volcano malupet

• volcanoes


  elevated landform with an opening at the top called a crater
• crater


  known as depression,

  or the mouth of a volcano, this surrounds the vent
• parasitic cone


  smaller opening where volcanic materials also escape
• volcanic bombs

  mass of molten rock ejected during an eruption
• magma chamber

  large underground pool of liquid rock found beneath surface of the earth
• flank


  side of the volcano
• conduit


  nderground passage where magma travels through
• magma formation process?


  subduction
• subduction


  the older and denser plate moves under the plate which causes them to mae friction and when they heat up, they become dense and rise
• cinder/scoria cone


  ejects fluid lava due to high pressure, short lived fountain like eruptions
• cinder cone examples

  paricutin in mexico

  cerro negro in nicaragua
• shield volcanoes

  formed by loose fluid lava that flows over e/o, low and borad, lowest viscosity
• shield volc examples

  kilauea, mauna kea, mauna loa [all hawaii] (the most active and largest shield volcano)
• composite/stratovolcano


  highly viscous magma, steep pper slopes, relaxed lower slpes, small crater with large reservoir, most dangerous
• composite examples


  mayon, pinatubo, kilimanjaro, vesuvius, fujiyama
• caldera complex


  depression formed at summit of shield volcanoes, collpses over e/o
• lava dome


  mounds of lava formed after volcanic eruption, can form inside a volcanoes crater or the slopes
• submarine volcanoes


  volcanoes on ocean floor formed through collisions
• glacial


  volcanoes overlain by glaciers
• active


  exhibits volcanic activity in the last 10,000 years
• dormant


  no historical record of eruption in the past 10000 years
• inactive


  dormant, but eroded
• potentially active


  dormant and young
• extinct


  no magma supply, no record of extinction
• pacific ring of fire


  string of volcanoes and seismic activity around the pacific ocean
• 4 continents in pacringfire

  asia, australia, north south am
• 8 tect plates in pacringfire

  philippines

  cocos

  nazca

  pacific

  eurasian

  indoaustralian

  north american

  south american
• Active volcanoes in the Phil

  24
• Six most active volc

  Pinatubo, taal, mayon, hibokhibok, bulusan, kanlaon
• Magmatic eruption


  direct eruption of magma from earth's interior to atmosphere
• phreatomagmatic


  when magma comes into contact w water
• hawaiian

  gentle lava flows, low viscosity, low gas
• hawaiian examples

  kilauea, mauna loa, kanlaon
• strombolian

  rhythmic burst, moderate ash, moderate viscosity, moderately explosive
• strombolian examples


  stromboli, mayon
• vulcanian


  steepsided cones, powerful explosions, significant ash, more viscouus, ashfalll, pyroclastic flow, lahar
• vulcanian example


  vesuvius, taal
• plinian

  towering ash columns, widespread ash, climate impacts, high viscosity, highly explosive, ash cloud, pyroclastic flow, lahar, tsunami
• plinian examples

  mt st helens, pinatubo
• icelandic eruption

  fissure eruptions, subglacial eruptions, low viscous, effusive, lava flows, volcanic gases