A vent where molten rock and gas escape from inside the earth. Volcanoes transfer energy from the center of the earth to the surface. Vulcan-God of Fire Types of Volcanoes Shield Built from layers of lava Non-explosive eruptions Not steep, but big Types of Volcanoes Cinder Cone Moderately ex...
Volcanoes An opening in the earth that erupts gases, ash and lava. Caused by plate movement along boundaries. Occur at both divergent and convergent plate boundaries. Magma - melted rock under the surface (INSIDE) Lava – Melted rock above the surface (OUTSIDE) LAVA MAGMA Many Kinds of volc...
Volcanoes & Volcanic Eruptions
Volcanic Landforms: Necks & Sills Volcanic Neck - magma hardens in a volcano's pipe. The softer rock around the pipe wears away, exposing the hard rock of the volcanic neck. A sill forms when magma squeezes between horizontal layers of rock and hardens. Volcanic Landforms: Dikes and Bathol...
7. T/F: P waves look like this. 8. What are the machines called that measure earthquakes? Seismometers Seismographs Seismeters Seismolators 9. What is the highest number on the Richter scale? 10 20 50 5 10. Which of the following is not a natural disaster that earthquakes cause? Landsl...
Volcanic Hazards Pyroclastic Flows Lahars Ash fall Lava flows Fumaroles Pyroclastic Flows Hot ash, dust and gases ejected from the volcano flows very fast (more than 200 km/h) down slope Temperatures can exceed 700 degree C Pyroclastic Material Volcanic Bombs- large blobs of magma that hardens in...
Volcanic Landforms 6 th Grade. 2 Kinds of Volcanic Eruptions Quiet Eruptions: – If magma is low in silica – Lava is low in viscosity and flows easily. 3 TYPES OF VOLCANOES. SHEILD HOW DO THEY FORM? Thin layers of lava pour out a vent and harden on top of previous layers. ...
Volcanic Landforms 6 th Grade. 2 Kinds of Volcanic Eruptions Quiet Eruptions: – If magma is low in silica – Lava is low in viscosity and flows easily. VOLCANOES MS. SCERRA. WORD ORIGIN Romans believed in Vulcan, their god of fire. They thought that Vulcan worked at a hot...
Volcanoes. volcanoes
Volcanoes About 75% of all the Earth’s active volcanoes are in an area known as the Ring of Fire which surrounds the Pacific Ocean. Volcanoes Volcanoes are relieving stress of the earth the same as earthquakes. The difference is that magma comes to the surface....