Ch 12outline

Historical Geology Chapter 12 Geologic Time

Determining the Age of the Earth ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object]

Discovering Earth’s History ,[object Object],[object Object],[object Object],[object Object]

A Brief History of Geology ,[object Object],[object Object],[object Object],[object Object]

Relative Dating: Key Principles ,[object Object],[object Object]

Distance is 12 miles between these two rock units

Distance is 17 miles between these two rock units

Fossils: Evidence of Past Life ,[object Object],[object Object]

Fossil Formation ,[object Object],[object Object]

Indirect Evidence ,[object Object]

Fossils and Correlation ,[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object]

Interpreting Environments ,[object Object],[object Object]

Dating with Radioactivity ,[object Object],[object Object]

Radioactivity ,[object Object],[object Object],[object Object],[object Object],[object Object]

Half - life ,[object Object],[object Object],[object Object]

Radiometric Dating ,[object Object],[object Object]

Dating with Carbon – 14 ,[object Object],[object Object]

Importance of Radiometric Dating ,[object Object],[object Object]

Other Dating Methods Used ,[object Object],[object Object]

The Geologic Time Scale ,[object Object]

Structure of the Time Scale ,[object Object],[object Object],[object Object],[object Object],[object Object]

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