Chapter 6: Problem 12
Describe how magmas are produced at continental rifts. (E)
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Chapter 6: Problem 12
Describe how magmas are produced at continental rifts. (E)
These are the key concepts you need to understand to accurately answer the question.
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What factors control the viscosity of a melt? (C)
What is a large igneous province (LIP)? (E)
The Cascade volcanic arc of the northwestern United States is only about \(800 \mathrm{~km}\) long. The Andean arc of western South America is several thousand kilometers long. Look at a map showing the Earth's plate boundaries, and explain why the Andean arc is so much longer than the Cascade arc (E).
What process in the mantle may be responsible for causing hot-spot volcanoes to form? (E)
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