Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools...
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Transcript of Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools...
![Page 1: Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools –Buildings –concrete Scientists –Earth & Space history –Fossil.](https://reader037.fdocuments.in/reader037/viewer/2022110400/56649dd55503460f94acd250/html5/thumbnails/1.jpg)
• Rock
• Values of rocks
• Solid mixture of crystal of one or more
minerals
• Human uses– Tools– Buildings– concrete
• Scientists– Earth & Space history– Fossil records
![Page 2: Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools –Buildings –concrete Scientists –Earth & Space history –Fossil.](https://reader037.fdocuments.in/reader037/viewer/2022110400/56649dd55503460f94acd250/html5/thumbnails/2.jpg)
![Page 3: Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools –Buildings –concrete Scientists –Earth & Space history –Fossil.](https://reader037.fdocuments.in/reader037/viewer/2022110400/56649dd55503460f94acd250/html5/thumbnails/3.jpg)
![Page 4: Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools –Buildings –concrete Scientists –Earth & Space history –Fossil.](https://reader037.fdocuments.in/reader037/viewer/2022110400/56649dd55503460f94acd250/html5/thumbnails/4.jpg)
• Composition
• Texture
• The “ingredients” of a rock (what it is made of)
• Determined by the sizes, shapes & positions of the grains of which it is made
![Page 5: Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools –Buildings –concrete Scientists –Earth & Space history –Fossil.](https://reader037.fdocuments.in/reader037/viewer/2022110400/56649dd55503460f94acd250/html5/thumbnails/5.jpg)
Rock OriginsRocks are classified by the way they formed.
Classifying Rocks
![Page 6: Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools –Buildings –concrete Scientists –Earth & Space history –Fossil.](https://reader037.fdocuments.in/reader037/viewer/2022110400/56649dd55503460f94acd250/html5/thumbnails/6.jpg)
• Igneous Rock
• Origins
• Rock that forms when lava cools– Time it takes to cool &
solidify– Changes the rock
• MAGMA Solidifies like water freezing– Temperature range 700 C-
1250C– 3 ways to change magma
• Temperature• Pressure• Composition
![Page 7: Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools –Buildings –concrete Scientists –Earth & Space history –Fossil.](https://reader037.fdocuments.in/reader037/viewer/2022110400/56649dd55503460f94acd250/html5/thumbnails/7.jpg)
Igneous Rocks
Igneous Rock Origins and TexturesThe texture of igneous rock varies according to its origin.
![Page 8: Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools –Buildings –concrete Scientists –Earth & Space history –Fossil.](https://reader037.fdocuments.in/reader037/viewer/2022110400/56649dd55503460f94acd250/html5/thumbnails/8.jpg)
• Igneous Rock Formation
• Intrusive Igneous Rock
• Two types – inside and outside the earth
• When magma cools beneath the Earth’s surface.
• Usually coarse texture• Cools slowly• Named for size and way they intrude
– Plutons (balloon shape formations)– Batholiths– Sills
![Page 9: Rock Values of rocks Solid mixture of crystal of one or more minerals Human uses –Tools –Buildings –concrete Scientists –Earth & Space history –Fossil.](https://reader037.fdocuments.in/reader037/viewer/2022110400/56649dd55503460f94acd250/html5/thumbnails/9.jpg)
• Extrusive Igneous Rock
• Igneous rock that forms on the Earth’s surface
• Forms quickly• Very small crystals or none at all• i.e. lava flow becomes extrusive
igneous rock