PPT-AIM: How does a Volcanoes eruption affect people, land and

Do Now How many natural disasters can you name HW Article due Wednesday Volcanoes are responsible for producing most of the water on Earth modifying the Earths atmosphere. Chapter 5. Rigid Earth to Plate Tectonics. Learning Objectives. Know the different types of volcanoes and their associated features. Understand the relationship of the volcanoes to plate tectonics. Know what geographic regions are at risk from volcanoes. Yellowstone Park is not only spectacular but also unique. It is the result of three volcanic eruptions, the likes of which have never been seen in all of recorded history. The first eruption occurred 2 million years, followed by two more eruptions 1 million years and 600,000 years ago. Below Yellowstone Park there is a hot spot that is generating basaltic magma. At the time of each of their three eruptions, the magma chamber began to produce large volumes of basaltic magma. Because of its low viscosity, the basaltic magma quickly rose to the bottom of the granitic continental crust. However, because the density of basaltic magma (density about 3) is slightly higher than that of granite (density about 2.9) it could not force its way through the granite to the surface. Instead, it began to pool beneath the granitic crust. The amount of heat trapped within the molten basaltic magma was enough to melt the minerals making up the overlaying and surrounding granite, forming a growing mass of granitic magma. Granitic magma is highly viscous and extremely gas-charged. Although it rose only very slowly, the granitic magma advanced upwards by melting even more of its own overlying granitic rock. At some point, radial fractures began to form around the rising mass of granitic magma. These fractures allowed steam eruptions to vent gas. Shortly after, with the overlying granitic rock severely weakened by the fractures, the highly gas-charged granitic magma erupted. The land to a distance of 200 miles in all directions was decimated. Pyroclastic flows, the most destructive eruptive features known, swept across the countryside. Ash fell across the country from the eruption site to the Atlantic Ocean. Ash polluted the world’s atmosphere, blocked the energy of the Sun, and plunged the Northern Hemisphere into a frozen wasteland for years. Can such an eruption occur in the Yellowstone region again? All the evidence suggests that the magma chamber below Yellowstone Park is current rising. According to the director of the Yellowstone Volcanic Observatory, it is not a question of whether or not another super-eruption CAN happen; it’s a question of WHEN it will happen!. Basaltic Lava – low silica content, low viscosity, low gas content. Hot spots – magma moves up from lower mantle and plates move over it . Ex. Hawaii. (note: see video on favorites). Shield Volcanoes. Chapter 9. Lesson 2. Videos. http://video.nationalgeographic.com/video/kids/forces-of-nature-kids/volcanoes-101-kids/. Volcanoes 101 National Geographic.. https://www.youtube.com/watch?v=cQMB7o3SXOw. Last Erupted 600,000 years ago: If erupted today would kill about 90,000 immediately but trigger worldwide crop failure. Vesuvius. Last . significantEruption. 1944 with a cycle of about 20 years for minor eruptions; 5 miles East of Naples – 3 million people in harms way. GO. What do you know already about volcanoes?. Let’s learn more. Click on the links below.. What is a volcano?. What is magma and what is lava?. What types of volcano are there?. What causes a volcano to erupt?. By: Evan Hazlett & Nick Rizzo. Sicily, Italy. DESCRIPTION. Mt. Etna is a composite volcano. It is the largest active volcano in Europe.. Mt. Etna is very explosive, with 4 eruptions since 2006.. . . Here we will compare extrusive and intrusive volcanic features and action. q distinguish magma from lava. q identify intrusive and extrusive igneous features (e.g., sill, dike, . batholith. By Robbie Barker, Maximilian Bryson, and Brendan . P. etrili. What is a volcano. A volcano is an opening in the Earth’s surface through which magma rises.. Formation of volcanoes. 1.Most volcanoes occur at colliding boundaries.. VOLCANOES.. What is a volcano?. A volcano is a mountain that opens . below . to a pool of molten rock . called a magma chamber below . the surface of the earth. When . the pressure . builds up, eruptions take place. . Learning Objective. : To be able to identify and describe the two different types of eruption. Effusive Eruptions…. Key Ideas:. Occur when hot, runny magma reaches surface. Gasses can escape more easily so less pressure builds up. Describe how the locations of volcanoes are related to plate tectonics.. Suggest why volcanoes are found at convergent and divergent plate boundaries.. Describe how . intraplate. volcanoes form.. Volcanic activity takes place primarily at . Mathematic. al Modeling by Implementing ‘Lesson Study’ in the Case of Volcanoes Eruption?. Subanar. Fadjar Shadiq. SEAMEO QITEP in Mathematics. PowerPoint Presented on . The 8th APEC - Tsukuba International Conference: Innovation of Mathematics Education through Lesson Study. Challenges to Emergency Preparedness for Mathematics (III). Focus on Fire and Volcanic Eruption.  . Robert . Wright. Hawaiʻi. Institute of Geophysics and Planetology, Honolulu, . HI.  . http://modis.higp.hawaii.edu. MODIS has detected volcanic thermal anomalies at over . 100 volcanoes since 2000.