Metamorphic rocks
from class:
Intro to Astronomy
Definition
Metamorphic rocks are rocks that have undergone transformation due to extreme heat, pressure, or chemically active fluids. They originate from pre-existing igneous, sedimentary, or other metamorphic rocks.
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5 Must Know Facts For Your Next Test
- Metamorphic rocks are classified into foliated and non-foliated types based on their texture.
- Common examples of metamorphic rocks include schist, gneiss, marble, and slate.
- The process of metamorphism does not melt the rock but changes its mineralogical composition.
- Metamorphic rocks are often found in continental collision zones where tectonic plates converge.
- They play a crucial role in understanding the geological history and structure of Earth's crust.
Review Questions
- What factors contribute to the formation of metamorphic rocks?
- Can you name two common types of metamorphic rocks and describe their characteristics?
- How does the process of metamorphism affect the mineral composition of a rock?
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