Rock Guided Notes - Part 2

Rocks Guided Notes


Part 2

What is Sedimentary Rock?

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Forms when existing rocks are

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into sediment then compacted and ​

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together.

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broken down

cemented

• Cementing

• Compaction

​

Processes

Formation of Sedimentary Rocks

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• Breaks rocks into sediments

• Moves sediment

• When an agent of erosion (water, wind, ice, or gravity) loses energy, it drops the sediment

• Process that squeezes or compacts sediments together

• Takes place when dissolved minerals are deposited in the tiny spaces among the sediments (glues together)

Weathering

Erosion

Deposition

Compaction

Cementation

• Weathering

• Erosion

• Deposition

• Compaction

• Cementation

What is a Metamorphic Rock?

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Form when ​

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rocks are changed by heat and ​

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Metamorphism means "______ ______"

Agents of Metamorphism

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: provides the energy needed to drive chemical reactions which causes existing minerals to recrystallize.

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: applied in all directions on a rock which causes space between mineral grains to close.

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​

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: hot, water based solutions that promote recrystallization by dissolving original minerals and then depositing new ones

Classification of Metamorphic Rocks

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Classified by

and composition

Foliated

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Rock with

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or ​

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appearance. For example, Gneiss

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layered

banded

Non-foliated

No layered or banded appearance

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Contains only

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mineral. Example: Marble