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A recent study hypothesizes that the nodules are a source of "dark oxygen", oxygen produced without light, which provides the seafloor in the deep ocean with oxygen. [36] However, this study contrasts with many other studies conducted over decades in the deep sea that did not detect oxygen production - and in fact showed only oxygen consumption.
The region is being explored for the deep-sea mining of rare metals contained in the rock nodules. ... the production of oxygen by the metallic nodules and whether hydrogen was used as an energy ...
Experiments in their lab - with nodules that the team collected submerged in beakers of seawater - led the scientists to conclude that the metallic lumps were making oxygen out of seawater.
Scientists discovered "dark oxygen" produced by deep-sea polymetallic nodules deep below sea level, redefining our understanding of ocean and early Earth life. 4,000 Meters Below Sea Level ...
Dark oxygen production refers to the generation of molecular oxygen (O 2) through processes that do not involve light-dependent oxygenic photosynthesis.The name therefore uses a different sense of 'dark' than that used in the phrase "biological dark matter" (for example) which indicates obscurity to scientific assessment rather than the photometric meaning.
Deep-sea mining focuses on three primary sources of minerals: polymetallic nodules, The IEA (2022) [165] projects that the clean energy sector will increasingly dominate the demand for metals like copper, nickel, cobalt, rare-earth elements, and lithium. This surge is expected to accelerate over the next two decades, with lithium demand growing ...
The discovery that abyssal, or deep-sea, nodules are producing oxygen is “an amazing and unexpected finding,” said Daniel Jones, a professor and head of ocean biogeosciences at the National ...
They have found that manganese nodules on the deep sea floor produce free oxygen from water molecules. [ 11 ] The manganese nodules act as a kind of battery as they contain different metals, and they release oxygen into the environment.