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Rocks: Mineral Mixtures
Understanding Rock Rock-a solid mixture of crystals of  one or more minerals.   -Rocks are very useful.
 RockCycle-The process by which one rock type changes into another.
The Rock Cycle
The Rock Cycle Cont.
Rock Classification Composition-the   minerals a rock is made of. Texture-determined  by the sizes, shapes, and position...
Igneous Rock Igneous  comes from the Latin word  for “fire”. It is made by Temperature,  Pressure, and Composition.
Intrusive Igneous Rock When magma cools beneath the Earth’s surface. It has a coarse- grained texture.
Extrusive Igneous Rock Igneous Rock that forms on the Earth’s surface.
Sedimentary Rock Wind,  water, ice, sunlight, and  gravity all cause rock to weather  into fragments. Erosion is the pro...
 Layers of sediment become compressed  and cemented over time. Dissolved minerals separate out of the  water and form a ...
Categories of Sedimentary           Rocks Clastic-whenrock or mineral fragments, called clasts, stick together.
 Chemical-forms  when minerals crystallize out of a solution (sea water) and become rock.
Organic-form from the remains of animals.
Metamorphic Rock Rockthat forms when the texture and composition of pre-existing rock changes due to heat and pressure.
Origins of Metamorphic Rock The texture can change when the  surroundings change. Most change by pressure that  occurs a...
Metamorphism-when the rock Contact comes in contact with magma.         Metamorphism-when a lot of Regional pressure bui...
Textures of Metamorphic             Rock Foliated         Metamorphic Rock-contains mineral grains that are aligned by pr...
 Non-foliatedMetamorphic Rock-the texture of metamorphic rock which mineral grains show no alignment.
Obj 2 changes rocks undergo over time
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Obj 2 changes rocks undergo over time

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Transcript of "Obj 2 changes rocks undergo over time"

  1. 1. Rocks: Mineral Mixtures
  2. 2. Understanding Rock Rock-a solid mixture of crystals of one or more minerals. -Rocks are very useful.
  3. 3.  RockCycle-The process by which one rock type changes into another.
  4. 4. The Rock Cycle
  5. 5. The Rock Cycle Cont.
  6. 6. Rock Classification Composition-the minerals a rock is made of. Texture-determined by the sizes, shapes, and positions of the grains of which it is made.
  7. 7. Igneous Rock Igneous comes from the Latin word for “fire”. It is made by Temperature, Pressure, and Composition.
  8. 8. Intrusive Igneous Rock When magma cools beneath the Earth’s surface. It has a coarse- grained texture.
  9. 9. Extrusive Igneous Rock Igneous Rock that forms on the Earth’s surface.
  10. 10. Sedimentary Rock Wind, water, ice, sunlight, and gravity all cause rock to weather into fragments. Erosion is the process when rocks fragments are moved.
  11. 11.  Layers of sediment become compressed and cemented over time. Dissolved minerals separate out of the water and form a natural glue that will bind the sediments together. Sedimentary rocks are formed near the Earth’s surface, with little heat and pressure.
  12. 12. Categories of Sedimentary Rocks Clastic-whenrock or mineral fragments, called clasts, stick together.
  13. 13.  Chemical-forms when minerals crystallize out of a solution (sea water) and become rock.
  14. 14. Organic-form from the remains of animals.
  15. 15. Metamorphic Rock Rockthat forms when the texture and composition of pre-existing rock changes due to heat and pressure.
  16. 16. Origins of Metamorphic Rock The texture can change when the surroundings change. Most change by pressure that occurs at depths greater than 2 km (about 6000 ft.) The temperature range is 50 C to 1000 C (122 to 1832 F)
  17. 17. Metamorphism-when the rock Contact comes in contact with magma. Metamorphism-when a lot of Regional pressure builds up in rocks buried in the Earth or when large pieces of the Earth’s crust collide with each other.
  18. 18. Textures of Metamorphic Rock Foliated Metamorphic Rock-contains mineral grains that are aligned by pressure.
  19. 19.  Non-foliatedMetamorphic Rock-the texture of metamorphic rock which mineral grains show no alignment.
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