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Unit3: Lithosphere
Question | Answer |
---|---|
What is a mineral? What are the three ways minerals can form? | A mineral is a naturally-occurring inorganic, solid substance. It can form from the cooling and crystallization of magma, precipitation from a supersaturated solution, and evaporation of a supersaturated solution. |
Most abundant mineral group on Earth | Silicates |
What is an "ore?" A mineral that... | Contains a useful substance and that can be mined at a profit |
Define Reclamation | Returning mined land to its original condition as best as possible |
How are Igneous rocks formed? | From the crystallization of magma |
Three factors that affect magma formation... | Temperature Pressure Water content |
Provide an example of an Igneous rock | Granite |
Rocks that contain diamonds are called... | Kimberlites |
Rocks that contain gemstones like garnet are called... | Pegmamites |
What is Quartz? | Most abundant minerals in rocks, Two rocks in which Quartz can be found are Igneous and Sedimentary rocks |
What color is olivine? Name a state in which the beaches can be composed of eroded olivine. | Green and Hawaii |
What are sediments? | Pieces of solid material deposited on Earth's surface |
Name the types of sediments. (in order from least to greatest) | Silt, Clay, Sand, Pebbles, Gravel |
Describe the process of weathering | Big pieces of of rock are broken down into smaller pieces |
Describe eroding | Sediments are removed to another location |
What do most Sedimentary rocks contain | Fossils |
How do Metamorphic rocks form? | When high temperatures and pressure combine to alter the texture, mineralogy (chemical composition of a rock), without melting it |
Provide an example of a Metamorphic rock | Marble |