Word: crusting
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Vema's discovery of a crack following the top of the ridge gave Wegener's theory a new round of attention. The curving crack might be a rift, a familiar geological feature that indicates the earth's crust has been under tension and has pulled apart...
Thorium, on the AEC's back burner for at least five years, is more abundant in the earth's crust than uranium, but usable concentrations are limited. It occurs in monazite sand deposits throughout the world, notably in Brazil, India, South Africa, Ceylon, Madagascar, Indonesia, Malaya and Russia's Ilmen Mountains. In the U.S. it is present in the sand of East Coast beaches, is also found in Idaho and Wyoming...
Critics occasionally object to Clemens' odd recipes (he once prepared an omelet from an ostrich egg), and often accuse him of what they consider heinous culinary sins: he has been known to dip breaded cutlets in gravy (making a soggy crust), mix fresh cream with Madeira (which makes the cream run), and boil beef after searing it in a pan (making the meat tough). But Der Fernsehkoch has a ready answer: "As an actor, I know what goes over...
...since the Roman aqueducts crumbled away. Last year the U.S. built 37 schools and equipped five teachers' training colleges (the nation has only 25 college graduates). In what may prove the greatest boon of all to the Libyan standard of living, after four years of probing the desert crust for oil, Esso Standard (Libya) last month drew an astonishing 17,500 bbl. a day in a test run of its first Zelten field well, hopefully spudded in Zelten...
...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...