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Metamorphic Rock Summary: Pressure Role

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Questions and Answers

What is the purpose of classifying metamorphic rocks based on temperature?

To explain the classification of minerals within metamorphic rocks

To describe the relative temperature and pressure conditions under which metamorphic rocks form (correct)

To list the different types of metamorphic rocks

To provide a historical overview of metamorphism

Why does the kind of metamorphic rock formed depend partly on the mineralogy of the parent rock?

Because the mineral composition of the parent rock determines the temperature and pressure conditions

Because the mineralogy of the parent rock influences the metamorphic grade

Because certain minerals are more prone to recrystallization under specific conditions

Because parent rock mineralogy impacts the types of minerals that can form during metamorphism (correct)

What do Isograds plot in metamorphic rocks?

The first appearance of an index mineral (correct)

The relative intensity of metamorphism in different rocks

The mineral compositions of different types of metamorphic facies

The temperature and pressure conditions under which rocks form

Why are metamorphic facies named after distinctive features or minerals found in some rocks?

To highlight their unique mineral compositions Signup and view all the answers

Which type of metamorphism involves the transformation from Zeolite to Eclogite?

Stable Continent Metamorphism Signup and view all the answers

What is the primary role of pressure in metamorphic processes?

To facilitate recrystallization and growth of new minerals Signup and view all the answers

How do index minerals help in understanding metamorphic rocks?

By showcasing the mineral compositions under specific temperature and pressure conditions Signup and view all the answers

In which type of metamorphism will you find Hornfels as a result?

Contact Metamorphism Signup and view all the answers

What is the significance of Isograds in metamorphic geology?

They demarcate boundaries between different metamorphic zones Signup and view all the answers

What is a key feature of the transformation from Greenschist to Amphibolite?

Increase in both pressure and temperature Signup and view all the answers