Their model, Kessler explains, " is essentially a hypothesis about what is important in the formation of patterned ground ."
12.
"' Patterned ground "'is the distinct, and often symmetrical natural pattern of geometric shapes formed by ground material in periglacial regions.
13.
Through time, repeated freeze-thaw cycles smooth out irregularities and odd-shaped piles to form the common polygons, circles, and stripes of patterned ground.
14.
Sometimes the surface around scalloped terrain or scalloped topography displays " patterned ground ", characterized by a regular pattern of polygonal fractures.
15.
The opening of the valley is buttressed by a sidelobe of the Argosy Glacier and the valley floor is covered with patterned ground polygons.
16.
Typically, the type of patterned ground in a given area is related to the prevalence of larger stones in local soils and the frequency of freeze-thaw cycles.
17.
In permafrost soils with an active upper layer subject to annual freeze and thaw, patterned ground can form, creating circles, nets, ice wedge polygons, steps, and stripes.
18.
The western hills, although less elevated than the Cuillin, exhibit a superb collection of periglacial landforms including boulder sheets and lobes, turf-banked terraces, ploughing boulders and patterned ground.
19.
Patterned ground-large polygonal ground patterns and ice wedges caused by frost over a long period of time are common throughout the region except for areas of solid bedrock.
20.
Each of the paintings within the medallions held figures that were painted on a gold leaf background, and are set on a patterned ground of blue or rose brown.
