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

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Presentation on theme: "Rocks… what are the different types and how are they formed?"— Presentation transcript:

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

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3 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.

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

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

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8 Rocks that form when particles of rock or sediments settle and harden together.
1 How are they formed? 2

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13 Metamorphic Rocks

14 Rocks that are formed when existing rocks are heated and squeezed with extreme pressure

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17 The Rock Cycle Think about relationships among the major rock groups and illustrate the Rock Cycle Diagram in your journal as we go through the PPT.

18 Fig. 2.9 MAGMA

19 IGNEOUS ROCK Cools & Crystallizes MAGMA

20 Crystallization Cools slowly inside the earth IGNEOUS ROCK Intrusive
MAGMA

21 Cools quickly on the earth’s surface
Extrusive IGNEOUS ROCK Intrusive Crystallization MAGMA

22 Weathering & Erosion Crystallization Extrusive IGNEOUS ROCK Intrusive
MAGMA

23 Weathering& Erosion Crystallization SEDIMENTS SEDIMENT Extrusive
IGNEOUS ROCK Intrusive Crystallization MAGMA

24 Weathering& Erosion Transport Deposition Crystallization SEDIMENT
Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Crystallization MAGMA

25 Weathering & Erosion Transport Deposition Crystallization SEDIMENT
Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Crystallization MAGMA

26 METAMORPHIC Weathering & Erosion Transport Deposition Heat & Pressure
SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Burial Heat & Pressure METAMORPHIC Crystallization MAGMA

27 METAMORPHIC Weathering & Erosion Transport Deposition Heat & Pressure
SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive Can you see any shortcuts? SEDIMENTARY Burial Heat & Pressure METAMORPHIC Crystallization Melting MAGMA

28 METAMORPHIC Weathering & Erosion Transport
SEDIMENT Transport Weather /Erode into sediments - Sedimentary Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Burial Heat & Pressure T METAMORPHIC Crystallization Melting MAGMA

29 METAMORPHIC Weathering & Erosion Transport Deposition
SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Heat & Pressure - Metamorphic Burial Heat & Pressure T METAMORPHIC Crystallization Melting MAGMA

30 METAMORPHIC Weathering & Erosion Transport Deposition Heat & Pressure
SEDIMENT Transport Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Burial Heat & Pressure T Melt & Crystallize into Igneous METAMORPHIC Crystallization Melting MAGMA

31 It is powered by the Earth’s heat
In Conclusion… 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”.

32 METAMORPHIC Weathering & Erosion Transport Weathering & Erosion
SEDIMENT Transport Weathering & Erosion Deposition Extrusive IGNEOUS ROCK Intrusive SEDIMENTARY Heat & Pressure Burial Heat & Pressure T Melt & Crystallize METAMORPHIC Crystallization Melting MAGMA

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