Word: crustes
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...fault zone apparently also lies within an even larger geological structure discovered previously during magnetic and gravitational surveys: a great underground rift in the earth's crust marked by the subsidence of rock over an area at least 190 km (120 miles) long and 50 km (30 miles) wide. Scientists believe this rift was created several hundred million years ago, when the North American plate began to split and molten rock from the interior welled toward the surface. Though the breakup halted-for reasons as inexplicable as the original movement-a weak area remains in the form...
...swallow their pride and return to the "Cambridge Convention" label adopted years ago. Hiding the CCA name probably won't mystify supporters, but it may calm those in other parts of the city who support the group's position ideologically but can't bring themselves to back the upper crust...
Instead, he sticks to the original as a toddler cleaves to its mother. When he ventures to emulate the style of another production, it is the oft-shown movies--itself remarkably faithful to the script. In the film version, hundreds of upper-crust stiffs assemble for the Ascot opening day races and stand at attention in overly starched collars without flexing a facial muscle...
Then it moved on to Ganymede, photographing a tortured, cratered sphere whose cracked and faulted icy crust may indicate moonquakes. It took a closer look at Europa, which revealed an intricate lattice work of veinlike lines that may represent shallow fissures in an icy sea. Finally, Voyager 2 shifted its electronic gaze to lo, the innermost and most spectacular of the Galilean moons. Four months ago, Voyager 1 had spotted eight volcanoes in the midst of eruption, the first time such activity was observed other than on earth. Last week its successor photographed six of the same eruptions, suggesting...
...influence climate, and possibly allow more cosmic radiation to assail the earth's atmosphere. One layer, only a centimeter thick and tracing back 65 million years, showed a sharp excess of iridium, an element 1,000 times more plentiful in otherworldly matter than in the earth's crust. The "spike" in the readings made a sobering point. "It's the first experimental evidence that something quite extraordinary happened then," says Physics Nobel Laureate Luis Alvarez, who gave his son a helping hand. A supernova that could have wiped out the dinosaurs? "A very small probability," says Alvarez...