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Geomorphology Rocks
Grade 10 Geography
Term | Definition |
---|---|
Igneous | a type of rock that forms from the cooling of molten rock at or below the surface |
Sedimentary | a type of rock that forms from compressed or cemented layers of sediment |
Metamorphic | a type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions. |
Batholith | A mass of rock formed when a large body of magma cools inside the crust |
Laccolith | A mushroom-shaped mass of rock formed when a large body of magma cools inside the crust |
Lopolith | A large, bowl-shaped body of igneous rock intruded between layers of sedimentary rock. |
Dyke | A slab of volcanic rock formed when magma intrudes vertically through bedding planes |
Butte | A narrow flat topped rock or hill formation with steep sides. |
Mesa | A flat-topped mountain or hill. It is a wide, flat, elevated landform with steep sides. |
Magma | A molten mixture of rock-forming substances, gases, and water from the mantle |
Lava | Magma that reaches Earth's surface |