Lecture 7
Table of Contents
- Formation of Metamorphic Rocks
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- Why study metamorphic rocks?
- 6.1 What is metamorphism?
- 6.1 What is metamorphism?
- 6.1 What is metamorphism?
- 6.1 What is metamorphism?
- 6.2 What is the role of temperature in metamorphism?
- Drawing of the Onset of Metamorphism
- Drawing of the Onset ofMetamorphism
- Graph: Temperature increasing with Depth
- Intrusion of Magma
- Temperature in Metamorphism
- Heat drives away water and gases
- 6.2 What is the role of temperature in metamorphism?
- 6.2 What is the role of temperature in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.3 What is the role of pressure in metamorphism?
- 6.4 What is the role of fluid in metamorphism?
- 6.4 What is the role of fluid in metamorphism?
- 6.4 What is the role of fluid in metamorphism?
- 6.4 What is the role of fluid in metamorphism?
- 6.4 What is the role of fluid in metamorphism?
- 6.5 Why do metamorphic rocks exist at the surface?
- 6.5 Why do metamorphic rocks exist at the surface?
- 6.5 Why do metamorphic rocks exist at the surface?
- 6.6 How do we know how to determine the stability of minerals?
- 6.6 How do we know how to determine the stability of minerals?
- 6.6 How do we know how to determine the stability of minerals?
- 6.6 How do we know how to determine the stability of minerals?
- 6.7 What were the conditions of metamorphism?
- 6.7 What were the conditions of metamorphism?
- 6.8 How are metamorphic rocks classified?
- 6.8 How are metamorphic rocks classified?
- 6.8 How are metamorphic rocks classified?
- 6.8 How are metamorphic rocks classified?
- 6.8 How are metamorphic rocks classified?
- Metamorphic change in rock
- Progressive change: texture
- Progressive change: mineral
- Progressive change: Grade increases
- Follated Metamorphic Grade
- Rocks without Foliation
- A migmatite
- 6.8 How are metamorphic rocks classified?
- 6.9 What was the rock before it was metamorphosed?
- 6.9 What was the rock before it was metamorphosed?
- 6.9 What was the rock before it was metamorphosed?
- 6.10 Where does metamorphism occur?
- 6.10 Where does metamorphism occur?
- 6.10 Where does metamorphism occur?
- Where does metamorphism occur?
- 6.10 Where does metamorphism occur?
- Hyddrothermal Metamorphism
- 6.10 Where does metamorphism occur?
- 6.10 Where does metamorphism occur?
- 6.10 Where does metamorphism occur?
- 6.10 Where does metamorphism occur?
- 6.10 Where does metamorphism occur?
Text and Images from Slide
6.4 What is the role of fluid in metamorphism?
- Fluids, present in the original rock or introduced from magma or high-temperature dehydration and degassing reactions, create metamorphic rocks with water and gas molecules.
- Metamorphic reactions take place faster and at lower temperature in the presence of water than under dry conditions.
- Movement of fluid during metamorphism delivers some ions and takes others away in solution so that the metamorphic rock is different from the parent rock.