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AIM: What are Metamorphic Rocks
Learning objective: To learn the formation process of metamorphic rocks. How will I learn: I will learn about metamorphic rocks using a note taking guide. How will I know when I have it: I will know when I have it when I can tell how metamorphic rocks form differently from other rocks
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Formation of Metamorphic Rocks
Metamorphism – “to change form” high temperatures and pressures beneath the surface causes pre-existing rocks to change. created from other rocks; igneous sedimentary and metamorphic Schist Slate Gneiss
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Contact Metamorphism – takes place in a small area
II. TYPES OF METAMORPHOSIM Contact Metamorphism – takes place in a small area when hot magma moves into rock and touches the rock. B. Regional Metamorphism – takes place over a large area, usually under mountains and results in high-grade metamorphism. *This symbol indicates contact metamorphism took place
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II. Agents of Metamorphism
A. Heat (magma or lava)- allows the minerals to move around and recrystallize. B. Pressure (Stress) – squeezes the rock changing the density and alignment(pattern). How would the density change after metamorphism?
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III. Classification of Metamorphic Rocks
Foliated Metamorphic Rocks (pattern) - minerals have aligned and show a pattern either mineral alignment or banding. Slate Gneiss
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B. Nonfoliated Metamorphic Rocks – - does not show a pattern.
- has a frosted appearance Quartzite Marble
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` CREATE AN INSTAGRAM PROFILE FOR METAMORPHIC ROCKS INCLUDE FOLLOWERS, FOLLOWING, PROFILE PICTURE, PHOTOS, POSTS, AND EMOJIS TO DESCRIBE METAMORPHIC ROCKS
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Observing pressure on mineral grains
Hypothesis: If pressure is added to mineral grains that are normally scattered in rock then_______________________ Materials: Drawings: Analysis and Conclusion
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The type of metamorphism section tells you how the rock was created
The comments section gives a accurate description of the rock and it’s parent rock The type of metamorphism section tells you how the rock was created
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