Latest Volcanic arc Stories
Scientists believe they have uncovered evidence that a new subduction zone may one day close the Atlantic Ocean, according to an article in EARTH Magazine.
Scientists interested in the construction of the rock layers immediately under the Earth’s crust, the lithosphere and asthenosphere, have new tools to help analyze these layers and further understand plate tectonics.
For decades, geologists have been puzzled by the mechanisms that give rise to the kind of volcanoes that form the so-called â€œring of fireâ€ around the Pacific Ocean.
New research by geophysicists suggests that plate tectonic motions have occasionally stopped in Earthâ€™s geologic history.
The July-August issue of the GEOLOGICAL SOCIETY OF AMERICA BULLETIN includes several newsworthy items. Topics include: a possible 3-10-year warning mechanism for North American west-coast earthquakes; discovery of a 4600-year history of tsunamis on the Oregon coast; and present-day tilting of the Great Lakes region.
The Pacific Ring of Fire, or Ring of Fire for short, is an area where a large number of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. In a 25,000 mile horseshoe shape, it’s associated with an almost continuous series of oceanic trenches, volcanic belts, volcanic arcs and/or plate movement. The Ring of Fire contains 452 volcanoes and is home to over 75 percent of the world’s active and dormant volcanoes. It’s sometimes called the circum-Pacific belt or the...