PPT-Volcanic Eruptions

Chapter 9 Section 1 Volcanic Eruptions During an eruption magma is forced to the Earths surface Magma molten rock below the Earths surface Lava magma that flows on the Earths surface. The volcanic aerosol cloud forms in several weeks by the conversion of sulfur dioxide SO to sulfate aerosol and its subsequent microphysical transfor mations The resulting cloud of sulfate aerosol particles with a residence time of a couple of years Volcanic Eruptions. 1. Why Volcanoes Erupt:. The F of expanding gas builds and pushes magma through the vent. 2. Major Factors in Eruptions:. a. The amount of trapped gas. CO. 2. and Sulfur. b. Silica Content. 1/16/13 Volcanic Landforms Notes. Formed from . l. ayers of Lava and ash. shield volcanoes. cinder cone volcanoes. composite volcanoes. lava plateaus . Formed from magma . Volcanic necks. Dikes. Sills, batholiths. Mr.McMahon . Learning Objectives . To understand . WHY. volcanic activity occurs.. To understand . HOW. the distribution of Volcanic activity relates to plate boundaries.. To . EXPLAIN . how Volcanic activity can be predicted.. Earth Science Fall . 2012 . Vocabulary: . aa. – jagged chunks of lava formed by rapid cooling on the surface of the lava flow . Vocabulary:. Caldera- large basin-shaped depression formed when an explosion destroys the upper part of a volcanic cone or when the magma chamber below a volcano is emptied during an eruption. By Karanasiou Katerina B1. 07/02/2017. Volcano…. Volcano is open passageway from the interior of the Earth that allows blast rock and gases from the interior to the cortex surface in the form of lava. This activity creates mountains. Impacts on the Atlantic Multidecadal Oscillation and Initiation of the Little Ice Age. . Alan . Robock and . Joanna Slawinska . (robock@envsci.rutgers.edu), Dept. . Environmental Sciences. , Rutgers University. More than 2,000 years ago, Pompeii was a busy Roman city near the sleeping volcano Mount Vesuvius. People did not see Vesuvius as much of a threat. Everything changed when Vesuvius suddenly erupted and buried the city in a deadly blanket of ash that was almost 20 ft. thick!. 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 . Warning . Know when event is happening. Education . Know what to do when an event happens. Research . Know what will happen in an event. ‘Water’ Volcanoes. . Water that can be hazardous that are due to magma or Lava. What is a volcano?. A volcano is a vent or 'chimney' that connects molten rock (magma) from within the Earth. ’. s crust to the Earth's surface. . The volcano includes the surrounding cone of erupted material. . Learning . Targets. Compare the types of volcanic eruptions. Describe a method for predicting volcanic eruptions. Volcanic Eruption. Magma collects in . magma chamber. Hot magma . expands. .  creates . to September 22. 1. Wk. 2 Day 1. Before: Question of the Day. What 3 factors control the style of a volcanic . eruptions?. During: Notes. After: Exit Slip. 2. Three Types of Volcanoes. Shield. Cone. Composite. Társilo. Girona. Science . Questions: . One of the . most . enigmatic . volcanic signals . is shallow . tremor. , a highly-periodic ground vibration that is . long-lasting . (from minutes to years.