Podcast
Questions and Answers
What is the primary mechanism responsible for the formation of hydrothermal metamorphic rocks?
What is the primary mechanism responsible for the formation of hydrothermal metamorphic rocks?
- Annealing of rocks next to intrusions with aureoles
- Interaction with hot fluids and changing bulk composition (correct)
- High-temperature and high-pressure conditions during mountain building
- Replacement of original minerals with hydrous minerals during weathering
What is the typical temperature range for the onset of metamorphism in rocks?
What is the typical temperature range for the onset of metamorphism in rocks?
- 200-300°C
- 100-200°C
- 50-100°C
- 150-200°C (correct)
What is the characteristic feature of dynamic metamorphism?
What is the characteristic feature of dynamic metamorphism?
- Interaction with hot fluids and changing bulk composition
- Stress dynamically deforming rocks in shear zones (correct)
- High-temperature and high-pressure conditions
- Replacement of original minerals with hydrous minerals
What is the primary difference between contact and regional metamorphism?
What is the primary difference between contact and regional metamorphism?
What is the term for the process of growth of new minerals in metamorphism?
What is the term for the process of growth of new minerals in metamorphism?
Which type of metamorphism is characterized by the formation of skarns and marble?
Which type of metamorphism is characterized by the formation of skarns and marble?
What is the term for the line on a map showing the first appearance of an index mineral with equal metamorphic grade?
What is the term for the line on a map showing the first appearance of an index mineral with equal metamorphic grade?
Which type of metamorphism is characterized by the formation of high-P minerals such as lonsdaleite and stishovite?
Which type of metamorphism is characterized by the formation of high-P minerals such as lonsdaleite and stishovite?
What is the name of the process that results in the growth of new mica minerals in pelites?
What is the name of the process that results in the growth of new mica minerals in pelites?
What is the name of the foliated rock type that forms through the segregation of mafic and felsic minerals?
What is the name of the foliated rock type that forms through the segregation of mafic and felsic minerals?
