Jump to content


Science Daily: Deepwater mining in Norway

  • Please log in to reply
No replies to this topic

Forum Admin

Forum Admin

    Frequent Forum User

  • Administrators
  • 1357 posts
The mid-ocean ridges where tectonic plates meet in the Atlantic and the Pacific Oceans are seething with volcanic activity. The most active areas are deep under water, several thousand metres down. Ocean water penetrates several kilometres down towards the centre of the Earth where the crust is fractured. Geologists call this hydrothermal activity. Liquid magma heats the water to about 400 °C before the water squirts back out again as an underwater geyser. The ocean water draws minerals and metals out of the Earth’s crust and carries these back up to the seabed. Gold, silver, copper, cobalt, zinc, and lead are all deposited when the hot springs meet the cold ocean water.

View the full article