Unformatted text preview: history. Name the Eons and the major historical significance in Earth’s history of each? How does half-life define the relationship among time, parent and daughter isotopes? Describe the early attempts at dating the Earth’s origin, and what the current best effort suggests. Why are most rock/strata ages based on igneous rocks, not sediments?...
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- Spring '08
- Geology, Radiometric dating, Uranium