Study Guide for Midterm -- To be combined with quiz 1 review
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| Types of Textures | Phaneritic, Aphanitic, Porphyritic, Glassy, Vesicular | |
| Types of Compositions | Felsic, Intermediate, Mafic | |
| Metamorphic Rock Types | Foliated, Non-Foliated | |
| What is the chemical composition of quartz, obsidian, and chert? | SiO2, or Silica | |
| What element makes dolomite different from other calcium carbonates? | Magnesium | |
| How many flat sides can be found on a rock per direction of cleavage? | 2 | |
| What is a felsic rock? | An igneous rock that is typically light-colored as a result of a mostly silicate composition. | |
| What is an intermediate rock? | An igneous rock that is light to dark gray and composed of between 53-65% silica | |
| What is a mafic rock? | A dark colored igneous rock composed of very little silica | |
| What does texture imply? | Cooling history | |
| Chemical Weathering | Dissolution of Rocks by Water | |
| Physical Erosion | Degradation of Rocks by Wind and Water |
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