Sentence examples for permeable sand from inspiring English sources

A modified version of the previous model, using the water table as the impermeable lower boundary, is used to evaluate the permeability of the low-permeability stiff clay layer (3.2 × 10− 10 cm2) and permeable sand (7.2 × 10− 7 cm2) beneath it.

A part of the northwestern Kalahari (desert), Boesmanland is a semiarid region having deep, permeable sand beds with a vegetational cover consisting of perennial grasses, low-lying shrubs, and thorny woodlands.

At its highest end, by the Alpine foothills, it is made up of parallel ferretto (red loam composed of ferrous clay) ridges, running from north to south, with areas of gravel and permeable sand between them.

Permeable sand was placed in an 11.2-m-long chamber between the bulkheads.

These layers are underlain by porous and permeable sand formation of varying thickness, grain sizes and moisture content.

It is concluded that A. marina contributes to the maintenance of permeable sand and thereby sustaining suitable conditions for the lugworm population itself.

The upper fine-grained sediments of the deep lead form an aquitard that separates the basalt from the permeable sands and gravels beneath.

Field observations show that many larger tidal channels are scoured deeper (15 50 m) than the thickness of the surface impermeable mud layer (3 30 m) and are floored by permeable sands that may act as conduits for vertical recharge.

For low-permeable sand, a good result of oil recovery can be achieved by low concentration of polymer slug.

On the other hand, the low-permeable sand facies of dunes do not produce significant anisotropy at the block scale.

The starting point for the study is a 2D model for crossbedded shallow-marine/tidal sands with 8 sediment classes, ranging from high-permeable sand to low permeable clay included as thin layers.