Download Chapter 1 Study Questions

Francis and Oppenheimer Volcanoes Text
Reading Study Questions
Chapter 1 Study Questions
1. In what rock type is most radioactive heat produced? Which isotope is the most
significant source of heat in this rock type? Justify your answer.
2. Why was heat flow so much higher in early earth history?
3. What percent of heat low is due to radioactive decay?
4. List and very briefly describe different sources of internal heat?
5. Define the following terms or concepts:
a.
b.
c.
d.
Chondritic earth model
Depleted mantle
Peridotite
Primitive
6. Review section 1.4 on volcanic minerals and rocks. Know the italicized terms.
7. Using Figure 1.9- make lists of mafic rock types, intermediate rock types, and
felsic/silicic rock types.
Chapter 2 Study Questions
1. Review section 2.1 on volcano distributions in different tectonic settings. Know
the italicized terms.
2. Describe and compare and contrast – thoellites and alkali basalt. Which rock
types are most important?
3. Explain concept of incompatible elements.
4. Explain fractional crystallization, partial melting, and assimilation. How do
magma evolve by these three different mechanisms?
5. How do OIBs differ from MORBs and why?