Word: crusts
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Geol. 28 1hf. Vulcanism. Volcanoes and their relation to eruptive rocks in general. Earthquakes and their relation to the earth's crust. Three times a week, first half year...
...stone and sand stone about their edges and the strata of these rocks is therefore much thicker here than in regions like the Mississippi basin which have been often submerged. One of the great theories of mountain formation takes these sedimentary rocks and their overloading of the earth's crust for the cause of the uplifting. The study of such movements and their influence on neighboring formations well explains the existence not only of many of the mountains and valleys but also basins and river-systems...
...last group, except 15 and 25, are courses of research. Geology 4, elementary half course under professor Shaler. This course can be taken by seniors as an extra only. It gives a general knowledge of the subject, and includes lectures on the origin and nature of the earth's crust, continental and mountain fold, volcanoes, dykes, glaciers, etc. Goology 4a, elementary half course, supplementary to Geology 4; consists of laboratory and field exercises with occasional lectures. Course 8, a starred course, treats of general critical geology, under Professor Shaler, Assistant Professor Davis and Dr. Wolff. The work consists of lectures...
According to this hypothesis, the earth's crust has been estimated to be from forty to two hundred millions of years old, and since organic life would have been impossible before the formation of this crust, we find the time that animal life has been upon the globe. Man may have existed between one and two millions years ago. To enable the audience to appreciate the length of time that human beings have lived, the lecturer said that it bore the same relation to what is commonly known as the historic period as the whole life...
...picture complete; at the other end stood the freshmen, in weighty council of war; now they come on with a rush and a shout. Out through the door the mass is squeezed, like a bed-sheet through a clothes-wringer, and down the campus they slide on the smooth crust of snow. The fight soon divided itself into two sections-the freshmen with the bowl man in their midst, striving to gain the gate on Thirty-fourth street, and thus put their man in safety, while the sophs were trying to tug the bowl after them and establish the desired...