Far below the surface of the Pacific, a volcanic landscape south of Japan has revealed an extraordinary concentration of hidden gold unlike anything documented before. The discovery comes from an active hydrothermal field where superheated, mineral-rich fluids continue to build towering chimney structures and dense sulphide deposits on the seabed. While gold has long been known to occur around underwater hydrothermal vents, the latest analysis points to concentrations that exceed previous records, with much of the precious metal concealed inside ordinary-looking minerals rather than appearing as visible flakes or veins.
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