March 9, 2007, Newsletter Issue #130: Relative Dating

Tip of the Week

Relative age dating is how geologists determine when an event occurred (such as deposition of a rock layer, or appearance of a fault) in relation to other events - without necessarily having an actual age in years.

Hereīs an example of relative dating: if you have two siblings, you can describe them as older than you or younger than you, without actually giving their ages. Thatīs relative dating.

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