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METAMORPHIC ROCKS
WHAT IS A METAMORPHIC ROCK? <ul><li>Meta – change; morph - form </li></ul><ul><li>Any  rock that has changed … </li></ul><...
WHAT ARE TYPES OF METAMORPHISM? <ul><li>Contact metamorphism </li></ul><ul><ul><li>Small, local areas </li></ul></ul><ul><...
HOW DO METAMORPHIC ROCKS FORM? <ul><li>Heat  </li></ul><ul><ul><li>From the mantle </li></ul></ul><ul><li>Pressure </li></...
HOW ARE METAMORPHIC ROCKS CLASSIFIED? <ul><li>Foliated </li></ul><ul><ul><li>AKA banded, layered </li></ul></ul><ul><ul><l...
 
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Metamorphic rocks

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Transcript of "Metamorphic rocks"

  1. 1. METAMORPHIC ROCKS
  2. 2. WHAT IS A METAMORPHIC ROCK? <ul><li>Meta – change; morph - form </li></ul><ul><li>Any rock that has changed … </li></ul><ul><ul><li>Structure </li></ul></ul><ul><ul><li>Mineral alignment </li></ul></ul><ul><ul><li>Mineral chemistry </li></ul></ul>
  3. 3. WHAT ARE TYPES OF METAMORPHISM? <ul><li>Contact metamorphism </li></ul><ul><ul><li>Small, local areas </li></ul></ul><ul><li>Regional metamorphism </li></ul><ul><ul><li>Large areas </li></ul></ul>
  4. 4. HOW DO METAMORPHIC ROCKS FORM? <ul><li>Heat </li></ul><ul><ul><li>From the mantle </li></ul></ul><ul><li>Pressure </li></ul><ul><ul><li>From the rock layers above </li></ul></ul><ul><li>Fluids </li></ul><ul><ul><li>Water can create liquid minerals </li></ul></ul><ul><ul><li>Can change a rocks chemistry </li></ul></ul><ul><li>Strain </li></ul><ul><ul><li>Due to the force of stress </li></ul></ul><ul><ul><li>Fault zones, for example </li></ul></ul>
  5. 5. HOW ARE METAMORPHIC ROCKS CLASSIFIED? <ul><li>Foliated </li></ul><ul><ul><li>AKA banded, layered </li></ul></ul><ul><ul><li>Gneiss, slate, schist </li></ul></ul><ul><li>Nonfoliated </li></ul><ul><ul><li>AKA nonbanded, nonlayered </li></ul></ul><ul><ul><li>Marble, quartzite </li></ul></ul>
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