0
Metamorphic rock
Vocabulary  <ul><li>_________- change in rock due to heat and pressure  </li></ul><ul><li>__________- has a banded appeara...
Let us review  <ul><li>We already learned  </li></ul><ul><ul><li>There are three types of rocks </li></ul></ul><ul><ul><ul...
From what materials are metamorphic rocks made? <ul><li>The easy answer is from ALL rocks </li></ul><ul><ul><li>Whether it...
What are the right conditions to form metamorphic rocks?  <ul><li>Heat and pressure </li></ul><ul><ul><li>Therefore metamo...
<ul><li>Metamorphic rocks can change  </li></ul><ul><ul><li>Shape </li></ul></ul><ul><ul><li>Texture  of the original rock...
When do we see metamorphic rock? When the earth’s surface erodes or weathered the metamorphic rock is exposed
How can I tell the difference between metamorphic rocks? <ul><li>Metamorphic rocks are usually harder and more dense  </li...
Foliation vs. Non foliation  <ul><li>A fantastic way to classify metamorphic rock </li></ul><ul><ul><li>Foliation is very ...
Banding  <ul><li>Different minerals give metamorphic rocks a striped appearance </li></ul><ul><ul><li>separated of light a...
Distorted structure  <ul><li>Is folding or bending of rock layers  </li></ul><ul><ul><li>This occurs do to strong Earth fo...
Regional Metamorphism  <ul><li>Makes the most of the metamorphic rock  </li></ul><ul><ul><li>This is caused by the pressur...
Let’s review
Upcoming SlideShare
Loading in...5
×

Metamorphic rock

1,666

Published on

Published in: Technology, Business
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
1,666
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
45
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

Transcript of "Metamorphic rock"

  1. 1. Metamorphic rock
  2. 2. Vocabulary <ul><li>_________- change in rock due to heat and pressure </li></ul><ul><li>__________- has a banded appearance </li></ul><ul><li>__________- does not have a banded appearance </li></ul>Metamorphism foliated non-foliated
  3. 3. Let us review <ul><li>We already learned </li></ul><ul><ul><li>There are three types of rocks </li></ul></ul><ul><ul><ul><li>Igneous rocks- </li></ul></ul></ul><ul><ul><ul><ul><li>Igneous – “rock from fire” </li></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Made by molten rock (magam and lava) that has cooled down </li></ul></ul></ul></ul></ul><ul><ul><ul><li>Sedimentary rocks </li></ul></ul></ul><ul><ul><ul><ul><li>Sedimentary rocks – settled rocks </li></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>Pieces of rocka nd other particles get put together to form rock </li></ul></ul></ul></ul></ul><ul><ul><ul><li>Metamorphic rock </li></ul></ul></ul><ul><ul><ul><ul><li>We shall see……………………….. </li></ul></ul></ul></ul>
  4. 4. From what materials are metamorphic rocks made? <ul><li>The easy answer is from ALL rocks </li></ul><ul><ul><li>Whether it is </li></ul></ul><ul><ul><ul><li>Sedimentary </li></ul></ul></ul><ul><ul><ul><li>Igneous </li></ul></ul></ul><ul><ul><ul><li>Metamorphic </li></ul></ul></ul><ul><ul><li>It is a recrystallization of unmelted </li></ul></ul><ul><ul><li>ALL of them can form into metamorphic rocks under the right conditions </li></ul></ul>
  5. 5. What are the right conditions to form metamorphic rocks? <ul><li>Heat and pressure </li></ul><ul><ul><li>Therefore metamorphic rocks primarily can only be formed deep in the Earth’s crust </li></ul></ul><ul><ul><li>OR </li></ul></ul><ul><ul><li>Contact metamorphism – this is when it forms because it is near a magma flow </li></ul></ul><ul><ul><ul><li>It gets the heat it needs from the magma </li></ul></ul></ul>
  6. 6. <ul><li>Metamorphic rocks can change </li></ul><ul><ul><li>Shape </li></ul></ul><ul><ul><li>Texture of the original rock </li></ul></ul><ul><ul><li>Mineral composition </li></ul></ul><ul><li>Sometimes scientists can sometimes tell What the original rock was and other times they can’t </li></ul><ul><ul><li>The orginal rock is called Parent Rock </li></ul></ul>
  7. 7. When do we see metamorphic rock? When the earth’s surface erodes or weathered the metamorphic rock is exposed
  8. 8. How can I tell the difference between metamorphic rocks? <ul><li>Metamorphic rocks are usually harder and more dense </li></ul><ul><li>Original layers commonly get bent or distorted </li></ul><ul><li>It may also show foliation </li></ul><ul><ul><li>The alignment of minerals or separation of different minerals into flaky layers or light and dark bands </li></ul></ul>
  9. 9. Foliation vs. Non foliation <ul><li>A fantastic way to classify metamorphic rock </li></ul><ul><ul><li>Foliation is very big indicator of metamorphic rocks </li></ul></ul><ul><ul><li>Non- foliation are classified by composition (what they are made up of) </li></ul></ul>
  10. 10. Banding <ul><li>Different minerals give metamorphic rocks a striped appearance </li></ul><ul><ul><li>separated of light and dark minerals into layers </li></ul></ul><ul><ul><ul><li>The more pressure and higher temperature and pressure the thicker the band </li></ul></ul></ul>
  11. 11. Distorted structure <ul><li>Is folding or bending of rock layers </li></ul><ul><ul><li>This occurs do to strong Earth forces </li></ul></ul><ul><ul><li>Causing the rock to have deformed appearance </li></ul></ul>
  12. 12. Regional Metamorphism <ul><li>Makes the most of the metamorphic rock </li></ul><ul><ul><li>This is caused by the pressure that occur with mountain building </li></ul></ul>
  13. 13. Let’s review
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×