When, in the interior of a burning crater, we are seated near those hillocks formed by ejections of scoria and ashes, we feel the motion of the ground several seconds before each partial eruption takes place.
The extraneous matter or impurities which rise to the surface of liquids in boiling or fermentation, or which form on the surface by other means; also, the scoria of metals in a molten state; dross.
Defn: Of or pertaining to scoria; like scoria or the recrement of metals; partaking of the nature of scoria.
Founding) Defn: The scoria on the surface of molten metal in the ladle.
We passed along the tolerably high dam, while the scoria rolled regularly off the sides at our feet.
A house and garage of this construction erected on the Scoria Lily ranch near Hettinger (see Tour 9), because of their unusually low building cost, have attracted wide attention.
As the coal burns underneath, the earth overburden crumbles and falls, taking with it all rocks, trees, and vegetation on the surface, leaving in its wake red scoria and other less brightly colored clays.
Many are crowned with brick-red scoria (clay baked in the earth by the heat of burning lignite beds lying adjacent), and others have scoria formations protruding from their sides.
Here erosion has formed, and continues to form, a fantastic array of buttes in which layers of brick-red scoria and gray, blue, and yellow clays are vividly exposed.
In the first decade, the wheezing steam automobile chugged with difficulty over sticky gumbo roads in the Red River Valley, and over scoria trails in the west.
The rocks, long in a state of fusion, have taken, in cooling, those singular forms peculiar to scoria and basalt.
As the scoria from bronze foundries is partly composed of these silicates it is indubitable that a kind of glass was formed in the earliest metal-works where this alloy was made.
The invention of siliceous fluxes as applied to the extraction of iron, and facilitating the production of a liquid scoria which could flow out in the form of a stream of fire, put the finishing stroke to the preparation of iron.
Wherever there was good iron in any of the Roman provinces, veritable mountains of scoria are found.
The quantity of scoria left by the primitive founders should alone be sufficient to teach us to how great an extent iron was in use.
The very stones lying upon the hills looked like the scorched and withered scoria of a volcanic region; and even the natives, judging from the specimen I had seen to-day, partook of the general misery and wretchedness of the place.
Upon some of the hills the small loose stones had a vitrified appearance--in others they looked like the scoria of a furnace, and appeared to be of volcanic origin, but nowhere did I observe the appearance of anything like a crater.
Cones made of fragments may have sides as steep as the angle of repose, which in the case of coarse scoria is sometimes as high as thirty or forty degrees.
In places small mounds of scoria show that the eruptions were accompanied to a slight degree by explosions of steam.
As no rock or gravel was available for macadamizing, scoria or volcanic cinder was used, of which material there is an inexhaustible supply along the right-of-way.
This scoriais very light, weighing about 1,700 pounds per cubic yard.
The ore of this mine is of a peculiar quality, and its silver is best separated from the scoria by the smelting process, of which I shall treat more fully when I come to speak of the mines of Regla.
The whole mass being now poured out into troughs, the scoria was washed off from the amalgam, which was gathered and put into a stout leathern bag with a cloth bottom, and the unabsorbed mercury drained out.
The solid substances emitted by volcanoes are popularly styled ashes, cinders, or scoria and lava.
As to the form of volcanic cones, those of ashes, cinders, and scoria are of course steepest; those of lava thrown out when liquid having a very gradual slope.
Of or pertaining to scoria; like scoria or the recrement of metals; partaking of the nature of scoria.
On reaching the edge of the crater we find the gravel covered over by black and purple scoria or slag the superposition of the scoria on the gravel being visible in several places, showing that the former is of more recent origin.
I conceive, that the earth, in its first state, was a globe, or rather a spheroid of compact glass, covered with a light crust of pumice stone and other scoria of the matter in fusion.
There were seven of us walking on the crater of the volcano: great banks of sulphur on the right, dark glaciers of lava on the left, high walls of scoria and volcanic crust enveloping us all about.
Now red scoria and pumice and sulphur boiled and rolled where the hard lava had frayed our boots.
At the back of my fence I had rigged up a triangle, from which hung a hook on which to suspend my gipsy-pot, and the fireplace was backed round with large blocks of scoria stone, to prevent my fence from being burned down.
He approached it with caution, but found that he must not risk a near approach, for he set the loose scoria in motion, and it trickled on before him, and went over out of sight with a rush.
Here, Oliver, lad, look at the great pieces of scoria and pumice.
The disgruntled cattle-owners, under a guard of ten men, were resting quietly far from anything resembling excitement in one of the untracked places among the mesas and scoria buttes.
Rolling hills surrounded the little pocket on all sides, and here and there a red scoria butte thrust its ugly height out of the plain.
The six sat in the shade of a huge bowlder that had broken off and rolled down the side of the red scoria butte.
These scoria contained gold and silver, iron under different states, and that in different proportions unknown to us, but which, perhaps, are those that gave origin to the platina.
What fell off during the cooling was the flos, what was driven off by blows of a hammer was the squama or scoria æris.
The road lay through a very wild, desolate country, roughly enclosed by stone walls loosely put together from the mass of scoria and volcanic rocks, which literally strewed the ground for miles.
The dull red colour of the scoria gives one the impression that the flames have been of very recent date.
We came upon a bed of scoria ashes, stretching for about a mile on either side of us.
The mouths of extinct craters can be easily traced by the utter barrenness around, and in sharp contrasts to the lava and scoria are the rich valleys running up into the interior of the island, where all grows in tropical luxuriance.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "scoria" in a variety of sentences. We hope that you will now be able to make sentences using this word.
