Rocks The Geologic Dictionary
Metamorphic Rocks Rocks Under Stress
Metamorphism Recrystalization Solid-State Chemical Reactions No Melting
Parent Rock Composition Temperature Pressure Fluids Factors that affect Metamorphism
Parent Rock Composition Temperature Pressure Fluids Factors that affect Metamorphism
Parent Rock Composition Temperature Pressure Fluids Factors that affect Metamorphism Lithostatic pressure Directional Pressure
Directed Pressure Results in: Foliation
Foliation Under a Microscope
Metamorphic Grade
Parent Rock Composition Temperature Pressure Fluids Factors that affect Metamorphism
Metamorphic Rocks - Identification
Metamorphic Textures (All Crystalline) Foliated Nonfoliated
Foliation
Composition - Index Minerals
Mineral Composition - Geothermometers Rock Forms: °C Staurolite - Forms °C Garnet - Forms °C Muscovite - Forms °C
Foliated Metamorphic Rocks Parent Rock - Shale Slate (Low Grade) Schist (Medium Grade)
Foliated Rocks (cont.) Felsic Parent Rock Gneiss (High Grade) Migmatite (Very High Grade)
NonFoliated Rocks Parent Rock Limestone Marble (Low to High Grade)
Nonfoliated Rocks (cont.) Quartzite Metacoglomerate Parent Rocks Sandstone Conglomerate
Metamorphic Rocks - Interpretation
Metamorphic Environments = Metamorphic Facies
Metamorphic Rock “Translations” Chemical Composition Mineral Composition Foliation Parent Rock (Protolith) T & P of Formation (Depth / Facies)