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A stratum, eighty feet thick, of hard and very compact impure whitish limestone, weathering bright red, with included layers brecciated and re- cemented. Obscure marks of shell are distinguishable in it. 4th.
It is a wondrous spectacle wall upon wall of lofty limestone, making what seems an impenetrable barrier, closing around us, threatening to shut out the very heavens; at our feet an ever-narrowing mountain pass or valley, the shelves of the rock running vertically down. When at last from our dizzy height our driver bids us look down, we discern the gray roofs of St.
The corals are sometimes standing on the rocks in the position they had when growing: others are lying in fragments, as they were broken and heaped by the waves; and others were reduced to a compact limestone by the finer trituration before consolidation into rock.
It is a forest of beech and pine; it grows upon a mountain-side so steep that only here and there is there a ledge on which to camp. Great precipices of limestone diversify the wood and show through the trees, tall and white beyond them.
These explorers likewise reported ruins of extensive dwellings in the same region made of sandstone and limestone.
We started at dawn pursuing a south-south-east direction, and at the end of one mile rounded a bluff point; the limestone hills to the eastward gradually decreased in elevation and we ascended one of them to gain a view of the surrounding country.
The scarcity of limestone in many extensive regions of metamorphic rocks, as in the Eastern and Southern Grampians of Scotland, may have been the result of some action of this kind; and if the limestones of the Lower Laurentian in Canada afford a remarkable exception to the general rule, we must not forget that it is precisely in this most ancient formation that the Eozoon Canadense has been found.
No wisest chicken, I presume, can recall the first moment when the chalk-oval surrounding it gave way, and instead of the cavern of limestone which its experience might have led it to expect, it found a world of air and movement and freedom and blue sky with kites in it.
The amount of lime found in the drainage waters of limestone land teaches no lesson of value for other land, the excessive loss in the former case being due oftentimes to erosion that creates channels through the subsoil, through which soil and lime pass.
Iron is found in many parts of the State, and the ores have been worked to considerable extent. Among other valuable mineral products may be mentioned porcelain and potter's clay, fire clay, fuller's earth, limestone of many varieties, sandstone, marble, and salt springs.
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