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Show Marvel of the Rockies, as Geologists See II Following two years of study U the field, geologists of Northwester! university have been able to deter-mine deter-mine the sequence of event3 thai brought about the formation of tin Rooky mountains. Trofs. J. T. Stark and C. II. Behri conducted the survey. "Before the mountains began t form into their present shape," sail Behre, "there was a flat area of sei bottom, Into which the gravel and sand from nearby higher country wai being poured. "At the end of that time, called the Age of Reptiles, a pressuri caused by the earth contracting was exerted along the sides of the area. Hot molten lava from Inside the earth was forced In between layer! of rock and the surface bulged upward up-ward Into the beginning of the mountain moun-tain chain. "Finally, as the side pressure became be-came too great, the rocks were folded a 'id broken. The cracks ran down toward to-ward the center of the earth. Thesa were huge north-south cracks, inclined in-clined downward toward the east, and the rocks of the eastern sida moved upward with respect to thosa on the west." The geologist then told how great molten masses from Inside the earth forced their way outward .long thess cracks. |