On some of the hills, beds of calcareous matter, both in an earthy and in a crystalline form, including fragments of glossy scoriae, are associated with the basaltic strata.
It accords with this view, that I found on Signal Post Hill, a mass of earthy, calcareous matter of the same nature, mingled with scoriae.
The development in the typical Silurian region of the Welsh borders is characterised by the abundance of calcareous matter which is found there as compared with that which exists in the other British localities.
The Llandovery strata are sandy, often conglomeratic, with a fair amount of calcareous matter in places.
Thus the drainage from the overlying clay is directed to certain points, where a greater amount ofcalcareous matter is dissolved than elsewhere.
Here it is evident that the supply of calcareous matter must be super-abundant.
Largest casting which I could find (consisting chiefly of calcareous matter), on extremely poor pasture land at the bottom of the valley mentioned under (1.
In some places, the castings on Chalk Downs consist largely of calcareous matter, and here the supply is of course unlimited.
Sandstone is an aggregate of such grains, which often cohere together without any visible cement, but more commonly are bound together by a slight quantity of siliceous or calcareous matter, or by iron or clay.
Sometimes only concretionary nodules abound in them; but these, where there is an increase in the quantity of calcareous matter, unite into regular beds.
In truth these polyps are animals so small that a single one only forms a minute quantity of calcareous matter.
He goes on to say that the animal parts having been destroyed, the shell remains, being composed of calcareous matter.
Sometimes osseous or calcareous matter is found deposited, to a greater or less extent, in the substance of the parietes of the sac, or between the laminæ of fibrin which it contains.
Calcareous matter is usually entirely wanting, or present only in traces, whilst free silica is found in very variable, often considerable quantities.
Most of it appears as a soft, earthy, often chalky marl, with a considerable but variable amount of calcareous matter.
Connection between the Absence of Organic Remains and the Scarcity of calcareous Matter in metamorphic Rocks.
Sandstone is an aggregate of such grains, which often cohere together without any visible cement, but more commonly are bound together by a slight quantity of siliceous or calcareous matter, or by oxide of iron or clay.
They have obtained in those counties the provincial name of "Crag," applied particularly to masses of shelly sand which have long been used in agriculture to fertilise soils deficient in calcareous matter.
They are composed of fine layers of calcareous matter secreted by the body of the worm within, and lined by a thin leathery membrane which may be easily exposed by dissolving away the mineral matter as just described.
The whole then became consolidated by the percolation of calcareous matter; and the cylindrical cavities left by the decaying of the wood were thus also filled up with a hard pseudo-stalactitical stone.
Upon examination, this white stratum is found to consist of calcareous matter, with numerous shells embedded, most or all of which now exist on the neighbouring coast.
We made a long stretch across the upper plain, and encamped on the bluff, where the grass was very green and good, the soil of the upper plains containing a considerable proportion of calcareous matter.
The soil appears to be full of calcareous matter, with which the rocks are incrusted.
The river at this place is more open than for some distance above, and, for the time, the black precipices have disappeared, and no calcareous matter is visible in the soil.
Unfortunately, this really handsome shell is usually incrusted with coralline or calcareous matter, which must be removed with acid before a good idea of its appearance can be had.
The buds become independent corallites and secrete an excess of calcareous matter at their bases, which cements them to the parent stock and increases the thickness of the branch.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "calcareous matter" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
