| Term: | Palsa |
| Definition: | A mound of peat that develops as the result of the formation of a number ice lenses beneath the ground surface. Typical size is 1 to 7 meters high, 10 to 30 meters wide, and 15 to 150 meters long. Found in the high latitudes. Similar to a pingo. |
| Term: | Palsa |
| Definition: | A peaty permafrost mound possessing a core of alternating layers of segregated ice and peat or mineral soil material. |
| Term: | Palsa |
| Definition: | A peaty permafrost mound possessing a core of alternating layers of segregated ice and peat or mineral soil material |