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19 Cards in this Set
- Front
- Back
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Deep oceanic trenches are associated with:
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earthquakes
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Folding is the result of __ plate tectonic processes.
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converging
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A subduction zone is often created when:
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two plates converge
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Some of the most highly elevated and tectonically active mountain ranges in the world are the result of:
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converging continental plate boundaries
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According to high-resolution GPS satellites, lithospheric plates are moving at an average rate of:
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7cm per year
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Along continental rifts and hot spots, vast amounts of basaltic lava can flow from fissures, forming
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Flood Basalts
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Basaltic lavas differ from felsic lavas in that they contain more....:
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silica
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The Richter scale is used to express the:
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Intensity of an earthquake, magnitude...
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The Hawaiian Islands and Emperor Seamounts represent a hot-spot track that illustrate that the Pacific plate has been moving in this direction for this long:
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Northwestward
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As a result of the subduction of oceanic crust under a continent, magma is most likely to erupt from:
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the oceanic trench
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Which type of volcanic feature is most common around the Pacific Ocean basin?
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stratavolcano
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Globally, most active volcanoes are located along:
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subduction zones
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The steep slopes and high eruptive potential of stratovolcanoes is a result of a dominantly ______ magma source.
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felsic
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Explosive or voluminous eruptions may cause the volcano to collapse into the floor of the empty magma chamber below, producing a very large depression called a:
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caldera
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Mafic lava is composed mostly of:
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Silica and iron
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Geothermal energy is typically collected using:
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steam and turbines
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__________ is the difference between the highest and lowest points in a given area.
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relief
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A fracture in rock along which movement has occurred parallel to the surface is known as a
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fault
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An elongated region of the crust that has been deformed by continental collision is known as a(n):
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continental suture
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