PETROGRAPHY AND PETROLOGY

ERSC 3P21 - Lecture Outline

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INTRODUCTION

(The wallpaper comprising the background image is a mosaic of lunar basalt 12002 from the Apollo collection, photographed by the author, when the collection was on loan to the Earth Sciences Department.)

Objectives
Petrography, Petrology, Petrogenesis

Igneous Rocks

IGNEOUS ROCKS 1


Definition
Generalities

IGNEOUS ROCKS 2


Nomenclature and Classification
Silica Gradation/Colour Gradation/Saturation Concept
Chemistry
Modal Analysis
Normative Analysis
Variation Diagrams

IGNEOUS ROCKS 3


Fractionation


Phase Chemistry and Phase Diagrams

PHASE DIAGRAMS - INTRODUCTION

·       Introduction

·       Unary Systems

·       Phase Rule


Binary diagrams – BINARY DIAGRAMS - INTRODUCTION

Binary System #1 - Simple system (Di-An)

            An – Di BINARY SYSTEM

Binary System # 2 - Congruently Melting Intermediate Compound
Binary System # 3 - No Solid Solution, Incongruently Melting Compound (Fo-Qtz)

            Fo – Si BINARY SYSTEM

Binary System # 4 - Solid Solution (Ab-An)

            AbAn BINARY SYSTEM

Binary System #5 - Ab-Or

            Ab – Or BINARY SYSTEM


Ternary Systems

            TERNARY PHASE DIAGRAMS I

TERNARY PHASE DIAGRAMS II

ISOTHERMAL SECTIONS

Ternary System #1 - Simple Ternary System (An-Wo-Sp)

            An-Wo-Sp TERNARY SYSTEM

Ternary System #2 - Incongruent Melting (Fo-Si-An)

            Fo-Si-An TERNARY SYSTEM

Ternary System # 3 - Solid Solution (Di-Ab-An)

            Di-Ab-An TERNARY SYSTEM

 

Lime-Silica-Corundum TERNARY SYSTEM

Metamorphism

METAMORPHIC ROCKS 1

METAMORPHIC ROCKS 2

METAMORPHIC ROCKS 3


Assignments

  1. Binary Diagrams - simple and complex
  2. Ternary Diagrams - simple
  3. Ternary Diagrams - complex

 


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