October 11, 2018
Ferromanganese nodules/crusts and seafloor massive sulfides are a unique feature of the deep-ocean seafloor. These deep-ocean mineral deposits are windows into Earth's processes, revealing clues to the evolution of seawater and ancient ore-forming processes. They also represent significant metal resources that could contribute future raw materials supply. The articles in this issue explore the formation of deep-ocean mineral deposits; their inherent scientific value; and the geological, technical, environmental and economic challenges, as well as regulatory and philosophical questions, of extracting such mineral resources.
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