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Mount Pinatubo

November 19, 2013. Mount Pinatubo is located on the island of Luzon in the Philippines. Mount Pinatubo is a volcano formed from subduction of the oceanic Philippine plate under the continental Eurasian plate. .

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Mount Pinatubo

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  1. November 19, 2013 Mount Pinatubo is located on the island of Luzon in the Philippines. Mount Pinatubo is a volcano formed from subduction of the oceanic Philippine plate under the continental Eurasian plate. Volcanic activity at Mount Pinatubo began approximately 1.1 million years ago. It was formed from a constructive force when magma was forced up from a magma chamber during volcanic eruptions. Now, Mount Pinatubo is an active stratovolcano that has both explosive and non-explosive eruptions. Mount Pinatubo had a long period of dormancy followed by eruptions starting 35,000 years ago. It’s most recent major eruption took place in 1993. The type of magma feeding Mount Pinatubo comes from two places. The first type is very low silica magma from the oceanic Philippine plate. The second is a higher silica magma from the continental Eurasian plate. When Mount Pinatubo erupts, the lava and pyroclastic material cools and turns into igneous rock. In the future, Mount Pinatubo will most likely erupt again. As long as the Philippine plate continues to subduct under the Eurasian plate, there will be more magma pushed up to fuel many more future eruptions. Berk Period 7 Mount Pinatubo

  2. Citations • “The Smallest Clues.” Understanding Our Planet Through Chemistry. USGS, 4, Mar. 2013. Web. 17 Nov. 2013 <http://minerals.cr.usgs.gov/gips/na/small.html>. • “Pinatubo.” Global Volcanism Program.Smithsonian Institution, 2013. Web. 17 Nov. 2013 <http://www.volcano.si.edu/volcano.cfm?vn=273083>.

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