What is a migmatite (Fig. 6.6)?
Answer to relevant QuestionsWho first established the principles of metamorphic facies?During metamorphism, most chemical reactions are isochemical. Explain.Why don’t coal, oil, and natural gas fit the accepted definition of a mineral? (See Problem 2.21)Where in North America are petroleum and natural gas found (Fig. 7.4)?Give an example of a mineral formed by primary igneous processes.
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