Volcanic Landforms Formation

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What is the primary reason for the extensional deformation in the East African Rift Valley?

The underlying mantle is rising from below and stretching the overlying continental crust (correct)

The Pacific Ring of Fire is expanding

The African plate is being pushed together

The Red Sea is shrinking

What type of volcanism is common in areas of extensional deformation?

Strombolian

Andesitic

Basaltic and rhyolitic (correct)

Phreatomagmatic

What is the name of the region in the western U.S. where extensional deformation and volcanism are occurring?

East African Rift Valley

Pacific Ring of Fire

Basin and Range Province (correct)

Rio Grande Rift

What is the name of the zone around the Pacific Ocean where many active and dangerous volcanoes are located?

The Ring of Fire Signup and view all the answers

What is the process by which the crust is being stretched and eventually rifted apart in the East African Rift Valley?

Extensional deformation Signup and view all the answers

What type of fault is produced by extensional deformation?

Normal fault Signup and view all the answers

What is the name of the process by which the underlying mantle rises from below and melts to produce magmas?

Upwelling Signup and view all the answers

What is the name of the region where the African plate is being split?

East African Rift Valley Signup and view all the answers

What type of eruptions are common in Iceland?

All of the above Signup and view all the answers

What is the type of volcanism that occurs in the Mid-Atlantic Ridge?

Basaltic Signup and view all the answers

Volcanic Landforms Formation

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Questions and Answers

What is the primary reason for the extensional deformation in the East African Rift Valley?

What type of volcanism is common in areas of extensional deformation?

What is the name of the region in the western U.S. where extensional deformation and volcanism are occurring?

What is the name of the zone around the Pacific Ocean where many active and dangerous volcanoes are located?

What is the process by which the crust is being stretched and eventually rifted apart in the East African Rift Valley?

What type of fault is produced by extensional deformation?

What is the name of the process by which the underlying mantle rises from below and melts to produce magmas?

What is the name of the region where the African plate is being split?

What type of eruptions are common in Iceland?

What is the type of volcanism that occurs in the Mid-Atlantic Ridge?

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