Absolute dating: Provides a specific age eg 20 million years ago, Only works in igneous rocks or volcanic ash layers, Uses radioactive decay of certain isotopes , M&Ms activity, Uranium decays into Lead, Half-life of isotopes, Zircon crystals, Relative dating: Provides the order of events, Law of superposition, Law of cross-cutting, Fault cuts through layers, Igneous intrusion cuts through layers, ,

Absolute vs Relative dating

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