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Solar Nebula Hypothesis
1
The Geologic Time Scale
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The Geologic “Clock”
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The Hadean Eon - Accretion, Melting and Differentiation
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The Mars-size (Theia) Impactor Theory
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Our Moon
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Hadean “Outgassing” to form Atmosphere and Oceans
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Late-Heavy Bombardment - the Moon
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Archean Eon - the time of crust-building
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Modern Plate Tectonics
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Modern Subduction Zone
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Ancient Subduction
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Archean Greenstone Belts
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Komatiite - an olivine lava with spinifex texture
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Hawaiian Pillow Lavas
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Metasedimentary Greenstones
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Acasta Gneiss from Canadian Shield - 4 Ga
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