Shallow-water deposits of the immense thickness found in mountain ranges can be laid only in a gradually sinking area.
Even surfaces developed on rocks of discordant structure, such as the Piedmont shows, are produced by long denudation, and we may consider the Piedmont as a peneplain formed by the wearing down of mountain ranges, and recently uplifted.
Pre-Cambrian rocks are exposed in various parts of the continent, usually by the erosion of mountain ranges in which their strata were infolded.
Structurally, the folds of this region are of ancient date, but the area is crossed by a series of depressions formed by faults, and the intervening strips, which have not been depressed to the same extent, now stand up as mountain ranges.
They are quite abundant in some localities, particularly in California on mountain ranges.
Mountain ranges of California and Lower California, chiefly in the southern parts of the former.
Mountain ranges of Mexico, north to Colorado and west to California.
It does yield along its weakest lines with crushing, folding, bulging, and the formation of mountain ranges.
We have given the barest outline of the history of mountain ranges and of the theory of their formation as worked out in the last third of the present century, and, I might add, chiefly by American geologists.
Dynamical and chemical metamorphism may occur at less depth than purely heat metamorphism, and it may be presumed takes place in the axes of mountain ranges, even above sea-level.
What geographers recognise as deeply dissected plateaus, so extremely rough that they pass for mountain ranges, do occur on the western border of the continent, however, and will be described later.
The crests of mountain ranges, or mountain chains, are sometimes specified in treaties as defining territorial limits.
The relief of the surface typically includes a central plain, sometimes dipping below sea-level, bounded by lateral highlands or mountain ranges, loftier on one side than on the other, the higher enclosing a plateau shut in by mountains.
Burma between the Strait of Malacca and the Gulf of Siam; mountain ranges 7000 ft.
China and the Central Asiatic provinces of Russia; forms in the main an immense plain, sloping from the Altai and other mountain ranges on the S.
This river debouches on the north coast, and is a noble stream forty miles in length, coursing through alluvial stretches backed in the far distance by grand tiers of mountain ranges.
As this is a point of great interest in its bearing on the dispersal of plants by means of mountain ranges, I have endeavoured to obtain a few illustrative facts:-- 1.
It inhabits the Alps up to a great height, but occurs also on the Pyrenees and other South European mountain ranges as far east as Palestine, where again it is found in the Lebanon.
In Europe they chiefly occur in Scandinavia and the central and southern mountain ranges, whilst they are mostly absent from the intervening lowlands.
A number of mountain ranges, supporting broad plateaus between, traverse it from east to west.
To these may be added, as producing considerable though less marked effects, the nature of the soil, the prevailing winds, the position of mountain ranges, and the currents of the ocean.
The interior of the peninsula consists of an elevated tableland, surrounded and traversed by mountain ranges.
Climate is also modified greatly by the position of mountain ranges, especially when ridges extend east and west, screening it from the north or leaving it exposed unsheltered in that direction.
Between the valley of the Upper Nile and the low lands which skirt the south-western shores of the Red Sea and the Gulf of Aden is a region of elevated plateaus from which rise various mountain ranges.
Forests also occur on the humid slopes of mountain ranges up to a certain elevation.
Andalusia consists of a great plain, the valley of the Guadalquivir, shut in by mountain ranges on every side except the S.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "mountain ranges" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
