AWI researchers demonstrate high natural radioactivity of manganese nodules
Large areas of the ocean floor are covered with polymetallic nodules and crusts. The potato-sized manganese nodules can be found in all oceans, especially in the Pacific Ocean, at water depths between 4,000 and 6,000 metres. Formed over millions of years, they contain valuable metals like copper, nickel, cobalt and rare-earth elements - in other words, a range of elements required for the manufa