Exam 6: Formation of Metamorphic Rocks

Although muscovite, feldspar and quartz are not considered useful as index minerals, which of the following situations could be useful in determining the grade of metamorphism in a region?

Figure 6.23 -Using Figure 6.23 from your textbook, choose the option that correctly matches parent rocks with possible metamorphic products.

A weakly foliated metamorphic rock composed of green minerals such as chlorite is classified as a(n)

Which type of stress always causes change in shape but not in volume?

A shale metamorphosed to low metamorphic grade would become a(n)

The starting composition of a metamorphic rock, with slight modification, is identical to the ending composition.

Which type of metamorphism occurs exclusively at lower pressures?

A shale metamorphosed to medium metamorphic grade would become a(n)

What aluminosilicate polymorph is stable at a pressure of 1.5 kilobars and a temperature of 600 degrees C?

What is the definition of strain?

What aluminosilicate polymorph is stable at a pressure of 8 kilobars and a temperature of 600 degrees C?

When do black smokers occur?

Which of the following parameters does not determine the mineral composition and texture of a metamorphic rock?

When geologists study metamorphism in the laboratory, which factor would they probably not vary?

What is metamorphism?

What grade of metamorphism occurs at a depth of 5 km and a temperature of 300 degrees C?

A foliated, greasy metamorphic rock composed of graphite is classified as a(n)

How do geologists know how to determine the stability of minerals?

What role does fluid play in metamorphism?

Which rock is described below? "This rock is shiny and contains scattered, well-formed crystals of garnet, staurolite, and kyanite."