Deep sea mining is a relatively new mineral retrieval process that takes place on the ocean floor. Ocean mining sites are usually around large areas of polymetallic nodules or active and extinct hydrothermal vents at about 1,400 – 3,700 m below the ocean’s surface. The vents create sulfide deposits, which contain valuable metals such as silver, gold, copper, manganese, cobalt, and zinc. The deposits are mined using either hydraulic pumps or bucket systems that take ore to the surface to be processed. As with all mining operations, deep sea mining raises questions about potential environmental impact on surrounding areas. Environmental advocacy groups such as Greenpeace and the Deep sea Mining Campaign have argued that seabed mining should not be permitted in most of the world's oceans because of the potential for damage to deepsea ecosystems and pollution by heavy metal laden plumes.
In the mid 1960s the prospect of deep-sea mining was brought up by the publication of J. L. Mero's Mineral Resources of the Sea. The book claimed that nearly limitless supplies of cobalt, nickel and other
metals could be found throughout the planet's oceans. Mero stated that these metals occurred in deposits of manganese nodules, which appear as lumps of compressed sediment on the sea floor at
depths of about 5,000 m. Some nations including France, Germany and the United States sent out research vessels in search of nodule deposits. Initial estimates of deep sea mining viability turned out to be much exaggerated. This overestimate, coupled with depressed metal prices, led to the near abandonment of nodule mining by 1982. From the 1960s to 1984 an estimated US $650 million had
been spent on the venture, with little to no return.
According to the plan, Japan intends to research and develop hypersonic weapons, improved high-speed glide bombs, improved Type 03 surface-to-air missiles, target observation munitions, unmanned underwater vehicles (UUV) and sea mines ... Japan’s acquisition of sea mines may thus be an effort to plug this capability gap.
While the Istanbul Strait was monitored with electro-optical surveillance systems, the UnderwaterDefense or SAS teams were put in a high readiness state to destroy mines in case of detection ... Since the beginning of the Ukraine-Russia war, Turkish teams have destroyed four mines.
“The sea mine is an incredibly flexible weapon system, offering both offensive and defensive options to government,” Mapson adds ... Apart from defensive mining, Mapson mentions that unmanned underwater vehicles (UUV) can perform offensive mining operations in enemy ports and waterways.
Even before the fighting began, as Russian forces massed on the border, Britain was sending the first of thousands of modern Nlaw anti-tank missiles ... In addition, Britain has also gifted Sea King search and rescue helicopters while training dozens of Ukrainian sailors to use unmanned underwater drones to clear mines laid by the Russians. .
“A modern sea mining capability is a significant deterrent to potential aggressors,” the statement said ... “While mines might ... “In addition, smart sea mines could be deployed at Australia’s major ports to deter submarines and unmanned underwater vehicles,” he said in an email Monday.
The central Japan town of Eiheiji, known for its ancient Zen Buddhist temple in Fukui Prefecture, is set to be the first place in the country to adopt a new type of autonomous self-driving vehicle, hoping to pioneer investment in what could become an important future technology ... (Kyodo) ... Japan to develop underwater drones to lay, remove sea mines.
The vessel is still loaded with 1.14 million barrels of oil ... At this point, the most expeditious and likely effective approach – especially in light of concerns around underwater mines in the vicinity – would be for the UN Security Council to recognize that, for the peace and security of the world, it needs to take action ... Dr ... ....
This year, the Navy sought to end one of those marine mammals' most important missions — hunting for and neutralizing mines buried in the seabed — and use sophisticated underwater vehicles and sensors instead ... The Navy's mine-countermeasures force continues to struggle ...
Data shows almost all the big public crypto companies have underperformed Bitcoin this year, with the mining firms taking an especially hard hit. Most Public Mining Companies Saw Drawdowns Of 90% Or More In 2022 ... But why did the mining firms perform especially poorly? The explanation behind that is multifold.
Bitcoin Mining Hashrate Has Shown Wild Fluctuations Recently... This drawdown was initially caused by a 3% increase in the mining difficulty (which caused some miners who were already on the verge of going underwater to ditch the network), but the fall has extended in the last few days due to the storm.
It plans to enter the manufacture of customised 100% indigenous drones and offer land and underwater surveying services, which include powerlines and utilities, oil and gas infrastructure, mines and quarries, energy and renewables, roads and highways, urban and rural planning, ...
The UUV sub-drone prototype was unveiled by Australia and is expected to play a critical role in the Indo-Pacific region because of its underwater surveillance and mine warfare capabilities ... Such an addition to the navel capabilities of Australia will prove beneficial in case proliferation of sea mines in the Indo-Pacific Region.