Volcanoes

• Volcanoes


  Rokanoes(could u abode of dev That's probably why racha songs my hends and
• Volcanoes


  • Mainly occur on or near plate boundaries
  • Don't occur at cenerate or callakon maghs as re new crust is kared at these margin
  • At coactive wri Magma rises to 1 the space lek by pla moving apart because fun the wounding crustal rock
  • If the margin is underwates these can form ocean ridges or lism of single vekanan form paralel to the plate boundary
  • If the margin is on land, rift valleys can be formed as the plates pull apart
  • Magma is also able to break through the surface bet create velcanoes
• Volcanoes


  • Heimany-a volcanic island of the Icelandic mainland R's famed by the divergence of the North American and Eurasian plates
  • The subduction of the Nazca plate underneath the South Americas plate has formed the Andes mountain range, whe there are many volcanoes, including the active Nevado del Raiz
• Volcanoes


  • Some are found in the middle of plates
  • The lenget incantation of valami fund and the elig of the Pace pits gringo dame the face Ring of Fire
• Mantle plumes


  • Vertical columns of extremely hot magma that rise up from the mantle
  • Thought to be caused by radioactive decay in the asthenosphene
  • Melt and weaken the undemeath of the crust, creating a body of less dense magrea, which forces its way through to form volcanoes
• Hotspot volcanoes


  • Volcanoes form above mande plames
  • The mantle plume nemaire stationary over time, but the crust moves above it
  • Progressively newer volcanoes are famed in new locations as the crust moves
  • A chain of volcanoes or a volcanic island are may form, e.g. the islands that make up Hawaii
• Italy sits on a point where the Burion and the Alican plates are colding, resulting in Italy having active vekan
• The Manaian island arc is caused by mantle planes
• Mast volcanic eptions car rear contractive and deste plek tag
• Example: The exp Ο Basa A 5 Ex B
• The magma chamber is the location where molten rock accumulates.
• Magma chambers are found beneath volcanic mountains, but they can also be located deep within the Earth's mantle or crust.
• Volcanism occurs when magma rises to the surface through fissures (cracks) in the Earth's crust.