Formations of volcano

• Cinder cone are also called scoria
• Cinder cone is the simplest type of volcano
• Cinder cone Made from basalt, gas charge lava particles.

  Smaller than shield
• Cinder cone is Found in the flank and calderas hawaii shield volcano

  Height: 250meters. Diameter: 500meters
• Cinder cone majority found in western north america
• Composite volcano is also called strato volcano
• Characteristics of a stratovolcano:

  • Made up of alternating layers of pyroclastic elements
  • Acidic and high-silica content
  • Hardened flows
  • Conduit lava system, clustered set of vent, Dikes
  • Composed of andesite, tephra
  • Example: Mt. Mayon in Albay
• Composite volcano can grow up to 6,960 meters(22,835ft)
• The slopes of shield volcanoes are usually between 2° and 10°
• Some of the larges volcanoes in the world are listed under shield volcano
• Volcanic dones are also called lava done
• Super volcano are described to produce the largest eruption on earth
• Volcanic explosivity indes (VEI)
• Submarine volcanoes is created when magma erupts in the underwater fissures of earth
• Subglacial volcano is also called glacio volcano