Archive | Deep Sea Mining

https://www.theguardian.com/

The “new global gold rush” over deep-sea mining holds the same potential pitfalls as previous resource scrambles, with environmental and social impacts ignored and the rights of Indigenous people marginalised, a paper in the Harvard Law Review has warned.

A framework for deep-sea mining – where polymetallic nodules or hydrothermal vents are mined by machine – was first articulated in the 1960s, on an idea that the seabed floor beyond national jurisdiction was a “common heritage of mankind”.

But exploration has gathered momentum in the past three years, with licences granted off Papua New Guinea’s coastlines, and successful mining off Japan late last year. The International Seabed Authority, which is drawing up a draft mining code, has issued 29 exploration contracts for undersea mining in international waters beyond any national jurisdiction. Continue Reading →

http://www.dw.com/en/

Our growing demand for resources has prompted companies to turn to mining in the depths of the oceans. With help from robots, a team of German scientists is racing to map the potential environmental damage.

The Earth’s oceans hide vast amounts of valuable minerals and metals, and as some onshore deposits run low, mining companies are looking for ways to make deep sea mining both technologically possible and profitable.

This is partly driven by the need for so-called rare earth metals to produce the magnets, batteries and microchips driving our gadgets, electric cars and wind turbines. Continue Reading →

http://www.oedigital.com/

Many are looking to a new resource, deep sea minerals, thanks to growth in demand from emerging economies and the development of new technologies that require increased supply of metals such as copper.

While interest in mining metals from the deeps has been ongoing since the 1960s, activity has remained low, due to low metal prices and the challenges of operating in deep sea environments. This activity is also the focus of strong local and environmental opposition.

Slowly, however, the pieces have been falling into place to permit this activity. In 1982, the United Nations Convention on the Law of the Sea (UNCLOS) established the International Seabed Authority (ISA), based in Jamaica, to organize and regulate mineral-related activities in seabed areas beyond the limits of national jurisdictions. Continue Reading →

https://www.theguardian.com/

Mining the deep ocean floor for valuable metals is both inevitable and vital, according to the scientists, engineers and industrialists exploring the world’s newest mining frontier.

The special metals found in rich deposits there are critical for smart electronics and crucial green technologies, such as solar power and electric cars. But as the world’s population rises, demand is now outstripping the production from mines on land for some important elements.

Those leading the global rush to place giant mining machines thousands of metres below the sea surface say the extraordinary richness of the underwater ores mean the environmental impacts will be far lower than on land. But critics say exotic and little-known ecosystems in the deep oceans could be destroyed and must be protected. Continue Reading →

http://www.bbc.com/

British scientists exploring an underwater mountain in the Atlantic Ocean have discovered a treasure trove of rare minerals. Their investigation of a seamount more than 500km (300 miles) from the Canary Islands has revealed a crust of “astonishingly rich” rock.

Samples brought back to the surface contain the scarce substance tellurium in concentrations 50,000 times higher than in deposits on land. Tellurium is used in a type of advanced solar panel, so the discovery raises a difficult question about whether the push for renewable energy may encourage mining of the seabed.

The rocks also contain what are called rare earth elements that are used in wind turbines and electronics. Known as Tropic Seamount, the mountain stands about 3,000m tall – about the size of one of the middle-ranging Alpine summits – with a large plateau at its top, lying about 1,000m below the ocean surface. Continue Reading →

http://www.miningweekly.com/

With the current known mineral deposits on land increasingly being depleted globally, necessitating greater exploration, interest in deep-sea minerals is growing as mining companies look for future sources to exploit.

“The ocean is where future resources exist,” India Council of Scientific and Industrial Research National Institute of Oceanography chief scientist Dr Rahul Sharma said at South Africa’s Council for Geoscience Annual Conference 2017, earlier this month.

Sharma highlighted that minerals from the deep seafloor, such as polymetallic nodules, ferromanganese crusts and hydrothermal sulphides, are potential sources of millions of tonnes of metals such as copper, nickel, cobalt, manganese and iron. Continue Reading →