| A | B |
|---|
| igneous | Latin for "Fire" |
| The type of IGNEOUS rock that forms depends on: | the the COMPOSTION of the magma and teh AMOUNT OF TIME it takes the magma to cool |
| 3 ways MAGMA forms | When rock is HEATED, when PRESSURE IS RELEASED, when rock CHANGES COMPOSITION |
| The amount of TIME IT TAKES MAGMA TO COOL determines | the TEXTURE of the igneous rock |
| The LONGER it takes the magma to cool | the COARSER the texture |
| The LESS time it takes magma to cool | the FINER the texture |
| felsic rock | LIGHT colored igneous rock rich in aluminimum, potassiou, solium, and silicon |
| mafic rock | DARK colored igneous rock rich in calcium, iron, magnesium and POOR in silicon |
| igneous rock is located | above AND below Earth's surfacce |
| INtrusive igneous rock | rock fromed from COOLING and solidification of magma BENEATH Earth's surface |
| INtrusive igneous rock is usually | coarse and has large crystals |
| intrusive igneous rocks are named for | size and shape |
| EXtrusive igneous rock | rock that erupts or forms as a result of volcanic activity AT ot NEAR the Earth's SURFACE |
| How does new ocean floor form? | Lava that flows from fissures or cracks on the ocean floor cools and hardens |
| Igneous ROCK forms | when magma cools and hardens |
| The TEXTURE od igneous rock is determined by | the rate at which the rock cools |
| SHAPES of common igneous intrusive rocks | batholiths, stocks, sills, dikes |
