Large Kuroko-type sulfide deposit found off Japan

One of the world's largest Kuroko-type sulfide deposits has been discovered on the floor of a caldera about 1,400 meters under the sea 400 kilometers south of Tokyo, the Agency of Industrial Science and Technology's Geological Survey announced Feb. 11. More than one hundred chimney-like structures made of chilled and settled minerals were observed within a radius of 400 meters. The agency released photos of the ''Sunrise Deposit'' taken by the research subversible Shinkai 2000. ==Kyodo

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