10 Questions
What is the primary mechanism responsible for the formation of hydrothermal metamorphic rocks?
Interaction with hot fluids and changing bulk composition
What is the typical temperature range for the onset of metamorphism in rocks?
150-200°C
What is the characteristic feature of dynamic metamorphism?
Stress dynamically deforming rocks in shear zones
What is the primary difference between contact and regional metamorphism?
Cause of metamorphism
What is the term for the process of growth of new minerals in metamorphism?
Recrystallization
Which type of metamorphism is characterized by the formation of skarns and marble?
Contact metamorphism
What is the term for the line on a map showing the first appearance of an index mineral with equal metamorphic grade?
Isograd
Which type of metamorphism is characterized by the formation of high-P minerals such as lonsdaleite and stishovite?
Impact metamorphism
What is the name of the process that results in the growth of new mica minerals in pelites?
Recrystallization
What is the name of the foliated rock type that forms through the segregation of mafic and felsic minerals?
Gneiss
Test your knowledge on the different types of metamorphism, including the growth of new minerals, changes in pressure and temperature, and the addition or loss of water and elements. Learn about the boundaries and limits of metamorphism, including the first occurrence of specific minerals and the beginning of melting. Review the key concepts covered in EOSC 221 after Midterm II.
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