Download Metamorphic Rocks

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript
Metamorphic Rocks
Metamorphic rocks have
been changed from a
pre-existing rock.
Caused by extreme heat
and/or pressure.
Regional Metamorphism
Caused by extreme
pressure and heat.
Happens over wide
“regions”. (areas)
Contact Metamorphism
Caused by DIRECT
contact with extreme
heat.
The texture of a
metamorphic rock is called
foliated. The grain is in bands.
Distorted Structure
Types of Foliation:
Gneissic Foliation- minerals
are squished into bands.
“Zebra Stripes”
Nonfoliated - Metamorphic Rocks are
rocks that are not arranged in bands.
Example- Marble and Quartzite
Marble
Banding vs. Layers
Bands
Layers
Related documents