1. See ridge. 2. A ridge of ice, up to 35 m (100 ft) high and sometimes several kilometers long, in pressure ice.
Elongated uplift of the congealing crust of a lava flow believed to be caused by the pressure of the underlying, still flowing, lava.
A buckled area on the surface of a lava flow that forms because of pressure on the partly solid crust of a moving flow.
An elongate uplift of the congealing crust of a lava flow, resulting from the pressure of underlying and still fluid lava.
A pressure ridge is the big hill of ice that forms when two sheets of ice are pressed together. When two pieces of ice crunch together, there isn't any room for them to both keep floating on the water, so they get forced upward, making a ridge of ice. Can you find two things that you can push together to make a pressure ridge? (Hint: try using something thicker than paper. Make sure it's something that won't break! It helps if you make your pressure ridge on a slippery table.)
A ridge formed by the uplift of a lava flow crust due to pressure of the flowing lava.
a ridge of ice in arctic waters caused by lateral pressure. [AHDOS
process that occurs when wind, ocean currents, and other forces push sea ice around into piles that rise and form small mountains above the level sea ice surface; ridges are initially thin and transparent with very sharp edges from blocks of ice piling up; also see keels.
A pressure ridge is an ice formation typically found on large frozen lakes during the winter. In the most basic sense, a pressure ridge is a long crack in the ice that occurs because of repeated heating and cooling on the surface of the lake.
