Thermoluminescence testing also dates items to the last time they were heated. The technique often cannot pinpoint the date of an archeological site better than historic records, but is highly effective for precise dates when calibrated with other dating techniques such as tree-ring dating. Email Email is required. You will also be able to: Other radiometric dating techniques are available for earlier periods.
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Radiometric Dating with Index Fossils
Using these methods, we've even been able to figure out the age of the Earth itself: Many of the rock faces we look at were created layer by layer as sediments settled on a sea or lake bed. Log in or sign up to add this lesson to a Custom Course. Down to Earth Fifth edition. In this article we shall discuss how fossils can be used for the purposes of absolute dating. An ideal reference fossil would be an animal or plant that only lived for a short time, but yet is found all over.