Palsas are peat mounds with a permanently frozen peat and mineral soil core. They are a typical phenomenon in the polar and subpolar zone of discontinuous permafrost. One of their …

A palsa is a periglacial structure characterized by a very thin active layer (AL) and can reach heights of over 2 meters. It is extremely stable despite its reduced thickness and is used as an …

Apr 25, 2017 · A palsa is an oval-shaped, low-lying mound of frozen earth. This geographic feature is sometimes referred to as a frost heave, or a bulge in the earth’s surface which is …

Mar 1, 2011 · Palsas are peat-covered mounds with a permanently frozen core; in Finnish Lapland, they range from 0.5 to 7 m in height and from 2 to 150 m in diameter. These small …

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Jun 2, 2020 · Palsas are peat mounds or plateaus with a perennially frozen (permafrost) core and formed primarily in subarctic wetland areas in the northern hemisphere (Fig. 1). Palsas …

Apr 1, 2022 · We find that iron mineral dissolution by fermentative and dissimilatory iron(III) reduction releases aqueous Fe2+ and aliphatic organic compounds along collapsing palsa …

Palsas are low, often oval, ice-rich peat mounds that have a frozen peat and mineral soil core. They are usually between 0.5 to 10 metres high and from 2 up to 500 metres in length.

Apr 1, 2025 · "palsa" published on by null. A mound or ridge, largely made from peat, that contains a perennial ice lens and is found in the damper sites of mires in periglacial areas. …

May 8, 2018 · palsa A mound or ridge, largely made from peat, that contains a perennial ice lens and is found in the damper sites of bogs in periglacial areas. Widths are in the range 10–30 m, …