Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors...
-
Upload
rose-barker -
Category
Documents
-
view
215 -
download
0
Transcript of Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors...
![Page 1: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/1.jpg)
Igneous Rocks
![Page 2: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/2.jpg)
•When magma cools and _______, the result is an ________ rock.
•There are _____ factors that affect whether a rock will melt or not.▫Temperature (heating above __________)▫Pressure ▫And presence of _______ in the rock
(adding water).
![Page 3: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/3.jpg)
Partial melting
•This is the process by which different minerals in a rock melt at different ___________.
![Page 4: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/4.jpg)
•The _______ of magma is the reverse of partial melting.
•Chemicals that have a high ___________, crystallize first.
•The crystallization and removal of different minerals from the cooling magma is called __________________.▫They tend to settle at the ______ of magma
chamber.
![Page 5: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/5.jpg)
Textures of Igneous Rocks
•Igneous rocks are classified according to ______ the magma cools and hardens.▫_______ igneous
Cools deep inside the crust▫________ igneous
Cools on the earth’ssurface
![Page 6: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/6.jpg)
Textures of Igneous Rocks• ______-grained
▫Intrusive rocks▫_____, well
developed crystals▫Have a coarse
gained texture▫Cools slowly
• _____ grained▫_____ mineral grains
that cannot be seen by eye.
▫cools rapidly▫Small _______
![Page 7: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/7.jpg)
Other Igneous Rock Texture• Glassy
▫Small % percentage of ______ gases.▫Example ______
• Vesicular texture▫Rapid cooling full of _____ are
called vesicles.▫Example ______
• ________ texture▫Some igneous cools slowly then
quickly as it nears the surface.▫Have a mixture of _____ &
______crystals.▫Example _______
![Page 8: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/8.jpg)
Composition of Igneous Rocks • Determined by chemical ___________.• They are divided into _____ families
▫______ Rock Large proportion on silica, light color Many common rocks
▫_____ Rock Contains lower proportions of silica than felsic
rock Rich in _____ and __________
▫Intermediate Rocks These types of rocks are in between Felsic and
Mafic in their proportions of _______.
![Page 9: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/9.jpg)
Intrusive Rocks
•They form ________.•Intrusions form when ______ intrudes or
enters into the rock masses and then cools.▫______ & stocks▫Laccoliths▫_____ and dikes
![Page 10: Igneous Rocks. When magma cools and _______, the result is an ________ rock. There are _____ factors that affect whether a rock will melt or not. ▫Temperature.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649d9d5503460f94a86528/html5/thumbnails/10.jpg)
Extrusive Rocks
•Igneous rocks that form on the earth’s _______.▫Lava flows▫Lava _______▫Volcanic necks