Farouk El Baz (BellComm) - "Lunar Igneous Intrusions" - 1969
Volcanic Activity Chapter 10. Igneous __________- classified by shape, size, and orientation...
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Transcript of Volcanic Activity Chapter 10. Igneous __________- classified by shape, size, and orientation...
![Page 1: Volcanic Activity Chapter 10. Igneous __________- classified by shape, size, and orientation Intrusions.](https://reader036.fdocuments.net/reader036/viewer/2022070415/5697bfc81a28abf838ca8153/html5/thumbnails/1.jpg)
Volcanic Activity
Chapter 10
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Igneous __________- classified by shape, size, and orientation
Intrusions
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Major Volcanoes Around the World
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There are three types of volcanic cones:
______ – explosive eruptions, small but steep slopes, pyroclastics
_______ – nonexplosive eruptions, fluid basaltic lava, gentle broad slopes
_________ – alternating between lava and pyroclastics, explosive and nonexplosive eruptions, steep and tall
CinderShield
Composite
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The _________ Islands are a volcanic group of islands 600 miles off the coast of Ecuador on the equator.
Galapagos
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Lava flowing underground created this _____ _____, large enough to walk through.
lava tube
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Kilauea on Hawaii is a good example of a _______ cone, with less explosive eruptions and less viscous lava.
shield
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Mt Rainier and Mt St Helens are good examples of __________ cones, with explosive eruptions and erupted materials such as ash, bombs, and blocks.
Mt St Helens
Mt Rainier
composite
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Crater Lake in Oregon is a __________formed from the collapse of the gigantic volcano Mount Mazama. ________________in the center of the lake is a small cinder cone.
caldera
Wizard Island
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Volcanoes Review:
Fast-moving clouds of gas, ash, and other tephra are called ____________ _
Large, rounded tephra are called __________ .
Iceland and Hawaii have ______ cones. A mushroom-shaped igneous
intrusion is a ______________.laccolith
pyroclastic flows
volcanic bombs shield