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Natural Disasters By: Patrick L. Abbott
Chapter 7 Volcanism and Plate Tectonics
Overview zPlate-Tectonic Setting of Volcanoes zVolcanism at Spreading Centers zVolcanism at Subduction Zones zKiller Events and Processes at Subduction- Zone Volcanoes zHot Spots
Overview (cont.) zVolcanism at Continental Hot Spots zGigantic Intraplate Volcanic Eruptions zVolcano Monitoring and Warning
Plate-Tectonic Setting of Volcanoes zLocations zActivity
Volcanism at Spreading Centers zIceland yFissure Eruption of 1783 yJokulhlaup of 1996 zKiller Lakes of Cameroon, Africa yFailed rifts
Volcanism at Subduction Zones zCascade Range, Pacific Northwest yMount St. Helens, Washington, 1980 yLassen Peak, California, yMount Shasta, California yMount Rainier, Washington
Killer Events and Processes at Subduction-Zone Volcanoes zPyroclastic Flows yMount Mayan, Philippines, 1968 yMount Unzen, Japan, 1991 yMont Pelee, , yMont Pelee, Martinique, 1902 zLahars yNevado Del Ruiz, Columbia, 1985
Hot Spots zVolcanism at Oceanic Hot spots yHawaii yKiller Event of 1790
Volcanism at Continental Hot Spots zYellowstone National Park yEruptive Sequence xResurgent domes
Gigantic Intraplate Volcanic Eruptions zLong Valley, California yCharacteristics yHistory
Volcano Monitoring and Warning zSigns zProgram zBenefits
Landforms (Relief Features) associated with plate boundaries ? ? ?
Composite Volcanoes Review: What characteristics make a composite volcano? Answer: High Gas, High Silica, High Viscosity.
Volcanism Volcanic Features Location and Types of Volcanic Activity Effusive Eruptions Explosive Eruptions Volcano Forecasting and Planning.
Chapter 8: Plate TectonicsChapter 8: Plate Tectonics 8.1: Earth has several layers 8.2: Continents change position over time 8.3: Plates move apart 8.4:
How Do Earths Plates Move? Chapter 1, Section 2, pD14-19.
Plate Movement and Plate Boundaries Chapter 4, Section 3.
Chapter 12 Section 1. What is a Volcano? Opening in the Earth (called a vent) that erupts gases, ash, and lava. –Volcanic mountains result from the build-up.
A volcano is an opening in the Earth’s crust where lava comes out.
CAUSE & EFFECT IN PLATE TECTONICS. What happens where? Margin TypeVolc.EQsF-T Mtns Trench PassiveNNNN DivergentYYNN TransformNYN?N C-C CollisionNYYN C-O.
Plate Tectonics Study the location of the plates on the map below.
Unit 2: Plate Tectonics Test Review. What is the name of the SUPERCONTINENT that was once one land mass?
Island Arc. What is an Island Arc? A group of volcanic islands, usually situated in a curving arch-like pattern that is convex toward the open ocean,
Copyright © Houghton Mifflin Company. All rights reserved. Essentials of Geology, 1b–1 Plate Tectonics A geological theory that states that pieces of Earth’s.
HDWK Mid Ocean Ridges –Detected a long time ago Molten Material (go look! Pillow Lava!) Magnetic Stripes Drilling Samples Subduction and Deep Ocean Trenches.
Plate Tectonics 6.E.2.2 Explain how crustal plates and ocean basins are formed, move and interact using earthquakes, heat flow and volcanoes to reflect.
Mr. Russo Beaumont High School Divergent boundary Convergent boundary Transform fault boundary Oceanic Ridge Rift Valley Seafloor Spreading.
Volcanoes Chapter 7. Volcanoes of the World Relationships of Volcanic Activity to Plate Tectonics.
Who Wants to be a Millionaire? $500 We learn about the core of the earth by A – digging deep into the earth. B – studying earthquake waves. C – studying.
Theory of Plate Tectonics Plate Tectonics Plate Boundaries Causes of Plate Tectonics.
Chapter 14 The Ocean Floor. Section 14.2 Ocean Floor Features.
Chapter 19 Plate Tectonics. Alfred Wegener l A man with an idea. l In 1912 l Noticed similar shapes l similar fossils l Similar rock structures l Similar.
Volcanoes What is a volcano? A volcano is a mountain that forms when molten rock erupts or flows as lava from an opening in Earth’s surface.
Plate Tectonics. The youngest material on the ocean floor is found where plates move apart. On which of the following structures is it usually found?
Volcanic Activity What caused Mt. St. Helens to erupt?
What do you already know? What do you want to learn? SEEC Ecuador 2010 Presentation by: Mary D. Curtis Brittany L. Heller iwith.org.
Constructive and Destructive Earth Processes Todays Essential Question How does our Earths crust continue to change?
Plate Tectonics What evidence do scientists have to support the fact that the Earths crust is continuously moving?
Topic: Earth’s Features Essential Question: What crustal features are created by the movement of Earth’s plates?
Warm Up 11/ What hypothesis states that the continents were once joined to form a single supercontinent? a. continental driftc. plate tectonics.
The Geologic History of Washington State & Kittitas County Jana Jones Mabry.
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