It was previously thought that only photosynthetic organisms such as plants and algae generate Earth’s oxygen.
The Scottish Association for Marine Science has suggested metals on the deep-ocean floor produce “dark oxygen” 13,000 feet below the surface.
Sweetman said: “For aerobic life to begin on the planet, there had to be oxygen, and our understanding has been that Earth’s oxygen supply began with photosynthetic organisms. “We would come home and recalibrate the sensors, but, over the course of 10 years, these strange oxygen readings kept showing up.”Prof Sweetman said: “When both methods came back with the same result, we knew we were onto something ground-breaking and unthought-of.”
Co-author Franz Geiger, of Northwestern University, US, said: “The polymetallic nodules that produce this oxygen contain metals such as cobalt, nickel, copper, lithium and manganese — which are all critical elements used in batteries. We also treat our community members to special offers, promotions, and adverts from us and our partners. If you don’t like our community, you can check out any time you like.If you’re curious, you can read our Privacy Notice.
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