The outer wall is about 30 feet high and 10 feet thick at the base, with sides inclining towards each other.
In the valley of Nepeña the reservoir is three fourths of a mile long by more than half a mile broad, and consists of a massive dam of stone 80 feet thick at the base, carried across a gorge between two rocky hills.
Waldeck mentions an excavation in a garden of the city, which is twenty-three by thirty feet, and fifteen feet deep, with double walls three and six feet thick, where the bones of a tapir and other bones were dug up.
At the side of this tumulus was a quadrilateral elevation covering an area of about two acres, and enclosed by a wall eight feet high and twelve feet thick.
The high plateaus of northern Arizona and southern Utah, north of the Grand Canyon of the Colorado River, are composed of stratified rocks more than ten thousand feet thick and of very gentle inclination northward.
Only about one seventh of a mass of glacier ice floats above the surface, and a berg three hundred feet high may be estimated to have been detached from a glacier not less than two thousand feet thick where it met the sea.
Thus, if the strata between o and p be 300 feet thick, it is self-evident that a somewhat greater thickness of rock must have been removed from the top of the anticlinal arch or "saddleback" at E.
The section shows 8 feet of peat resting on freshwater clay, 2 feet thick, which is underlaid by some 10 feet of "coral sand," with bryozoa.
Between this bed and the overlying greyish clay (from 30 inches to 3 feet thick) there is always in all the bog deposits examined by Mr. Williams a strongly-marked line of separation.
Below the layer of sand the bog or peat was ascertained, on probing it with an instrument, to be at least 15 feet thick.
The general surface of the upland region is covered continuously for miles in every direction by loam or brick-earth (Number 4), about 5 feet thick, devoid of fossils.
The lowest stratum, 2 to 3 feet thick, consists of swamp-peat composed chiefly of moss or sphagnum, above which lies another growth of peat, not made up exclusively of aquatic or swamp plants.
At the ground level the exterior wall is from 3½ to 4½ feet thick, and in one place over 5 feet thick.
The lower Bala limestone (25 feet thick) may be traced over a large area in North Wales.
In Lancashire thin beds of Magnesian Limestone are interstratified with red marls in the upper Permian strata, beneath which there are soft Red Sandstones, estimated by Mr. Hull to be about 1,500 feet thick.
Beneath the layer of lime lay a layer of brown sand, 3 feet thick, in which absolutely nothing was found.
A) 2 feet thick, 2 feet high, and about 15 yards long.
Below this appeared another layer of lime, mixed with sand, 4 feet thick, near the bottom of which were found 40 human skulls, neatly disposed in rows.
Beyond this ring-fence, large surfaces of water stretched away into the farther recesses of the cave, resting on a layer of ice, which appeared to be generally about 2 feet thick.
According to Jomard, the surbase of the second pyramid was in two parts--a stylobate, 10 feet high and 5 feet thick, and a plinth about 3 feet high.
At Karnak they are about 33 feet thick, but as their upper parts have disappeared through the perishable nature of the material, it is impossible to say with certainty what their original height may have been.
A round column 18 feet thick would be 54 feet in circumference.
It had scarp and counter-scarp, each 5 feet thick, and the scarp was surmounted by a breast-work with battlements 5 feet high.
Its parapet-walk was supported upon arches, which served at the same time to buttress the wall itself, a comparatively slight structure about 8 feet thick.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "feet thick" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
