Permafrost, Ice wedges
The most conspicuous and controversial type of ground ice in permafrost is that formed in large ice wedges or masses with parallel or subparallel foliation structures. Most foliated ice masses occur as wedge-shaped, vertical, or inclined sheets or dikes 2.5 centimetres to 3 metres wide and 0.3 to 9 metres high when viewed in transverse cross section. Some masses seen on the
posted by StickySpade @ 11:23 PM
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