noun
definition
A shell or husk; a cod or pod.
definition
A fine-grained sedimentary rock of a thin, laminated, and often friable, structure.
verb
definition
To take off the shell or coat of.
Examples of shale in a Sentence
This time, she paid no attention to the shale or placing her feet right.
The scraping of leather against leather, the hollow clatter of stone and shale, the rustle of whatever creature settled behind her.
They were forced to slow their pace when the trail became covered with slippery shale and the path grew steeper.
They are at a depth of about 12 ft., in slaty shale containing Llandeilo fossils and contemporaneous felspathic ash and scoriae.
Romney shale 1000f 300
Far, far, away, beyond the stone and shale, she thought she saw a swatch of green.
Similarly it is necessary, in view of the hydrostatical relations of water and mineral oils, and the volatile character of the latter, that the porous stratum should be protected from water and air by an overlying shale or other impervious deposit.
Brazil's chief industrial importance is due to its situation in the heart of the "Brazil block" coal (so named because it naturally breaks into almost perfect rectangular blocks) and clay and shale region; among its manufactures are mining machinery and tools, boilers, paving and enamelled building bricks, hollow bricks, tiles, conduits, sewer-pipe and pottery.
The Allegheny ridges have only a thin stony soil; but good limestone, sandstone, shale and alluvial soils, occur in the valleys and in some of the plateaus of the extreme west.
I Marcellus shale.
Chicopee shale 200 ft.
She sprawled on its floor, listening to the sound of crunching shale.
Two large refineries, one on Newtown Creek, Long Island, and another in South Brooklyn, also on Long Island, were in successful operation when the abundant pr oduction of petroleum, which immediately followed the completion of the Drake well, placed at the disposal of the refiner a material which could be worked more profitably than bituminous shale.
It is limited to Disco Island, and perhaps to a small part of the Noursoak Peninsula, and the neighbouring country, and consists of numerous thin beds of sandstone, shale and coal - the sideritic shale containing immense quantities of leaves, stems, fruit, &c., as well as some insects, and the coal pieces of retinite.
From the name schistos, and the mode of formation, there can be little doubt that this species was the salt which forms spontaneously on certain slaty minerals, as alum slate and bituminous shale, and which consists chiefly of the sulphates of iron and aluminium.
If much iron should be present in the shale then it is preferable to use potassium chloride in place of potassium sulphate.
It is the centre for a farming region, in which there are deposits of coal, iron, lead and shale, and there are various manufactures in the city.
The city is in the Kansas-Oklahoma oil and gas field, and is surrounded by a fine farming and dairying region, in which special attention is given to the raising of small fruit; oil, gas, cement rock and brick shale are found in the vicinity.
These are also called the Upper Limestone Shale, a similar group being found in places below the limestone, and called the Lower Limestone Shale, or, in the north of England, the Tuedian group. Going northward the beds of limestone diminish in thickness, with a proportional increase in the intercalated sandstones and shales, until in Scotland they are entirely subordinate to a mass of coal-bearing strata, which forms the most productive members of the Scotch coalfields.
These very thick seams are, however, rarely constant in character for any great distance, being found commonly to degenerate into carbonaceous shales, or to split up into thinner beds by the intercalation of shale bands or partings.
The nature and extent of these operations vary with the character of the coal, which if hard and free from shale partings may be finished by simple screening into large and nut sizes and smaller slack or duff, with a final hand-picking to remove shale and dust from the larger sizes.
But when there is much small duff, with intermixed shale, more elaborate sizing and washing plant becomes necessary.
The district is rich in limestone, coal, ironstone, shale and fireclay, all of which are worked.
Besides building materials, such as sandstone, slate, &c., the only mineral to be found within the canton is bituminous shale, the products of which can be used for petroleum and asphalt.
The formations most widely recognized are the Helderberg limestone, the Onondaga limestone and the Hamilton shale.
These sediments are now mostly in the form of red sandstone and shale, with conglomerate, black shale and coal in some places.
Cuyahoga shale 250 300
Sunbury shale 5 30,,
Bedford shale 50 150, ,
Ohio shale 3002600 ft.
Wetumka shale 120
Stuart shale 90 280
McAlester shale 1150-1500
There is an extensive area in the south-east part of the state containing shale clay of a superior quality for making common brick.
In Pennsylvania the sandstone and shale, at its maximum, reaches 4400 ft., but even within the limits of the state this formation has thinned out to no more than 300 ft.
Thus western Europe in early Carboniferous time was occupied by a series of constricted, gulf-like seas; and on account of the steady progress of intermittent warping movements of the crust, we find that the areas of clearer water, in which the limestone-building organisms could exist, were repeatedly able to spread, thus forming those thin limestones found interbedded with shale and sandstone which occur typically in the Yoredale district of Yorkshire and in the region to the north, and also in the culm deposits of central Europe.
Figure 9, Plate I., shows the top of the De Beers' crater with basalt overlying the shale.
The commonest of such substances in England are chalk and clay, but where local conditions demand it, limestone, marl, shale, slag or any similar material may be used, provided that the correct proportions of lime, silica and alumina are maintained.
Traces of annelids and probably other organisms have been found in the bands of shale occurring in the south-west of the shire of Ross and Cromarty, in the isle of Raasay, and at Cailleach Head, and are the oldest relics of animal life yet found in Great Britain.
In that belt they consist mostly of greywacke, grit, shale and other sedimentary rocks, but in the southwest of Ayrshire they include some thick lenticular bands of limestone.
The Middle Oolite consists mostly of sandstones with bands of shale and limestones, and includes fossils which indicate the English horizons from the Kellaways Rock up to the Coral Rag.
Occasional beds of tuff are intercalated among these lavas, and likewise seams of fine clay or shale which have preserved the remains of numerous land-plants.
The imports of ore in that year amounted to 1,862,444 tons of the value of £1,420,379 The oil shale industry is wholly modern and has attained to considerable magnitude since it was established (in 1851 and following years).
The Vindhyans are well-stratified beds of sandstone and shale, with some limestones.
Among the manufactures are zinc spelter-there are large smelters here-clay products (chiefly vitrified brick, sewer pipe and tile; the clay being obtained from a great underlying bed of shale), blasting powder, packinghouse products and planing-mill products.
The surrounding country is a magnificent livestock and farming region, and in the immediate vicinity are valuable deposits of coal, of limestone, of shale suitable for sewer pipe and of fire clays.
Kerosene shale (torbanite) is abundant and is systematically worked.
There are unlimited supplies of clay, shale and limestone, the three essential constituents of Portland cement, and the manufacture of this, begun in 1902, at once assumed important proportions.
The lowest member (Table Mountain Sandstone) consists of sandstones with subordinate bands of shale.
In mountain valleys, rock or shale, commonly the most impermeable materials met with in such positions, are sometimes not reached till considerable depths are attained.