United States or Falkland Islands ? Vote for the TOP Country of the Week !
This formation consists of a calcareous freestone, usually of small thickness, but attaining in some places, as in the typical area of Cheltenham and the Western Cotswolds, a thickness of 250 feet. It sometimes rests upon yellow sands, formerly classed as the sands of the Inferior Oolite, but now regarded as a member of the Upper Lias.
These strata, which we class as the uppermost member of the Oolite, are of limited geographical extent in Europe, as already stated, but they acquire importance when we consider the succession of three distinct sets of fossil remains which they contain. Such repeated changes in organic life must have reference to the history of a vast lapse of ages.
The Archaeopteryx macrurus, Owen, recently acquired by the British Museum, affords a second example of the discovery of the osseous remains of a bird in strata older than the Eocene. It was found in the great quarries of lithographic limestone at Solenhofen in Bavaria, the rock being a member of the Upper Oolite.
Altogether, the plants and animals of this minor continent convey the impression of an early system of things, such as might be displayed in other parts of the earth about the time of the oolite.
The plates of the layers get intermingled and entangled in one another; but Omalius d'Halloy warns you not to believe in geological divisions. This statement was a relief to them; and when they had seen coral limestones in the plain of Caen, phillades at Balleroy, kaolin at St. Blaise, and oolite everywhere, and searched for coal at Cartigny and for mercury at Chapelle-en-Juger, near St.
At two o'clock in the afternoon he was rattled along by this new means of locomotion, under the familiar monotonous line of bran-coloured stones, and he soon emerged from the station, which stood as a strange exotic among the black lerrets, the ruins of the washed-away village, and the white cubes of oolite, just come to view after burial through unreckonable geologic years.
In their forms they more frequently resemble the reef-building polyparia of the Pacific than do the corals of any other member of the Oolite. The last-mentioned stars are supposed to represent a perfected condition, and the others an immature state.
His geologic vision was so acute, that though the road along which he passed from York to Newcastle in the post chaise was from five to fifteen miles distant from the hills of chalk and oolite on the east, he was satisfied as to their nature, by their contours and relative position, and their ranges on the surface in relation to the lias and "red ground" occasionally seen on the road.
We are now in the great valley which runs right across England from south-west to north-east, from Axminster in Devonshire to Hunstanton in Norfolk, with the chalk always on your right hand, and the oolite hills on your left, till it ends by sinking into the sea, among the fens of Lincolnshire and Norfolk. But what made that great valley? I am not learned enough to tell.
Another stone is also employed, and one far better suited for building, because it can be obtained in blocks of almost any size, and carved with the utmost delicacy. This is oolite, the stone of which the Bell Tower is built.
Word Of The Day