Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Metamorphic rocks

1,173 views

Published on

Published in: Technology, Education
  • Be the first to comment

  • Be the first to like this

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>

×