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It is very seldom that in the same country one continuous formation, such as the Silurian, is, as in this case, more fossiliferous and less altered by volcanic heat in its older than in its newer strata, and still more rare to find an underlying and unconformable group like the Cambrian retaining its original condition of a conglomerate and sandstone more perfectly than the overlying formation.
The surface rock is a coarse sandstone superincumbent upon a lighter-colored conglomerate that looks like Shawangunk grits, and when this latter is reached by the water it seems to be rapidly disintegrated by it, thus forming the deep excavations alluded to. My eyes had never before beheld such beauty in a mountain stream.
The corals which lived in the lagoon-reefs at each successive level, would be preserved upright, and they would consist of many kinds, generally much branched. The conglomerate which was formed of rounded pieces of the branched corals, on the shores of the lagoon, would differ from that formed on the islets and derived from the outer coast; yet both might have accumulated very near each other.
Allied with the see whose jurisdiction includes the Diocese of the Department of the Seine, should be considered that of Seine and Oise, which has its bishop's throne esconced in the Cathedral of St. Louis at Versailles. To all intents and purposes the town is one of those conglomerate units which go to make up the "traveller's Paris."
On the quartz, there rest beds of a conglomerate several thousand feet in thickness, which have been upheaved by the red granite, and dip at an angle of 45 degs. towards the Peuquenes line.
In about four miles we reached its foot, and found its sides so bare and steep that I took off my boots for the ascent. It was formed for the most part like a stupendous turtle back, of a conglomerate granite, with no signs of water, or any places that would retain it for a moment, round or near its base.
In other places the country rock is a loose sandstone, the disintegration of which has left broad stretches of drifting sand, white, golden, and vermilion. Where this sandstone is a conglomerate, a paving of pebbles has been left, a mosaic of many colors, polished by the drifting sands and glistening in the sunlight.
A white conglomerate, with many particles of quartz, almost blending into the paste. 7th. Highly siliceous, fine-grained white sandstone. 8th and 9th. Red and white beds not examined. 10th. 11th.
Our world, too, with all its breathing life, is but a leaf to be folded with the other strata, and if I am only patient, by and by I shall be just as famous as imperious Caesar himself, embedded with me in a conglomerate. He began reading: "There is no new thing under the sun," said the Preacher.
The principal divisions into which the lacustrine series may be separated are the following: first, Sandstone, grit, and conglomerate, including red marl and red sandstone; secondly, Green and white foliated marls; thirdly, Limestone, or travertin, often oolitic in structure; fourthly, Gypseous marls.
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