continental drift


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Fig. 118 Continental drift . The continent of Pangaea 200 million years ago.

continental drift

the theory originally put forward in 1912 by Alfred Wegener that continental masses were continuously moving over the surface of the globe as though floating on a sea of molten rock. Doubted extensively for many years, the theory is now generally accepted and supported by evidence from geomagnetic studies, the distribution of plants and animals, and the study of PLATE TECTONICS. Two hundred million years ago the present continents were joined in a universal land mass called Pangaea. Since that time, the continents have drifted apart and the study of plate tectonics shows that they are still moving. Over a period of 400 million years Britain has drifted from south of the tropic of Capricorn to its present position - over 80° of latitude. Pangaea was probably formed by previously separate continents coming together, and the Appalachian, Caledonian, Greenland and Scandinavian mountains probably resulted from North America and northern Europe coming into collision. Previous separation would account for the position of the equator and South Pole 440 million years ago.
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To keep things cool this summer, THE WANTED have joined forces with Twentieth Century Fox and Blue Sky Studios to celebrate the return of one of the world's most beloved franchises when ICE AGE: CONTINENTAL DRIFT hits cinemas on July 13th, 2012.
ICE AGE: CONTINENTAL DRIFT is directed by Steve Martino and Michael Thurmeier, and produced by Lori Forte and John Donkin.
After severing Bacon's hold on the honor, historians have since named an 18th century theologian and a 19th century geologist as potential originators of the continental drift theory.
To date however, there has been no realistic mathematical-physical theory describing the interaction between the convective movement in the Earths mantle and the continental drift.
ANIMAL MAGIC: Ice Age 4: Continental Drift A WOMAN SCORNED: Gretag Gerwig stars in Lola Versus BLEAK BUT BRILLIANT: Christian Bale in The Dark Knight Rises ABDUCTED: In Your Hands starring Kristin Scott Thomas
With the NATIP erupting in the NorthernHemisphere and the Deccan Traps erupting in the Southern Hemisphere (though continental drift has since moved them to the north), the distribution of volcanic material could very well have been worldwide, says Courtillot.
But the Caped Crusader's dominance hasn't slowed Fox's "Ice Age: Continental Drift," which grossed $33.
The 35-year-old's latest role is more restrained than usual as he once again voices the possum Crash in Ice Age 4: Continental Drift.
People have had a hard time believing that continental drift is anything more than just a passive reaction to plate tectonics,' says Jordan.
The Warner tentpole had little impact on Fox's stellar animated pic "Ice Age: Continental Drift," which added a boffo $50.
THE BIG picture ICE AGE 4: CONTINENTAL DRIFT 3D (U, 92 mins) * AST becoming one of the biggest animated franchises, all your favourite Ice Age characters are back for another trip to ice land.
Directed with vim by Steve Martino and Michael Thurmeier, Continental Drift finds the computer-animated characters all at sea as they race to reunite the disjointed herd.

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