'Explosive eruptions' diaporamas de présentation

Volcanoes and Other Igneous Activity

Volcanoes and Other Igneous Activity. Volcanoes: Content Standards Addressed. Origin of magma. Magma originates when essentially solid rock, located in the crust and upper mantle, melts. How Magma Rises. Where do volcanoes form?. Volcanoes form at:

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Chapter Four

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Volcanoes

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Chapter 11

Chapter 11. Review Game. 1. Dikes are formed when __________. The top of a volcano collapses down Magma enters a horizontal crack and hardens Magma enters a vertical crack and hardens Magma cools underground before reaching the surface.

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8.2 Volcanic Eruptions

8.2 Volcanic Eruptions. Where the rock cycle begins. 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 pressure

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Climate Cooling

Climate Cooling. Proxy evidence indicates an erratic cooling Over both poles and mid latitudes Roughly equal cooling in first and second half of interval. Tectonic Scale Cooling Mechanism?. Lower volcanic CO 2 emissions Increased weathering Increased ocean heat transport Tectonic changes

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When Volcanoes Erupt PG . 107

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Shield Volcanoes

Shield Volcanoes. The magma inside a shield volcano is rich in iron and magnesium (Fe and Mg) and is very fluid. (low viscosity = thin) Since the magma is very fluid, the lava coming out of the volcano tends to flow great distances.

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Computer Lab Differences between volcano types

Computer Lab Differences between volcano types. Review. Mantle magma : low in silica (like flour) so it is more runny Melted Crust Magma : More silica so it is thicker (Creates pyroclasts) Contains water vapor because of ocean water when it subducts. VOLCANO:

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Volcanoes

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Volcanoes

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Types of volcanic eruption

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18.2 - Eruptions

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Daily Review #6

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Volcanic Eruptions

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Volcanoes

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Volcanoes

Volcanoes. You need to know: There are 3 types of volcanoes which are determined by the lava eruptions that form them Types of eruptions are determined by the composition of the lava and gasses There are many different things that come out of a volcano Volcanoes occur at different places.

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Volcanoes

Volcanoes. Volcanoes. C aused by magma (a mixture of liquid rock, crystals, and dissolved gas) expelled onto the Earth's surface . Types of Eruptions: Compare and contrast 1. Explosive (violent) Ex: Mount St. Helens and Pinatubo B egins with a blockage in the crater of a volcano

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13-2 Notes

13-2 Notes. There are 2 main types of magma. They are:. Mafic . Felsic. Magnesium and Iron . Feldspar and Silica . Dark in Color . Light in Color . Oceanic Crust . Continental Crust . Low Viscosity . High Viscosity . Runny Lava . Sticky Lava .

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Mount Pinatubo

November 19, 2013. Mount Pinatubo is located on the island of Luzon in the Philippines. Mount Pinatubo is a volcano formed from subduction of the oceanic Philippine plate under the continental Eurasian plate. .

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