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Rocks… what are the different types and how are they formed?

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Rocks… what are the different types and how are they formed?. Igneous rocks form from molten rock cooling and hardening on OR below the surface of the Earth. EXTRUSIVE igneous rocks are from cooled lava on the surface of the earth. - PowerPoint PPT Presentation

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Page 1: Rocks… what are the different types and how are they formed?

Rocks… what are the different types and how

are they formed?

Page 2: Rocks… what are the different types and how are they formed?
Page 3: Rocks… what are the different types and how are they formed?

Igneous rocks form from molten rock cooling and hardening on OR below the surface of the Earth.

EXTRUSIVE igneous rocks are from cooled lava on the surface of the earth.

INTRUSIVE igneous rocks form from magma cooling slowing inside the earth.

Page 4: Rocks… what are the different types and how are they formed?
Page 5: Rocks… what are the different types and how are they formed?

These intrusive igneous rocks have larger crystals because they cooled very slowly inside the earth.

Page 6: Rocks… what are the different types and how are they formed?

These extrusive igneous rocks cooled so quickly on the earth's surface they have very small or no crystals at all.

Page 7: Rocks… what are the different types and how are they formed?
Page 8: Rocks… what are the different types and how are they formed?

How are they formed?1

2

Rocks that form when particles of rock or sediments settle and

harden together.

Page 9: Rocks… what are the different types and how are they formed?
Page 10: Rocks… what are the different types and how are they formed?
Page 11: Rocks… what are the different types and how are they formed?
Page 12: Rocks… what are the different types and how are they formed?
Page 13: Rocks… what are the different types and how are they formed?

Metamorphic Rocks

Page 14: Rocks… what are the different types and how are they formed?

Rocks that are formed when existing rocks are heated and squeezed with

extreme pressure

Page 15: Rocks… what are the different types and how are they formed?
Page 16: Rocks… what are the different types and how are they formed?
Page 17: Rocks… what are the different types and how are they formed?

The Rock CycleThink about relationships among the

major rock groups and illustrate the Rock Cycle Diagram in your journal as we go through the PPT.

Page 18: Rocks… what are the different types and how are they formed?

Fig. 2.9

MAGMA

Page 19: Rocks… what are the different types and how are they formed?

19

MAGMA

Cools & Crystallizes

IGNEOUS ROCK

Page 20: Rocks… what are the different types and how are they formed?

20

MAGMA

IGNEOUS ROCK

Intrusive

Crystallization

Cools slowly inside the earth

Page 21: Rocks… what are the different types and how are they formed?

21

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

Crystallization

Cools quickly on the earth’s surface

Page 22: Rocks… what are the different types and how are they formed?

22

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

Crystallization

Weathering & Erosion

Page 23: Rocks… what are the different types and how are they formed?

23

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

SEDIMENT

Crystallization

SEDIMENTSWeathering& Erosion

Page 24: Rocks… what are the different types and how are they formed?

24

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

SEDIMENT

SEDIMENTARY

Crystallization

Weathering& Erosion

Transport

Deposition

Page 25: Rocks… what are the different types and how are they formed?

25

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

SEDIMENT

SEDIMENTARY

Crystallization

Weathering & Erosion

Transport

Deposition

Page 26: Rocks… what are the different types and how are they formed?

26

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

SEDIMENT

SEDIMENTARY

METAMORPHIC

Burial

Heat & Pressure

Crystallization

Weathering & Erosion

Transport

Deposition

Page 27: Rocks… what are the different types and how are they formed?

27

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

SEDIMENT

SEDIMENTARY

METAMORPHIC

Burial

Heat & Pressure

MeltingCrystallization

Weathering & Erosion

Transport

DepositionCan you see

any shortcuts?

Page 28: Rocks… what are the different types and how are they formed?

28

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

SEDIMENT

SEDIMENTARY

METAMORPHIC

Burial

Heat & Pressure

T

MeltingCrystallization

Weathering & Erosion

Transport

Deposition

Weather /Erode into sediments - Sedimentary

Page 29: Rocks… what are the different types and how are they formed?

29

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

SEDIMENT

SEDIMENTARY

METAMORPHIC

Burial

Heat & Pressure

T

MeltingCrystallization

Weathering & Erosion

Transport

Deposition

Heat & Pressure - Metamorphic

Page 30: Rocks… what are the different types and how are they formed?

30

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

SEDIMENT

SEDIMENTARY

METAMORPHIC

Burial

Heat & Pressure

T

MeltingCrystallization

Weathering & Erosion

Transport

Deposition

Melt & Crystallize into Igneous

Page 31: Rocks… what are the different types and how are they formed?

• The rock cycle demonstrates the relationships among the three major rock groups

• It is powered by the Earth’s heat

• It involves processes on the Earth’s surface as well as the Earth’s interior

• It connects the “water cycle” with the “tectonic cycle”.

In Conclusion…

Page 32: Rocks… what are the different types and how are they formed?

32

MAGMA

Extrusive

IGNEOUS ROCK

Intrusive

SEDIMENT

SEDIMENTARY

METAMORPHIC

Burial

Heat & Pressure

T

MeltingCrystallization

Weathering & Erosion

Transport

Deposition

Weathering & Erosion

Heat & Pressure

Melt & Crystallize


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