History of the Earth How did we get here?
From Apollo 17
Physical Geology Mt. St. Helens
Historical Geology
History is Written in the Rocks
Lithosphere
Hydrosphere
Sunrise from the Shuttle Atmosphere
Biosphere
Cretaceous Connections
Geology ABC’s Minerals (Geologic Alphabet) Rocks & Fossils (Geologic Language) Strata (Layers) (Pages of the Book of Time)
Rusting of the Earth Snowball Earth
Origins of Life
Basilosaurus
Titanis & Hipparian
Why Study Historical Geology? Helps us understand our place in space and time Puts current environmental issues in context “Past is the Key to the Future” - Helps up predict impacts and find important resources
Geologic Time Scale