Underwater Gold Mine | Science - AAAS
1999年2月12日 · Geologists have struck gold near an ancient collapsed volcano, some 400 kilometers south of Tokyo. But prospectors better know how to use a submersible, because this deposit is under nearly 1300 meters of water.
Seabed-Mining Robots Will Dig for Gold in Hydrothermal Vents
2015年12月22日 · Dredge pumps built into these machines will push the smashed ore back to a central pile on the seafloor, where a third Nautilus robot will feed a slurry of crushed rock and water up a pipe ...
Will Deep-sea Mining Yield an Underwater Gold Rush? - National …
2013年2月3日 · These underwater geysers spit out fluids with temperatures exceeding 600ºC. And when those fluids hit the icy seawater, minerals precipitate out, falling to the ocean floor. The deposits can...
Companies dig the deepest depths to mine valuable metals from …
2024年9月17日 · Underwater mapping experts monitor what's already been excavated and where, while also planning the next day's digging. These waters hardly seem to challenge the team from Magellan, since it ...
Treasures beneath the ocean floor? Seawater plays role in gold …
2024年7月3日 · "In our new study, we discovered that sodium ions in seawater are what cause gold nanoparticles to clump together, acting like the acid in souring milk and eventually forming gold veins," said...
Gold Miners Dig Deep — To The Ocean Floor - NPR
2012年4月2日 · A robotic arm breaks off a chunk of mineral-rich rock deep underwater. Nautilus Minerals of Australia hopes to develop and expand undersea mining by extracting copper, gold, silver and zinc...
There Is Gold in Seawater, But We Can’t Get at It
2017年3月23日 · According to the National Ocean Service, our oceans hold some 20 million tons* of gold, suspended in normal seawater. But this gold is spread throughout the normal mineral content of seawater...
Inside the hunt for a million-dollar haul of ocean gold - BBC
In 1860, 100 miles (161km) off this shore, one of the world’s biggest steamer ships slowly began to fill with water. By sheer luck, the SS Connaught’s passengers were saved, but its haul – millions...
The Ocean Could Be the New Gold Rush - National Geographic
2016年7月13日 · There is enough gold on the seafloor to give every person alive nine pounds, scientists estimate. That would be worth about $150 trillion, or $21,000 a person.
‘It’s bloody El Dorado’: Undersea riches to be reaped by the few
Thirty years ago, Australian geologist Ray Binns threw a camera over the side of his science ship and hit a “goldmine” on the bottom of the sea. One kilometre down, his camera had slammed into a hydrothermal vent chimney: a tall spire of copper and gold reaching up …