As I had feared, the second joint was likely permanently frozen.

The soil below a few feet down is permanently frozen.

The crystal was smashed, the hands permanently frozen at 11:22.

The taller of the two had an arm that seemed permanently frozen into a flexed position.

Any water from these bodies which found its way into these craters could become permanently frozen.

Thus, many more of the world's waterways would be permanently frozen.

In many cases, injuries can cause joints to become permanently frozen in place.

Ordinary pipes could not be buried here, because below about 18 inches the ground is permanently frozen.

A great difficulty at its construction was that the ground on which it was built is permanently frozen.

On the south pole, both the water and carbon dioxide are permanently frozen.

The soldiers' tissue had been saved in an Army pathology warehouse, and the woman had been buried in permanently frozen ground.

Permafrost Permafrost, a layer of permanently frozen ground in areas where temperatures are too low to permit complete thawing.

Permanently frozen ground is known as permafrost.

The permanently frozen ground beneath the surface layer, softened now by spring and summer melt, allowed no drainage to percolate through.

There also exists a possibility that this increase in temperature will release carbon stored in permanently frozen soils, which are now melting.

The coastal plain is underlaid by up to 1,500 feet of permanently frozen water, rock, sand and loose soil - called permafrost.

Some of these environments are influenced and defined by the presence of permafrost, permanently frozen sub-soil.

Permanently frozen catchment areas limit the amount of minerals available, though there is usually a small intake from soils during the summer thaw.

They are zones of enhanced soil moisture that route water downslope over the top of the permanently frozen ground just below the surface (ice table).

Soils in Antarctica are nearly two-dimensional habitats, with most biological activity limited to the top four or five inches by the permanently frozen ground below.