1. G225 Final Exam Study Guide
Metamorphism – Metasomatism
Contact versus regional; tectonic environments
Textures and rock types
Mineralogy; index minerals; grade
Metamorphic facies; “small” and “large”
Paired belts
Al2SiO5 polymorphs
Reactions; P-T assessment

2. Soil Formation Rock Cycle Ores
Factors; climate,parent material,vegetation,topography,time
Soil orders
Soil profiles; textures; compositions
Eh-ph controls; laterites and bauxites
Clay minerals
Rock Cycle
Ores
Magmatic Cu-Ni-PGE; sulfide immiscibility
Hydrothermal ores; magmatic, meteoric, and sea water origins

3. Mineralogy Igneous Petrology
Silicate mineral classification and atomic structure
Coordination numbers and radius ratio principle
Exsolution
Twinning
Polytypism
Igneous Petrology
Generation of magmas; where and why
Bowen’s Reaction Series
Fractionation trends and mechanisms; source, path, and evolution
Tholeiitic versus calc-alkaline trends
Rock types and textures
Viscosity and gas content
Effects of water

4. Sedimentary Petrology
Sedimentary environments
Weathering; mechanical and chemical
Sediment transport; sorting; maturity
Diagenesis
Rock types and textures
Sedimentary facies
Clastic versus biochemical versus chemical processes
Carbonate Compensation Depth
Limestone
Dolomite
Evaporites
Banded Iron Formations

5. Chemical Weathering Oxidation-reduction pH controls Hydration
Hydrolysis
Carbonation
Clay genesis