Pressure ridge

rdf:langString Pressure ridge

rdf:langString A pressure ridge is a topographic ridge produced by compression. Depending on the affected material, "pressure ridge" may refer to: * Pressure ridge (ice), between ice floes * Pressure ridge (lava), in a lava flow * , in a fault zone In a seismic context, a pressure ridge can range in size from a few-metres-long mound, to a kilometres-long . It is the result of one or several earthquakes occurring on certain types of , such as or stepovers along strike-slip faults. A pressure ridge can for instance be the result of a deep-set obstruction on the fault plane, which leads to material being pushed up during earthquakes.