Solar Nebula Hypothesis

1

The Geologic Time Scale

2

The Geologic “Clock”

3

The Hadean Eon - Accretion, Melting and Differentiation

4

Our Moon

5

The Mars-size (Theia) Impactor Theory

6

Hadean “Outgassing” to form Atmosphere and Oceans

7

Late-Heavy Bombardment - the Moon

8

Archean Eon - the time of crust-building

9

Modern Plate Tectonics

10

Modern Subduction Zone

11

Ancient Subduction

12

Archean Greenstone Belts

13

Komatiite - an olivine lava with spinifex texture

14

Hawaiian Pillow Lavas

15

Metasedimentary Greenstones

16

Acasta Gneiss from Canadian Shield - 4 Ga

17