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Updated: May 10, 2025
Sand reefs are formed where the water is so shallow near shore that storm waves cannot run in it and therefore break some distance out from land. Where storm waves first drag bottom they erode and deepen the sea floor, and sweep in sediment as far as the line where they break.
Resort to deficit financing in prosperous times could easily erode international confidence in the dollar and contribute to inflation at home. In this belief, I shall submit a balanced budget for fiscal 1962 to the Congress next week. There has been a firm policy of reducing government competition with private enterprise.
CAVERN DEPOSITS. Even in the zone of solution water may under certain circumstances deposit as well as erode.
During seasons of heavy rain the surplus discharge of river water will be very heavy, and a cataract will pour over the spill-way. But it will rush across a bed of rock, and will be unable to erode its channel. And it will be employed to generate electrical power which will open and shut the lock-gates and generally operate the Canal machinery.
X-ray examination of the sella turcica shows what is called erosion of the bone as it yields to the pressure of the growing gland. The ideal sella turcica for the ideal pituitary type is a large room in which the gland may grow and reach its maximum size and so its maximum function, without needing to exert pressure or destroy and erode bone in front of it, to the side of it or behind it.
Later the earth wrinkled again in various ways and places so that new ridges and mountains were formed with new systems of lakes and oceans and rivers; and again the elements continued to erode and partially destroy the higher masses and to lay down new and later series of sedimentary rocks upon the old.
It gave Rick a shiver to think about it. Even now, the pyramids were old enough to have seen a change of north stars. They looked good for another three thousand years or more. It would take a lot of time to erode away that much massive stone. Then he stopped thinking about it, because the telescope was in motion again, and there was work to be done.
Since rivers are known to erode their beds and banks, it is a fair presumption that, aided by the weather, they have excavated the valleys in which they flow. Moreover, a bird's-eye view or a map of a region shows the significant fact that the valleys of a system unite with one another in a branch work, as twigs meet their stems and the branches of a tree its trunk.
The bottom of the storm is broken up into innumerable waves and currents that surge against the hillsides like sea-waves against a shore, and these, reacting on the nether surface of the storm, erode immense cavernous hollows and cañons, and sweep forward the resulting detritus in long trains, like the moraines of glaciers.
Like a river, a glacier does not everywhere erode. In places it leaves its bed undisturbed and in places aggrades it by deposits of the ground moraine. CIRQUES. Valley glaciers commonly head as we have seen, in broad amphitheaters deeply filled with snow and ice.
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