MIT Team Solves Mystery of the Pacific "Ring of Fire&qu

Shirleypal · Post by **Shirleypal** » 06-09-2009 04:19 PM

June 08, 2009
MIT Team Solves Mystery of the Pacific "Ring of Fire" (VIDEO)
Geologists have been trying for years to discover the forces that give rise to the kind of volcanoes that form the so-called "ring of fire" around the Pacific Ocean that form an arc for 40,000 kilometers in a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and or plate movements. The "Ring of Fire" has 452 volcanoes and is home to over 75% of the world's active and dormant volcanoes, which are produced when one of the tectonic plates that make up planet's crust plunges beneath another plate, a process called subduction.

Understanding the process that produces arc volcanoes is important because, among other things, most of the world's major deposits of such metals as silver, copper and molybdenum occur in these formations.

Video

Post by **Linnea** » 06-09-2009 07:48 PM

Something wrong with the link, I think. Either that or my pc is acting strangely.

?

Shirleypal · Post by **Shirleypal** » 06-09-2009 07:55 PM

Fixed it.....don't know what happened.