But one human skeleton has so far been found in Santorin, and that is of an inhabitant who had evidently been overtaken in his flight and crushed beneath the burning scoriae from the volcano.
This eruption went on until 1870, and the quantity of scoriae vomited forth during its continuance welded three islets, which had hitherto been separate, to the principal island, of which they now form part.
Coming now to Ice Springs Craters in Utah, we find here three small craters formed of scoriae and lapilli (volcanic ashes consisting of small angular stony fragments).
From these such quantities of sand andscoriae were thrown out, that, in the course of three or four months, a double cone was formed 450 feet high, which is now known as Monte Rosso.
As can be seen, this form of scoriae have six-sided or hexagonal shapes.
The lightest of all kinds of scoriae is what is known as thread-lace scoriae.
Floating masses of ashes andscoriae sometimes occur so thick as to retard the progress of vessels.
You can form some idea of the great lightness of such scoriae when you learn that they contain only 1.
As is common in the case of explosive eruptions, volcanic dust and scoriae were blown high into the air, and, being carried by the winds, fell on the roofs of houses and on the land at a distance of 150 miles.
The walls and roofs of these great vaults are composed of rough bristling scoriae of the most fantastic forms.
That volcanic bombs have actually been subjected to a spinning motion while in the air can sometimes be shown by the fact that masses ofscoriae are frequently found in the interior with air cells largest at the centre of the bomb.
The interstratification of loam and volcanic ejectamenta was probably occasioned by the fluviatile mud having gradually enveloped the cones of loose scoriae after they were completely formed.
We have as yet no proof that Man witnessed the origin of these hills of lava and scoriae of the middle phase of volcanic action.
The showering down of the various ejected materials round the orifice of eruption gives rise to a conical mound, in which the successive envelopes of sand and scoriae form layers, dipping on all sides from a central axis.
In it we recognise the ordinary form of a crater, for which we have been prepared by the occurrence of scoriae scattered over the surface of the soil.
Nearly all the scoriae of the upper part of the cone have been swept away, those portions only remaining which were hardened by the contact or proximity of the dike.
It seems that, when the ancient lake of the Limagne first began to be filled with sediment, no volcanic action had yet produced lava and scoriae on any part of the surface of Auvergne.
Hot cinders and fine scoriae were then cast up to a vast height, and covered the ground as they fell to the depth of more than ten feet, for a distance of eight leagues from the crater, in a southerly direction.
They were often hid from the sight by a quantity of scoriae that had formed a crust over them; and the lava, having been conveyed in a covered way for some yards, came out fresh again into an open channel.
Islets, which are now but heaps of scoriae and volcanic ashes, were once perhaps as fertile as the hills of Tacoronte and Sauzal.
As we examined this rock at the distance of two cables' length, we found that it was a mass of lava three or four toises high, full of cavities, and covered with scoriae resembling coke.
In the interior of a burning crater, near those hillocks formed by ejections of scoriae and ashes, the motion of the ground is felt several seconds before each partial eruption takes place.
Thence it becomes difficult to judge whether the emission of scoriae may have been more frequent at the time when an earthquake has been felt in the Apennines.
We observe hillocks and intumescences caused by the action of the elastic vapours, cones of broken scoriae and ashes which cover the funnels.
In the first imperfect attempts the air was heated to little more than 80 degrees Fahrenheit, yet the results were satisfactory, and the scoriae from the furnace evidently contained less iron.
In a bed ofscoriae several acres in extent, at Old Land Farm in Maresfield, the Rev.
V or fork-like form of the angle face kept the work steadily under the centre of the hammer, allowing the scale or scoriae to fall into the apex or bottom of the V, which thus passed away, leaving the faces of the angle quite clear.
But now the clear flow of pure metal into the moulds was secured, while the scoriae were mechanically held back.
If by any want of due care on the part of the smith, the surfaces be concave or have hollows in them, the scoriae will be sure to lurk in the recesses, and result in a defective welding of a most treacherous nature.
Slaggy crust, formed chiefly ofscoriae of a glassy nature.
So much smoke, and possibly scoriae and cinders were mingled with them, that their light gleamed but faintly amid the gloom of the night.
Owing to the power of steam, and their railway, the present miners carry down the scoriaeon trucks to the sea-coast, to Ergasteria, and there smelt them.
The quantity of scoriaethrown out, which seems now perfectly inexhaustible, is in itself sufficient evidence of the enormous scale on which the old mining was carried on.
The bed of the river is hard basalt; and at the bridge of Santa Madalena are seen two distinct lava-currents, one above the other, separated by a horizontal bed of scoriae 8 feet thick.
On viewing the first of these, we recognize the ordinary form of a crater, for which we have been prepared by the occurrence of scoriae scattered over the surface of the soil.
No flood could have passed through the valley since the scoriae fell, or these would have been for the most part removed.
Hot cinders and fine scoriae were then cast up to a vast height, and covered the ground as they fell to the depth of more than 10 feet, and for a distance of 8 leagues from the crater in a southerly direction.
Horrid streams of a-a have to be cautiously skirted, which after rushing remorselessly over the kindlier lava have heaped rugged pinnacles of brown scoriae into impassable walls.
The greater number consisted merely of a ring of red scoriae or slags, cemented together: and their height above the plain of lava was not more than from fifty to a hundred feet; none had been very lately active.
Probably this is the case with the water which flows into the head of Port Desire, and likewise with the Rio Chupat, on the banks of which masses of highly cellular scoriae were found by the officers employed in the survey.
From the same rents issued showers of scoriae and fragmentary matter, which were spread out so as to form equally uniform and horizontal beds, intervening between the sheets of lava.
An Italian name for a variety of volcanic rock of an earthy texture, seldom very compact, and composed of an agglutination of fragments of scoriae and loose materials ejected from a volcano.
Six volcanic cones, composed of scoriae and fragmentary lava, were formed on the line of a chasm which ran in the direction from N.
In another place he says that "the rivers of lava in the plain resembled a vast heap of cinders, or the scoriae of an iron-foundry, rolling slowly along, and falling with a rattling noise over one another.
Every year some volcanic eruptions take place, and a rude estimate might be made of the number of cubic feet of lava and scoriae poured or cast out of various craters.
It was in perfect fusion, unattended with any scoriae on its surface, or any gross materials not in a state of complete solution.
Negro) and these beds include fragments of red decomposed true scoriae hardened by zeolite, and of black retinite: we have then here good evidence of volcanic action during our tertiary period.
In scoriae crystals of feldspar have been discovered by Heine in the refuse of a furnace for copper fusing, near Sangerhausen, and analyzed by Kersten (Poggend.
Volcanic scoriae and lava streams are therefore portions of Pyriphlegethon itself, portions of the subterranean molten and ever-undulating mass.
We must, however, distinguish here between the scoriae accidentally formed, and those which have been designedly produced by chemists.
By it an enormous column of ashes and scoriae was cast into the air.
The surface of the Val del Bove appeared like a molten lake; scoriae were thrown up from the craters to a great height, and loud explosions were heard at frequent intervals.
Nine miles from Catania the village of Torre di Grifo is passed, and the road then enters a nearly barren district covered with the lava and scoriae of 1527.
Four other mouths were afterwards opened in a line; they threw up quantities of scoriae and ashes, and afterwards lava.
But volcanic action is very intermittent, the layers of lava and scoriae do not accumulate evenly and regularly like the layers of a tree.
If all the minor cones now visible on Etna could be removed, with all the lava and scoriae which have ever proceeded from them, the mountain would appear scarcely perceptibly smaller.
They ejected volumes of smoke, large quantities of scoriae and ashes, and afterwards lava, which, uniting into one torrent, flowed with a front of 450 feet for 8 miles.
A popular route to the summit leads along this ridge of volcanic scoriae and up the steep snow slope above.
Upon this plane the volcano erected its cone, chiefly by the expulsion of scoriaerather than by extensive lava flows, to a farther height of nearly a mile and a half.
Innumerable craters build cones of lava and scoriae along the Cascade uptilt, and scatter clouds of volcanic ashes upon the steady sea winds, to blanket the country for hundreds of miles with deep layers of future soil.
This place was formerly important as one of the principal mineral centres of the island, and the large accumulations of scoriae in several mounds near the coast prove that mining operations were conducted upon an extensive scale.
As there is no reason to suppose, that the craters formed of scoriae and lava were erupted whilst standing in the sea, we can see why the rule does not apply to them.
The scoriaceous fragments and the calcareous matter are associated in the most irregular manner, sometimes in obscure beds, but more generally as a confused breccia, the lime in some parts and the scoriae in others being most abundant.
In the centre are the scoriae which result from the operations carried on.
A quantity of morsels of scoriae is found which, having been in a soft state when extracted, have retained the imprint of the piece of wood, the end of which was evidently charred.
In proportion as the mass of metal increased, a workman, with a poker made of damp green wood, brought out the scoriae which floated on the top, and stirred the metal so as to fine it.
The examination of these scoriae proves that iron was then made by one single operation, and not liquid pigs fit for casting, or to be converted into iron by a second series of operations.
Adams one may descend in huge jumps through the loose scoriae and volcanic ashes.
From a deep canyon it rises two thousand feet as steep as broken scoriae can lie.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "scoriae" in a variety of sentences. We hope that you will now be able to make sentences using this word.
