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All About Rocks
Help you to remember stuff about rocks/geology
Term | Definition |
---|---|
Parent Rocks | The original rock from which the product rock is formed. Ex:Limestone --> Marble |
Banded-Foliated Rocks | Rocks that have lines, or bands. Ex:Sandstone |
Nonbanded-Nonfoliated Rocks | Rocks that have no lines or bands. Ex:Shale |
Regional Metamorphism | Rocks are buried were there is heat and pressure pushing down on them. |
Metamorphic Rock | A new rock that has been formed from existing rocks, heat and pressure. |
Lithification | When sediments are compact and under pressure. |
Cementation | The binding or “gluing” together of rocks by cement. |
Clastic(Classic) Sedimentary Rocks | When pieces of rocks, minerals and organic materials are cemented together. Ex:Shale |
Organic Sedimentary Rocks | Form from the remains of plants and animals. Ex:Coal |
Chemical Sedimentary Rocks | Forms when water is rich with dissolved minerals. Ex:Salt |
Sedimentary Rocks | When layers of material such as sand, hardens over time. Ex:Sandstone |
Intrusive Rocks | Form Inside the Earth, cool Slowly and the crystals are large. Ex:Granite |
Extrusive Rocks | Form outside of the Earths surface, cools fast and the crystals are small. Ex:Obsidian |