Thus if a tuft of coralline be held in the flame of a Bunsen burner, it will glow so brilliantly as to remind us of the lime light.
Suppose that the valve of the Crania upon which a coralline has fixed itself in the way just described is so attached to the sea-urchin that no part of it is more than an inch above the face upon which the sea-urchin rests.
The foundation of all this calculation is, of course, a knowledge of the length of time the Crania and the coralline needed to attain their full size; and, on this head, precise knowledge is at present wanting.
The Upper or Red Crag of Suffolk--like the Coralline Crag--has a limited geographical extent and a small thickness, rarely exceeding 40 feet.
Similarly, other limestones are composed almost entirely of the skeletons of corals; and such old coralline limestones can readily be paralleled by formations which we can find in actual course of production at the present day.
Though of small extent and thickness, the Coralline Crag is of importance from the number of fossils which it contains.
The shells of the Coralline Crag are mostly such as inhabit the seas of temperate regions; but there occur some forms usually looked upon as indicating a warm climate.
The shells indicate, upon the whole, a temperate or even cold climate, decidedly less warm than that indicated by the organic remains of the Coralline Crag.
Such reefs are often of vast extent, both superficially and in vertical thickness, and they fully equal in this respect any of the coralline limestones of bygone ages.
The White or Coralline Crag of Suffolk is the oldest of the Pliocene deposits of Britain, and is an exceedingly local formation, occurring in but a single small area, and having a maximum thickness of not more than 50 feet.
In the countless coralline islands which strew the Pacific, another restricting factor is found in their monotonous geological formation.
Thence the regular coralline bank, whose beach is the Bab, runs some distance down coast, allowing passage to our ugly old friend, Wady Salmá.
Scatters of the usual fragments lay about, and the blocks of white corallineexplained the old names--Whitton, Whitworth, Whitby.
Dredging the sand-bar and cutting a passage in the soft coralline reef will give excellent shelter and, some say, a depth of seventeen fathoms.
It is a square measuring six paces each way, mud and coralline showing traces of plaster outside.
The beach on which we landed was composed entirely of white coral sand, and upon it we found graceful branches of a brown and white coralline (Isis hippurus), and numbers of pearly-chambered spirulas.
The bed rock is serpentine, covered with sandstone, and there is a fringe of recent coralline alluvium round the shore, while beds of coral on the high land of the interior indicate upheaval since the formation of the older alluvium.
The western side, which is of very recent formation, consists of a flat shore plain of coralline alluvium, mixed with decayed vegetable matter and loam brought down from the hill.
In the high islands, where the structure is primitive, metamorphic, or volcanic, the conditions for social development are more favourable than in the low islands, of a coralline structure.
Oftener, also, darker in the corallinethan in the volcanic islands.
A soft coralline limestone of a comparatively recent geological formation, probably of the Tertiary period.
Thus are commenced those coralline islets of which you have seen so many in these seas.
Those of the third class are the low coralline islands usually having lagoons of water in their midst; they are very numerous.
Even in the coralline islands traces of volcanic agency have come to light in the shape of pumice-stones, which have been dug out of the solid coral rock at considerable depths.
The foundation of all this calculation is, of course, a knowledge of the length of time the Crania and the coralline needed to attain their full size; and, on this head, precise knowledge is at present wanting.
Suppose that the valve of the Crania upon which a coralline has fixed itself in the way just described, is so attached to the sea-urchin that no part of it is more than an inch above the face upon which the sea-urchin rests.
In such masses, (for example of flint and agate,) we find included shells and coralline bodies.
The Lower Limestone probably belongs to the Tongarian stage of the Oligocene series, and the Upper Coralline Limestone to the Tortonian stage of the Miocene.
The Blue Clay forms, at the higher levels, a stratum impervious to water, and holds up the rainfall, which soaks through the spongy mass of the superimposed coralline formations.
Coralline limestone is also found in great abundance and in high northern latitudes; but the stone-producing coral now exists only in very warm seas.
There is thus an area of several thousands of square miles covered to a great depth with this coralline limestone.
The Coralline Crag is the oldest bed; but this formation does not occur in an undisturbed state, except in Sudbourne Park and about Orford.
The patient little toiler of the sea, the coralline insect, is busy with them, as he is with his limestone trees.
Coralline and Sertularia, to show likeness between the animal Sertularia and the plant Coralline.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "coralline" in a variety of sentences. We hope that you will now be able to make sentences using this word.
