Details

Title: Env. Geo.

Description: Metamorphic Rocks

Total Flash Cards: 6

Created: 02/26/2006 12:18:53

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Additional Geology Flashcards

Cards in this set:

Term
What is Metamorphism?
 Definition
*Means to change form
*Process that creates a metamorphic from high temps and/or pressure.
Term
What is a metamorphic rock?
 Definition
A rock that is changed by high temps and/or pressures.
*No Melting
*Parent rock is the one that got metamorphized.
Term
FOLIATED vs. NON-FOLIATED
What is foliation?
 Definition
*minerals that are alligned parallel to each other.
-OR-
*Rock is banded with alternating layers of light & dark colored matierials.
Term
How does Foliation form?
 Definition
Rocks will experience differential stress.
-More stress/pressre in one direction

(ROX)<------ turns to this ()<------

This causes elongated and platy matierial.
Term
CLASSIFYING FOLIATED META. ROCKS
When grainsize increases its a result from....?
 Definition
As grainsize increases----->
Its a result from temperature increase
Term
When does metamorphism occur?
 Definition
It occurs when rocks experience high Temp &/or Pressure
This happens when:
*Rocks are buried
*During mountain Building
*as techtonic plates interact.