The Rock Cycle Thinking about relationships amongst the
The Rock Cycle Thinking about relationships amongst the major rock groups
Major Rock Groups • Igneous – Formed from magma that cools and hardens (molten rock) – Intrusive Rock: magma that slowly cools and crystallizes within the Earth’s crust – Extrusive Rock (Volcanoes): magma that quickly cools at the surface • Sedimentary – Formed at the Earth’s surface due to weathering and erosion • Metamorphic – Changed by heat and pressure. 2
Fig. 2. 9 MAGMA
IGNEOUS Cools and hardens MAGMA 4
IGNEOUS Intrusive Cools and hardens MAGMA 5
Extrusive IGNEOUS Cools and hardens MAGMA 6
Weathering Erosion Transportation Extrusive IGNEOUS Intrusive Cools and hardens Uplift MAGMA 7
Weathering SEDIMENTS SEDIMENT Erosion Transportation Extrusive IGNEOUS Intrusive Cools and hardens Uplift MAGMA 8
Weathering SEDIMENTS SEDIMENT Erosion Transportation Compression Extrusive SEDIMENTARY IGNEOUS Intrusive Cools and hardens Uplift MAGMA 9
Weathering SEDIMENTS SEDIMENT Erosion Transportation Compression Extrusive SEDIMENTARY IGNEOUS Intrusive Cools and hardens Uplift MAGMA 10
Weathering SEDIMENTS SEDIMENT Erosion Transportation Compression Extrusive SEDIMENTARY IGNEOUS Intrusive Heat & Pressure METAMORPHIC Cools and hardens Uplift MAGMA Burial 11
Weathering SEDIMENTS Erosion Transport Compression Extrusive Can you see IGNEOUS any shortcuts? Intrusive SEDIMENTARY Heat & Pressure METAMORPHIC Cools and hardens Uplift MAGMA Melting Burial 12
Uplift ROCK CYCLE Burial 13
In Conclusion… • The rock cycle demonstrates the relationships among the three major rock groups • It is powered by the interior heat of the Earth • As well as earth’s momentum and… • The energy from the sun • It involves processes on the Earth’s surface as well as the Earth’s interior • It connects the “hydrologic cycle” with the “tectonic cycle”.
Weathering SEDIMENT Erosion Transportation Compression Extrusive SEDIMENTARY IGNEOUS Intrusive Heat & Pressure METAMORPHIC Cools and hardens Uplift MAGMA Melting Burial 16
- Slides: 16