PPT-Unit 1.3 : Volcanic Activity

MrMcMahon 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. developments since 2010. © Crown copyright Met Office. Ian Cameron, Met Office Executive Head Aviation, . June 2014. London Volcanic Ash Advisory Centre (VAAC). © Crown copyright Met Office. The London VAAC is an International Civil Aviation Organization (ICAO) designated centre, responsible for issuing advisories for volcanic eruptions originating in Iceland and the north-eastern corner of the North Atlantic.. 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. Where do volcanoes occur—and why?. Divergent [MOR] boundaries . About 75% of erupted lava is found here. Basaltic magma; low viscosity, therefore it flows easily!. Oceanic crust ranges from about 2 km to 10 km thick. 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. Questions.. What is . volcanism (volcanic activity)?. Where does volcanic activity occur?. Some interesting or important volcanoes.. Volcanic activity could be described as any place where material from within the Earth reaches the surface.. JUAN PABLO GIRALDO and NICOLAS SAAVEDRA. LOCATION. Located on Honshu Island at 3,776.24 m (12,389 ft.). An active strato volcano that last erupted in 1707–08, Mount Fuji lies about 100 kilometers (60 mi) south-west of Tokyo, and can be seen from there on a clear day. Mount Fuji's exceptionally symmetrical cone, which is snow-capped several months a year, is a well-known symbol of Japan and it is frequently depicted in art and photographs, as well as visited by sightseers and climbers.. 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. 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 . Volcanoes. In the last section we learned that the outer layer of the earth is called the Crust.. We also learned that the crust is broken into many different pieces called Plates.. The plates are constantly moving because of Continental Drift.. How and why do volcanoes erupt?. Hot, molten rock (magma) is buoyant (has a lower density than the surrounding rocks) and will rise up through the crust to erupt on the surface.. When . magma reaches the surface it depends on how easily it flows (viscosity) and the amount of gas (H. Section 18-1. Magma. Objectives:. Describe factors that can affect the formation of magma. Compare and contrast the different types of magma. Volcanic Eruptions. In the last 10,000 years more than 1500 major volcanic eruptions have been recorded…where and why do these eruptions occur?. 1. An opening in Earth’s crust through which molten rock, ash and gases erupt.. 2.Volcano: The landform that develops around the opening.. 3. A way for Earth to release heat energy from the interior due to radioactive decay.. What is . volcanism (volcanic activity)?. Where does volcanic activity occur?. Some interesting or important volcanoes.. Volcanic activity could be described as any place where material from within the Earth reaches the surface.. As magma cools underground, it will begin to solidify within Earth’s crust.. Once completely crystallized, these masses of igneous intrusive rock are referred to as INTRUSIONS or as PLUTONS. We will talk about several types of igneous .