Geology: Sediment Layers and Metamorphic Rocks

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Questions and Answers

What conditions are required to create metamorphic rocks?

Heat above 150°C, pressure above 1.5x 10^8 Pa or 1480 atm, or both heat and pressure

What types of rocks can become metamorphic rocks?

Sedimentary and igneous rocks

Give two examples of metamorphic rocks.

Marble and slate

How are metamorphic rocks different from sedimentary rocks in terms of hardness?

<p>Metamorphic rocks are usually harder than sedimentary rocks</p> Signup and view all the answers

What is the process that constantly forms and erodes all rock types in the Earth's crust?

<p>Rock cycle</p> Signup and view all the answers

What are the original types of rocks that formed the Earth's crust?

<p>Igneous rocks</p> Signup and view all the answers

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