Marine bugs have a flair for deep-sea mining

日期:2019-04-04 01:09:01 作者:堵墉 阅读:

By Lynn Dicks FOR decades, mining companies eyed with interest the fist-sized lumps of mineral littering the floor of the world’s deep oceans. Made largely of manganese dioxide and other oxides, these mysterious nodules harbour valuable metals like copper, nickel and cobalt. The cost of mining on the seabed at least 4 kilometres down makes the prospect unattractive to most companies,