pressure ridge
ice
Quick Summary
Pressure ridge
Pressure ridge in multiyear sea ice thrust up against the northernmost coast of Ellesmere Island, Queen Elizabeth Islands, Canada.
A pressure ridge is a ridge formed on floating ice when large areas of sea ice press against each other, causing buckling or crushing under lateral pressure from wind or tide. This phenomenon is common in arctic seas and results in rough, irregular ridges. The continued movement of a liquid interior can also create a pressure ridge on a congealing lava flow.12
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