Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of...
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Transcript of Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of...
![Page 1: Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of molten rock.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0241a28abf838cd4585/html5/thumbnails/1.jpg)
Chapter 6, Section 1Igneous Rocks
• Igneous Rock • A rock that forms from the cooling and hardening of molten rock
![Page 2: Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of molten rock.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0241a28abf838cd4585/html5/thumbnails/2.jpg)
• Magma
• Lava
• Molten rock found under the Earth’s Surface
• Molten Rock found on the Earth’s surface
![Page 3: Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of molten rock.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0241a28abf838cd4585/html5/thumbnails/3.jpg)
• Felsic magma
• Mafic magma
• Light in color, very thick; has a high silica content
• Dark in color and very thin; low silica content
![Page 4: Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of molten rock.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0241a28abf838cd4585/html5/thumbnails/4.jpg)
• Intrusive igneous rocks
• Rocks that form underground from magma
• Take a long time to cool because underground (holds the heat in)
![Page 5: Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of molten rock.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0241a28abf838cd4585/html5/thumbnails/5.jpg)
• Extrusive igneous rock
• Forms on the Earth’s surface from lava
• Cools and hardens very quickly b/c on the Earth’s surface
![Page 6: Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of molten rock.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0241a28abf838cd4585/html5/thumbnails/6.jpg)
• Crystal size
• Porphyry
• Intrusive igneous rocks tend to have LARGE crystals
• The longer it takes the rock to cool, the larger the crystals will be
• VERY large crystals
![Page 7: Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of molten rock.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0241a28abf838cd4585/html5/thumbnails/7.jpg)
• Granite family • Felsic magmas• Granite• Rhyolite• Pumice• Obsidian
![Page 8: Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of molten rock.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0241a28abf838cd4585/html5/thumbnails/8.jpg)
• Gabbro family • Mafic magmas• Gabbro• Basalt• Scoria• Diabase
![Page 9: Chapter 6, Section 1 Igneous Rocks Igneous RockA rock that forms from the cooling and hardening of molten rock.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0241a28abf838cd4585/html5/thumbnails/9.jpg)
• Diorite family • Intermediate magma
• Diorite and andesite