue.
Deep narrow fissure that forms on the surface of the glacier.
Deposit of rock debris (till) that is dragged along and deposited under the advancing glacier.
Deposit of rock debris scraped from the ground and pushed to the front of the glacier.
Relatively even, gently sloping tract of land, formed by the action of a glacier’s meltwater.
Water that runs beneath the glacier tongue, forming rivers and occasionally lakes at the foot of a glacier.
Deposit of rock debris scraped from the sides of raised land by ice.
Chaotic mass of unstable ice bordered by crevasses.
Glacier with no tongue that remains in its cirque.
Semicircular cavity with steep sides, carved out by ice.
Accumulation of snow inside a cirque; compressed by its own weight, it is converted into ice and feeds the glacier.
Crevasse between the firn and the rock face; it appears when the glacier breaks away from the rock face.