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Metamorphic rocks<br />
Definition<br />Metamorphic rocks: rocks that have been modified by heat, pressure and chemical process .<br />Usually dee...
slate<br />
shale<br />
Slate vs. shale<br />Slate and shale look similar, yet are different.<br />
Gneiss (nice!)<br />
granite<br />
marble<br />
limestone<br />
quartzite<br />
sandstone<br />
Specific changes<br />Large areas of rock are under intense heat and pressure.<br />Rocks are already under high temperatu...
Foliation	<br />When shale undergoes intense pressure, the minerals are formed into parallel layers.<br />This process is ...
phyllite<br />
Contact metamorphism<br />Hot magma forces its way into overlying rock.<br />Hot liquids and gases from magma also enter r...
Rock cycle<br />1. igneous rocks are formed from magma<br />2. Igneous rocks erode (wear out) by weathering, forming sedim...
Rock cycle<br />
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Es9

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Transcript of "Es9"

  1. 1. Metamorphic rocks<br />
  2. 2. Definition<br />Metamorphic rocks: rocks that have been modified by heat, pressure and chemical process .<br />Usually deep within the earth<br />
  3. 3. slate<br />
  4. 4. shale<br />
  5. 5. Slate vs. shale<br />Slate and shale look similar, yet are different.<br />
  6. 6. Gneiss (nice!)<br />
  7. 7. granite<br />
  8. 8. marble<br />
  9. 9. limestone<br />
  10. 10. quartzite<br />
  11. 11. sandstone<br />
  12. 12. Specific changes<br />Large areas of rock are under intense heat and pressure.<br />Rocks are already under high temperature. <br />Friction of moving layers adds heat. <br />
  13. 13. Foliation <br />When shale undergoes intense pressure, the minerals are formed into parallel layers.<br />This process is called foliation. <br />Shale -&gt; slate -&gt; phyllite -&gt; schist <br />
  14. 14. phyllite<br />
  15. 15.
  16. 16. Contact metamorphism<br />Hot magma forces its way into overlying rock.<br />Hot liquids and gases from magma also enter rock and react with its minerals. <br />
  17. 17.
  18. 18. Rock cycle<br />1. igneous rocks are formed from magma<br />2. Igneous rocks erode (wear out) by weathering, forming sediments.<br />3. Sediments form sedimentary rocks.<br />4. If sedimentary rocks are buried deep and are involved in movements of earth’s crust, they become metamorphic rocks. <br />5. If rocks are forced deep enough, they reach such high temperatures that they become magma. <br />
  19. 19. Rock cycle<br />
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