Word: crusts
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Dates: during 1950-1959
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...part of the mechanism by which continents grow. The first step, he thinks, is for a slow current in the earth's plastic mantle to start flowing horizontally and then curve downward (see diagram). Where it makes the dive, it drags down a strip of the crust, forming a V-bottomed trench which after many millions of years fills with sediment. Eventually the downward current in the mantle stops flowing. Since the mantle rock at its sides is heavier, it moves in, forcing upward the dragged-down crust and the sediments in the trough. Final result is that...
...where geological specimens are preserved like flies in amber. Among the most interesting of these geological fossils are the guyots, the flat-topped extinct volcanoes that dot the Pacific floor. How did they get down there, the oceanographer asks. Did their weight force them into the earth's crust, like corks pushed into putty? Did the ocean increase in volume and rise above them...
...ocean-bottom problem that fascinates all oceanographers is the origin of the deep troughs that are found mostly in the Pacific. The deepest ones, e.g., the Tonga Trench, the Marianas Trench, have narrow V bottoms that are clear of sediment. They are uneasy parts of the earth's crust. Deep-focus earthquakes rumble out of them, and generally volcanoes spout near...
...Crust. In Oshawa, Ont., Newton Morton was fined $10 for throwing a blueberry pie in a man's face, despite his plea that "the pie was fresh, and my mother baked...
...crust of this old earth ready for Kiesler's structures such as "Endless House" [May 25], which are not premeditated by the prerequisites of conventional planning to secure the bank loan and a dogmatic facade for thy neighbor's sake? American suburbia still says no, I'm afraid...