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

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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 19 MAGMA Cools & Crystallizes IGNEOUS ROCK

20 20 MAGMA IGNEOUS ROCK Intrusive Crystallization Cools slowly inside the earth

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

22 22 MAGMA Extrusive IGNEOUS ROCK Intrusive Crystallization Weathering & Erosion

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

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

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

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

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

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

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

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

31 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…

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


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