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Word: rifts (lookup in dictionary) (lookup stats)
Dates: during 1950-1959
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Usage:

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...

Author: /time Magazine | Title: Science: How Oceans Grew | 9/14/1959 | See Source »

...miles clear around the earth (see map). As in the Atlantic, the cracks generally follow the tops of rises in the ocean bottom. They stay midway between large land masses, but in a few places they run ashore, forming, for instance, the steep-sided Jordan Valley and the famous rift system in East Africa which contains both Lake Tanganyika and the Red Sea. Another crack runs ashore in Mexico, to form the Gulf of California and the Imperial Valley...

Author: /time Magazine | Title: Science: How Oceans Grew | 9/14/1959 | See Source »

...rifts indicate this process may be still continuing, perhaps helped by an expansion of the earth. As Heezen sees it, the earth's crust breaks under this tension from within, forming a narrow, steep-sided rift that grows slowly wider. When the rift is about 60 miles wide, a fresh rift forms in its center. More rifts form as long as the tension continues, and their steep sides accumulate in a broad band of rugged terrain on both sides of the youngest rift. Since the tension is caused by rising molten material, this cracked-up region...

Author: /time Magazine | Title: Science: How Oceans Grew | 9/14/1959 | See Source »

Atlantir. The rift that strikes north from the Gulf of California may some day, many millions of years away, put ? broad ocean between Los Angeles and the rest...

Author: /time Magazine | Title: Science: How Oceans Grew | 9/14/1959 | See Source »

...Evans' aggressiveness has paid off. Crane's net income in the first half rose more than 60%, to $2,333,000. Just how much farther Evans will go toward reducing the size of Crane is a matter of wide speculation. His rift with Landa over how to run the company appears healed. If he can overcome the ill will he has generated through the drastic changes in Crane's organization, roughriding Tom Evans may well add Crane to the list of his successes...

Author: /time Magazine | Title: Business: The Tough Boss | 8/31/1959 | See Source »

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