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Deep sea mining is the extraction of minerals from the seabed of the deep sea. The main ores of commercial interest are polymetallic nodules , which are found at depths of 4–6 km (2.5–3.7 mi) primarily on the abyssal plain .
Very little is known about deep sea ecosystems or the potential impacts of deep-sea mining. Polymetallic nodule fields are hotspots of abundance and diversity for a highly vulnerable abyssal fauna, much of which lives attached to nodules or in the sediment immediately beneath it.
Model of seabed mining technology. Seabed mining, also known as Seafloor mining [1] is the recovery of minerals from the seabed by techniques of underwater mining. The concept includes mining at shallow depths on the continental shelf and deep-sea mining at greater depths associated with tectonic activity, hydrothermal vents and the abyssal plains.
Deep sea mining involves removing mineral deposits and metals from the ocean’s seabed. ... taking deposit-rich polymetallic nodules off the ocean floor, mining massive seafloor sulphide deposits ...
The production of oxygen at the seafloor by polymetallic nodules is a new ecosystem function that needs to be considered when assessing the impact of deep-sea mining.
The International Seabed Authority is working to set regulations for deep-sea mining as companies engaged in the clean energy transition clamor for more minerals. The seafloor, especially in parts ...
The CCZ is regularly considered for deep-sea mining due to the abundant presence of manganese nodules. The CCZ extends around 4,500 miles (7,240 km) East to West [ 4 ] and spans approximately 4,500,000 square kilometres (1,700,000 sq mi). [ 5 ]
A part of the Pacific Ocean earmarked for deep-sea mining is home to a surprising variety of life, images from a recent voyage to the Clarion-Clipperton Zone show. ... The largest known nodules ...