This handout photograph taken on April 17, 2016, and released by The Japan Agency for Marine-Earth Science and Technology (JAMSTEC) on August 26, 2016 shows manganese nodules dense area discovered at some 5,500 meters deep in the exclusive economic zone of Japan, around Minamitorishima located some 1,850 kilometers south of Tokyo. RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / JAMSTEC" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS / AFP PHOTO / JAMSTEC / HO / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / JAMSTEC" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS HO/AFP/Getty Images
