Volcanic Emissions PDF

EXPLORING VOLCANIC EMISSIONS Volcanoes by nature releases emissions of different chemicals and materials from eruptions thanks to the extreme pressure that collects and compounds from gases and magma within. With that said, we will tackle: what emissions are...

EXPLORING VOLCANIC EMISSIONS Volcanoes by nature releases emissions of different chemicals and materials from eruptions thanks to the extreme pressure that collects and compounds from gases and magma within. With that said, we will tackle: what emissions are the different types of emissions their composition the lasting effects of volcanic emissions upon the world EMISSIONS ARE MATERIALS, GASES AND MOLTEN ROCK EXPELLED IN EXPLOSIONS THANKS TO CHEMICAL REACTIONS AND EXTREME PRESSURE CHANGES. EMISSIONS CAN BE CLASSIFIED INTO GASES, SOLIDS AND LIQUIDS.  WATER VAPOR (H20) VOLCANIC GASES Most abundant volcanic gas, making up 70- 90% of total emissions. It is responsible for cloud formations and volcanic rainfall. These gases are formed thanks CARBON DIOXIDE (CO2) to the material of the molten Greenhouse gases which accumulate in the air rocks and different minerals and can cause global cooling and suffocation. absorbed into magma, then SULFUR DIOXIDE (SO2) released during eruptions into the Reacts with water vapor to form sulfuric acid, atmosphere as pressure causing acid rain. decreases. HYDROGEN SULFIDE (H2S) More commonly found in hot springs, has a distinct “rotten egg” smell.  VOLCANIC SOLIDS VOLCANIC ASH Fine particles of crushed rock and glass that Solid materials ejected can travel far distances in ash clouds and wind, from volcanoes during contributing to environmental damage from eruptions. eruptions, known commonly LAPILLI as pyroclastic materials or Pebble sized fragments of lava or pumice. tephra. They range in size VOLCANIC BOMBS from ash to boulders. Chunks of lava blasted into the air that solidify before reaching the ground. TEPHRA FALL Fragmented material consisting of pumice, scoria, lithic materials and crystals.  LAVA VOLCANIC LIQUIDS Molten rock expelled from volcanoes during eruptions. It’s temperatures can reach 700 degrees celcius. These liquid emissions are LAHAR mostly composed of molten rock A flowing mixture of volcanic debris and water that is expelled during eruptions. — and can also go by “mud flows”. the characteristics of volcanic PAHOEHOE liquids depends on material, Smooth and ropelike lava flows, often formed composition and temperature. by low viscosity basaltic lava. PILLOW LAVA Forms underwater, characterized by their rounded, pillowy shape. LASTING EFFECTS OF VOLCANIC EMISSIONS UPON THE WORLD Volcanic emissions both have a temporary and a lasting impact upon the world. Gaseous emissions have the power to block out the sun and cause global cooling, while solids cause damage to infrastructure and nature, and liquids poison and change the environment. Volcanic emissions are not just dangerous, but also a beneficial and necessary phenomenon that reshapes the land and helps with soil enrichment, and is a natural occurrence in the world.  BY ALBERT DOMINIC SOTTO THANK YOU!