Research Status of Deep-Sea Polymetallic Nodule Collection Technology
Journal of Marine Science and EngineeringThe bottom of the ocean is rich in mineral resources, and deep-sea mining has been a research hotspot in recent years. As a key part of deep-sea mining operation, polymetallic nodule collection technology has been researched in many countries around the ...
Boying Liu +5 more
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Alpha radiation from polymetallic nodules and potential health risks from deep-sea mining [PDF]
Scientific Reports, 2023 In search for critical elements, polymetallic nodules at the deep abyssal seafloor are targeted for mining operations. Nodules efficiently scavenge and retain several naturally occurring uranium-series radioisotopes, which predominantly emit alpha ...
Jessica B. Volz +4 more
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No link between polymetallic nodules and anomalous oxygen concentration increases in benthic experiments from the Clarion Clipperton Zone [version 2; peer review: 2 approved, 1 approved with reservations, 1 not approved] [PDF]
F1000Research* Background Polymetallic nodules in the deep sea of the Clarion Clipperton zone (CCZ) have been implicated in the abiotic production of oxygen during benthic chamber respirometer experiments.
Alexander P. Webber +5 more
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Estimations of effective doses received from naturally occurring radioactivity in polymetallic nodules from the deep sea [PDF]
Scientific ReportsThe strategic importance of metals found in deep-sea polymetallic nodules has spurred a surge in interest for their exploitation. However, nodules are known to incorporate radionuclides during their growth, so that any industrial processing would involve
Thomas Lüttke +11 more
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Image segmentation and coverage estimation of deep-sea polymetallic nodules based on lightweight deep learning model [PDF]
Scientific ReportsDeep-sea polymetallic nodules, abundant in critical metal elements, are a vital strategic mineral resource. Accordingly, the prompt, accurate, and high-speed acquisition of parameters and distribution data for these nodules is crucial for the effective ...
Yue Hao +7 more
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Unveiling the significance of prokaryotic composition from ferromanganese crusts regarding the interlink between cobalt and vitamin B12 in deep-sea ecosystems [PDF]
Frontiers in MicrobiologyThe intricate relationship between prokaryotic vitamin B12 (cobalamin) producers and metazoans in deep-sea ecosystems, particularly within ferromanganese crusts and polymetallic nodules, is critical for understanding oceanic biogeochemical cycling of ...
Lilia Montoya, Elva Escobar-Briones
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Thorium-234 as a tracer for deep-sea mining sediment plume deposition [PDF]
Nature CommunicationsDeep-sea mining for polymetallic nodules is currently exploratory, but commercial-scale operations require indicators of environmental change to support regulatory thresholds and inform adaptive management.
Bryan J. O’Malley +7 more
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Journal of Marine Science and Engineering, 2023 Polymetallic nodules and polymetallic sulfides are currently the major mineral resources found on the seabed. The motivation behind deep-sea mining arises from the pursuit of valuable metals, driven by both economic and geopolitical considerations ...
Xuya Lv +4 more
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Studies on Analysis Conditions of Specific Surface Area of Polymetallic Nodules
Yankuang ceshi, 2021 BACKGROUND Polymetallic nodules are predominant in deep sea sedimentary mineral resources due to the enrichment of many critical metals. Polymetallic nodules are loose and porous, which is the critical material feature that contributes the adsorption of ...
LI Hao-nan +4 more
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Process Mineralogy of Mud Fraction in Deep Sea Rare Earth
Kuangchan zonghe liyong, 2023 This is an essay in the field of process mineralogy. Deep sea rare earths are the fourth deep-sea mineral resource after polymetallic nodules, cobalt rich crusts and polymetallic sulphides.
Xiaoyu Li +5 more
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