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Missing Boy's Father Arrested on Suspicion of Murder

Expedition Probes Trench’s Deepest Secrets

Beijing—The Mariana Trench “is a little crazy,” Jian Lin says. The scythe-shaped cleft in the western Pacific sea floor, 2550 kilometers long, plunges nearly 11 kilometers, deeper than any other place in the oceans. But what wows Lin, a marine geophysicist at the Woods Hole Oceanographic Institution in Massachusetts, is the zany topography. The trench marks a subduction zone, where one slab of crust slides beneath another.
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