pressure ridge
Frozen collision line
A pressure ridge is a raised formation created when ice sheets or tectonic plates collide and buckle upward.
In polar regions, pressure ridges form jagged walls across sea ice that can block travel: The expedition had to navigate around massive pressure ridges.
The term also applies to geological features where lava or rock has been compressed into elongated mounds.
- iceWater's solid form
- arcticOf extreme northern cold
- Arctic CircleNorthern latitude marking perpetual daylight zone
- glacierSlow-moving ice mass
- pack iceConsolidated floating sea ice
ice field · crevasse · floe · frozen · polar · polar expedition · buckle · fault · fault line · tectonic · tectonic plates · thrust · uplift · crack · shelf · winter · Antarctic · sled dog
ice surface topography
pressure ridgesmooth ice
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