PPT-The Rock Cycle Volcanos Types of volcanoes

Shield volcano Fissure flood volcano Composite strato volcano Cinder Cones Rhyolite caldera complex Super volcanos Yeah baby yeah Terms cone Caldera Lava dome Parasitic cone Lava Cinder Ash . Lava Video. Volcanoes, magma, and lava. Volcanoes are weak spots in the crusts where molten material, or magma, comes to the surface.. When magma reaches the surface it is called lava.. The lava released during volcanic activity builds up Earth’s surface, it is a constructive force.. 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. Frequency and Quantity. There are ~ 550 historically active volcanoes. About 60 erupt annually. The majority are 1) at the edge of continents and 2) underwater. Dormant volcanic cone in Japan. What causes volcanoes?. Mountains. A . mountain. is an area of land that rises steeply from the land around it. . Most mountains belong to . ranges. , and ranges that are close together make up . belts. . . Most mountain belts are located along plate boundaries. . The Earths crust . The earths crust is in constant motion.. Volcanoes and earthquakes arise as sections of crust push . toghether. or pulled apart. Volcanoes and earthquakes are more common in certain parts of the world. By monitoring ground vibrations scientists can sometimes. Target #16- I can summarize the conditions needed for magma to form. Despite the high temperature in the mantle, most of the layer remains solid due to extreme pressure. Magma: . liquid rock produced under Earth’s surface. 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. . 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 . Earth’s atmosphere.. By Oliver and Danny. 1. TREMORS. Earthquakes………4-5. . Tempricture. scales………….7. Safety rules………8-9. Videos………….10. 2. Tsunami. I. f a tsunami hits anywhere around the world, it will destroy . Volcanism is mostly focused at plate margins. Pacific Ring of Fire. This map shows the margins of the Pacific tectonic plate and surrounding region. The red dots show the location of active volcanism. Notice how the majority of the volcanism is focused in lines along the plate boundaries? For this region is the area known as the “Pacific Ring of Fire”.. What You Will Learn. Describe the formation and movement of magma. . Explain the relationship between volcanoes and plate tectonics. . Summarize the methods scientists use to predict volcanic eruptions. . Setting up . your. . foldable. First fold your paper in half (hamburger, not hot dog).. Hold your paper so that it opens like a book.. Now, using a ruler, draw 3 horizontal lines at the following distances from the top:. 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?. . . Cause. most volcanoes are formed when two of Earth’s plate collide. the collision drives one of the plates under another . the plate that is under the other one begins to melt-->this melted rock is known as magma.