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    Home » Scientists uncover ‘Dark’ Oxygen production 13,000 feet ocean depth
    Science

    Scientists uncover ‘Dark’ Oxygen production 13,000 feet ocean depth

    The discovery indicates that oxygen can also be generated in the seafloor’s dark, lightless depths, potentially sustaining aerobic marine life in total darkness.
    News DeskBy News DeskJuly 23, 2024
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    DARK OXYGEN
    Image Credits: Northwestern University | Cropped by BH

    United States: An international research team, including chemist Franz Geiger from Northwestern University, has made a remarkable discovery: metallic minerals on the deep-ocean floor produce oxygen at depths of 13,000 feet. The unexpected finding challenges the long-standing belief that Earth’s oxygen is solely generated by photosynthetic organisms like plants and algae. Instead, it suggests that oxygen can also be produced in the seafloor’s dark, lightless depths, potentially supporting aerobic marine life in complete darkness.

    Mechanism for Oxygen production

    The study published in ‘Nature Geoscience’, reveals that polymetallic nodules or the natural mineral deposits found on the ocean floor are at the heart of this discovery. These nodules, which vary in size from tiny particles to about the size of a potato, contain critical metals like cobalt, nickel, copper, lithium, and manganese. These elements are also essential for battery production. The researchers discovered that these nodules produce oxygen through a process similar to seawater electrolysis, which involves extracting electrons from the oxygen atom in the water.

    The-Deep-ocean-Floor-Produces
    Polymetallic Nodule| Image Credits: Franz Geiger | Cropped by BH
    New perspective on Deep-Sea mining

    Dr. Andrew Sweetman from the Scottish Association for Marine Science (SAMS) initially detected oxygen production while sampling the Clarion-Clipperton Zone in the Pacific Ocean. After ruling out sensor malfunctions and verifying results with alternative methods, Sweetman and Geiger explored the possibility that the nodules acted as natural ‘geobatteries,’ generating the electricity needed to produce oxygen.

    “The data was unexpected and groundbreaking. We initially thought our equipment was malfunctioning. But when consistent results emerged, we realized we had discovered something truly novel,” remarked Sweetman.

    Impact on Mining and Environment

    The discovery has significant implications for deep-sea mining. Franz Geiger warns that while polymetallic nodules are critical for various technologies, their extraction could impact deep-sea ecosystems. Geiger emphasises the need to reconsider mining strategies to avoid depleting this newly discovered oxygen source. Historical data shows that areas mined in the 1980s still lack marine life, suggesting long-lasting environmental damage.

    deep-ocean-floor-produ
    Polymetallic Nodule in simulated sea water| Image Credits: Franz Geiger | Cropped by BH

    “The vast deposits of polymetallic nodules could meet global energy demands for decades. However, the environmental impact of past mining activities underscores the need for careful planning and conservation to protect these vital underwater ecosystems,” Geiger noted.

    The significant study not only opens a new pathway for understanding oxygen production but also raises important questions about the future of deep-sea resource extraction and its effects on marine life.

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    'Dark' Oxygen in Ocean Depth 'Dark' Oxygen production 13 000 ft ocean depth Franz Geiger New mechanism for Oxygen production Remarkable 'Dark' Oxygen discovery
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    The news/article published above has been sourced, compiled, and corroborated by a member of the Britain Herald News Desk Team. If you have any queries or complaints about the published material, please get in touch with us at BritainHerald@Gmail.Com

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