United States or Georgia ? Vote for the TOP Country of the Week !
At a point about equidistant from either end is a fault in the layers of shales and sandstone; this fault is noticeable as a slight irregularity in the otherwise continuous sides of the cut, and is a point at which the layers of rock on the east have fallen vertically, the western side remaining in its original position.
Perhaps now and then the basins became long, brackish estuaries, whose low shores were swept by the incoming tide and were in turn left bare at its retreat to receive the rain prints of passing showers and the tracks of the troops of reptiles which inhabited these valleys. The Triassic rocks are mainly red sandstones, often feldspathic, or arkose, with some conglomerates and shales.
These were of sandstone marl, the caps consisting of hard red and green shales, while the swelling boles, colored by gypsum, were as white as loaf-sugar. It was another specimen of the handiwork of deluges which no man can number. Far away to the southwest, and yet faintly seen through the crystalline atmosphere, were the many-colored knolls and rolls and cliffs of the Painted Desert.
At home to the office till dinner, and after dinner my wife cut my hair short, which is growne pretty long again, and then to the office, and there till 9 at night doing business. This afternoon we had a good present of tongues and bacon from Mr. Shales, of Portsmouth. So at night home to supper, and, being troubled with my eye, to bed. This morning Mr.
'If the Shales are such contemptible wretches as to turn you out just because they're offended with me, I should have thought you'd have spirit enough to tell them what you think of such behaviour, and be glad never more to serve such brutes! Father, what do you say? I'll tell you how it was. She narrated the events of the afternoon, amid sobs and ejaculations from her mother and Betsy.
In some places below the Wenlock formation there are shales of a pale or purple colour, which near Tarannon attain a thickness of about 1000 feet; they can be traced through Radnor and Montgomery to North Wales, according to Messrs. Jukes and Aveline.
The lower beds sometimes alternate with shales and coal: at Wolgan I found in carbonaceous shale leaves of the Glossopteris Brownii, a fern which so frequently accompanies the coal of Australia.
The shales are made up very largely of clay, mixed, however, usually with sand and other substances, forming a conglomerate. Both sandstones and shales are divided into layers or beds, and are said to be stratified. It is this stratified or bedded structure that gives us the first clew to the way in which these rocks were formed.
Has it ever occurred to you to ask the question, what effect the cottage would have upon your feelings if it had no roof? no visible roof, I mean; if instead of the thatched slope, in which the little upper windows are buried deep, as in a nest of straw or the rough shelter of its mountain shales or warm coloring of russet tiles there were nothing but a flat leaden top to it, making it look like a large packing-case with windows in it?
When such tine vegetable sediment is mixed, as is often the case, with clay, it becomes similar to the bituminous limestone and calcareo- bituminous shales of the coal-measures.
Word Of The Day