Petrology Lecture Notes Online

These notes are saved in Adobe Acrobat Portable Document Format (pdf).
 

Introductory Material

Introduction
Rock Names

IUGS Igneous Rock Classification

Using the Camera Scales

Norms

Norm Calculations
Gram Formula Weights
Sample Spreadsheet
Diopside-Hypersthene Sample Spreadsheet

Phase Diagrams

Composition Axes
Binary Phase Diagrams
Some_Binary_Diagrams
The Lever Rule
G-X vs T-X Diagrams
Triangular Graph Paper
Ternary Phase Diagrams
Halide Isothermal Sections

Phase Diagram Implications

Granite System:

Liquidus Diagram at 1 atmosphere
Isothermal Section at 1040°C
Isothermal Section at 1200°C

Igneous Geochemistry

Trace Elements
Equations for Radioactive Decay

Metamorphism

Metamorphism Introduction
Some Mineral Stabilities During Metamorphism
Geologic Pressures
A Steady-State Geothermal Gradient
ACF Metamorphic Facies
CMS Assemblages
CMS Reactions
AFM Diagrams
Frank Spear's paper on animated AFM diagrams

Original material Copyright 2012 John Brady - These notes may be used for non-commercial,
educational purposes without permission.