igneous rocks explain how the cooling rate of magma affects the texture of igneous rock
TRANSCRIPT
![Page 1: Igneous Rocks Explain how the cooling rate of magma affects the texture of igneous rock](https://reader033.vdocuments.us/reader033/viewer/2022051214/56649f005503460f94c15b45/html5/thumbnails/1.jpg)
Igneous Rocks
Explain how the cooling rate of magma affects the texture of igneous
rock.
![Page 2: Igneous Rocks Explain how the cooling rate of magma affects the texture of igneous rock](https://reader033.vdocuments.us/reader033/viewer/2022051214/56649f005503460f94c15b45/html5/thumbnails/2.jpg)
Igneous Rocks
• Igneous Rocks • Igneous is Latin for FIRE• Forms when molten
rock cools and hardens• Can form deep in Earth
or on surface
![Page 3: Igneous Rocks Explain how the cooling rate of magma affects the texture of igneous rock](https://reader033.vdocuments.us/reader033/viewer/2022051214/56649f005503460f94c15b45/html5/thumbnails/3.jpg)
Igneous Rocks
• Two types:– Intrusive igneous rock • Rock formed from cool
and solidification of magma beneath Earth’s surface
• Slow cooling magma = large mineral crystals
• Large crystals = course (rough) grained rock
![Page 4: Igneous Rocks Explain how the cooling rate of magma affects the texture of igneous rock](https://reader033.vdocuments.us/reader033/viewer/2022051214/56649f005503460f94c15b45/html5/thumbnails/4.jpg)
Igneous Rocks
– Extrusive igneous rock • Rock that forms as result of volcanic activity or cools on Earth’s surface
• Fast cooling = small mineral crystals
• Small crystals = fine (smooth) grained rock
![Page 5: Igneous Rocks Explain how the cooling rate of magma affects the texture of igneous rock](https://reader033.vdocuments.us/reader033/viewer/2022051214/56649f005503460f94c15b45/html5/thumbnails/5.jpg)
![Page 6: Igneous Rocks Explain how the cooling rate of magma affects the texture of igneous rock](https://reader033.vdocuments.us/reader033/viewer/2022051214/56649f005503460f94c15b45/html5/thumbnails/6.jpg)
Igneous Rocks
• Summary:– What is an igneous rock?– What is the difference between extrusive and
intrusive igneous rocks?
![Page 7: Igneous Rocks Explain how the cooling rate of magma affects the texture of igneous rock](https://reader033.vdocuments.us/reader033/viewer/2022051214/56649f005503460f94c15b45/html5/thumbnails/7.jpg)
29 November 2011
Objective: Explain how the cooling rate of magma affects the texture of igneous rock.
OUTROWhat’s the difference between intrusive and extrusive?