Advantages of thermoluminescence dating

Absolute dating provides a numerical age or range in contrast with relative dating which places events in order without any measure of the age between events.

In archaeology, absolute dating is usually based on the physical, chemical, and life properties of the materials of artifacts, buildings, or other items that have been modified by humans and by historical associations with materials with known dates (coins and written history).

K–Ar dating was used to calibrate the geomagnetic polarity time scale.

Thermoluminescence testing also dates items to the last time they were heated.

Potassium is common in rocks and minerals, allowing many samples of geochronological or archeological interest to be dated.

After yet another 5,730 years only one-eighth will be left.

By measuring the carbon-14 in organic material, scientists can determine the date of death of the organic matter in an artifact or ecofact.

Thus dating that particular tree does not necessarily indicate when the fire burned or the structure was built.

For this reason, many archaeologists prefer to use samples from short-lived plants for radiocarbon dating.

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