New Dark Oxygen Discovery May Disturb You | Peter Schroedl

Event Horizon منتشر شده در تاریخ 1403/07/12

2 هزار بار بازدید - دیروز - A new study reveals unexpected

A new study reveals unexpected "dark oxygen" production at the abyssal seafloor, where oxygen levels tripled over two days near polymetallic nodules in the Pacific Ocean. Researchers suggest that seawater electrolysis, driven by high voltage potentials on nodule surfaces, may be responsible for this unusual oxygen increase. An, S.-U., Baek, J.-W., Kim, S.-H., Baek, H.-M., Lee, J. S., Kim, K.-T., Kim, K. H., Hyeong, K., Chi, S.-B., & Park, C. H. (2024). Regional differences in sediment oxygen uptake rates in polymetallic nodule and co-rich polymetallic crust mining areas of the Pacific Ocean. *Deep Sea Research Part I: Oceanographic Research Papers*, 207, 104295. doi.org/10.1016/j.dsr.2024.104295 Byrne, P. K., Dombard, A. J., Elder, C. M., Hauck, I. I., Daswani, M. M., Regensburger, P. V., & Vance, S. D. (2020). White Paper Towards a Fuller Understanding of Icy Satellite Seafloors, Interiors, and Habitability (arXiv:2007.09728). *arXiv*. doi.org/10.48550/arXiv.2007.09728 Cho, H., Kim, K.-H., Son, S. K., & Hyun, J.-H. (2018). Fine-scale Microbial Communities Associated with Manganese Nodules in Deep-sea Sediment of the Korea Deep Ocean Study Area in the Northeast Equatorial Pacific. *Ocean Science Journal*, 53(2), 337–353. doi.org/10.1007/s12601-018-0032-0 Crockett, W. W., Shaw, J. O., Simpson, C., & Kempes, C. P. (2024). Physical constraints during Snowball Earth drive the evolution of multicellularity. *Proceedings of the Royal Society B: Biological Sciences*, 291(2025), 20232767. doi.org/10.1098/rspb.2023.2767 Davila, A. F., & Eigenbrode, J. L. (2024). Enceladus: Astrobiology Revisited. *Journal of Geophysical Research: Biogeosciences*, 129(5), e2023JG007677. doi.org/10.1029/2023JG007677 Fig. 1: Oxygen concentrations in μmol l−1 measured by calibrated O2 optodes through time in h in the different benthic chamber incubations. | Nature Geoscience. (n.d.). Retrieved September 30, 2024, from www.nature.com/articles/s41561-024-01480-8/figures… Glein, C. R., & Waite, J. H. (2020). The Carbonate Geochemistry of Enceladus’ Ocean. *Geophysical Research Letters*, 47(3), e2019GL085885. doi.org/10.1029/2019GL085885 Glover, A., Dahlgren, T., Taboada, S., Paterson, G., Wiklund, H., Waeschenbach, A., Cobley, A., Martínez, P., Kaiser, S., Schnurr, S., Khodami, S., Raschka, U., Kersken, D., Stuckas, H., Menot, L., Bonifacio, P., Vanreusel, A., Macheriotou, L., Cunha, M., … Brager, S. (2016). The London Workshop on the Biogeography and Connectivity of the Clarion-Clipperton Zone. *Research Ideas and Outcomes*, 2, e10528. doi.org/10.3897/rio.2.e10528 Hand, K. P., Phillips, C. B., Murray, A., Garvin, J. B., Maize, E. H., Gibbs, R. G., Reeves, G., Martin, A. M. S., Tan-Wang, G. H., Krajewski, J., Hurst, K., Crum, R., Kennedy, B. A., McElrath, T. P., Gallon, J. C., Sabahi, D., Thurman, S. W., Goldstein, B., Estabrook, P., … Wasiolek, M. (2022). Science Goals and Mission Architecture of the Europa Lander Mission Concept. *The Planetary Science Journal*, 3(1), 22. doi.org/10.3847/PSJ/ac4493 Modeling vertical excursions of the redox boundary in sediments: Application to deep basins of the Arctic Ocean. (n.d.). Retrieved October 1, 2024, from aslopubs.onlinelibrary.wiley.com/doi/epdf/10.4319/… Sweetman, A. K., Smith, A. J., de Jonge, D. S. W., Hahn, T., Schroedl, P., Silverstein, M., Andrade, C., Edwards, R. L., Lough, A. J. M., Woulds, C., Homoky, W. B., Koschinsky, A., Fuchs, S., Kuhn, T., Geiger, F., & Marlow, J. J. (2024). Evidence of dark oxygen production at the abyssal seafloor. *Nature Geoscience*, 17(8), 737–739. doi.org/10.1038/s41561-024-01480-8 Volz, J. B., Mogollón, J. M., Geibert, W., Arbizu, P. M., Koschinsky, A., & Kasten, S. (2018). Natural spatial variability of depositional conditions, biogeochemical processes and element fluxes in sediments of the eastern Clarion-Clipperton Zone, Pacific Ocean. *Deep Sea Research Part I: Oceanographic Research Papers*, 140, 159–172. doi.org/10.1016/j.dsr.2018.08.006 YouTube Membership: youtube.comhttps://www.seevid.ir/fa/result?ytch=UCz3qvETKooktNgCvvheuQDw/join Podcast: anchor.fm/john-michael-godier/subscribe Apple: apple.co/3CS7rjT More JMG youtube.com/c/JohnMichaelGodier Want to support the channel? Patreon: www.patreon.com/EventHorizonShow Follow us at other places! @JMGEventHorizon Music: stellardrone.bandcamp.com/ migueljohnson.bandcamp.com/ leerosevere.bandcamp.com/ aeriumambient.bandcamp.com/ FOOTAGE: NASA ESA/Hubble ESO - M.Kornmesser ESO - L.Calcada ESO - Jose Francisco Salgado (josefrancisco.org) NAOJ University of Warwick Goddard Visualization Studio Langley Research Center Pixabay

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