unit 1 geology1 text a the earth1 text b science of the earth11 unit 2 age of the earth15 text a geologic time15 text b geologic time scale27 unit 3 exodynamic geology31 text a weathering and erosion31 text b fluvial process42 unit 4 minerals47 text a introduction to minerals47 text b important minerals58 unit 5 crystalline rocks62 text a igneous rocks62 text b metamorphic rocks72 unit 6 sedimentation76 text a sediment76 text b sedimentary rocks85 unit 7 economic geology89 text a ore deit89 text b petroleum98 unit 8 rock deformation102 text a folds102 text b faults112 appendix a glossary118 appendix b keys to exercises131 reference149
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