absolute dating

geochronology

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June 17, 2026

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Absolute dating, also known as geochronology, is the scientific field dedicated to determining the precise age of Earth's rocks and geological formations. Unlike relative dating, which establishes the sequence of events, absolute dating provides a numerical age, often measured in years.12

This is primarily achieved through radiometric dating, which relies on the predictable decay rates of radioactive isotopes within minerals. By measuring the ratio of parent radioactive atoms to their stable daughter atoms, scientists can calculate the time elapsed since the mineral formed. Common methods include uranium-lead dating, which is highly precise, and carbon-14 dating, used for dating organic materials up to about 60,000 years old. These techniques are crucial for understanding Earth's history, correlating geological events globally, and calibrating the fossil record.1234

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dating
Absolute dating
Although relative ages can generally be established on a local scale, the events recorded in rocks from different locations can be integrated into a picture of regional or global scale only if their sequence in time is firmly established. The time that has…
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Although relative ages can generally be established on a local scale, the events recorded in rocks from different locations can be integrated into a picture of regional or global scale only if their sequence in time is firmly established. The time that has…
Read More

history of Europe
The Metal Ages
New methods of absolute dating, including radiocarbon dating, revolutionized the understanding of this phase in prehistoric Europe. They showed that many supposedly interdependent developments had in fact developed independently and been separated by centuries. The Metal Ages of Europe thus must be understood as indigenous local inventions and…
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New methods of absolute dating, including radiocarbon dating, revolutionized the understanding of this phase in prehistoric Europe. They showed that many supposedly interdependent developments had in fact developed independently and been separated by centuries. The Metal Ages of Europe thus must be understood as indigenous local inventions and…
Read More

dating
Distinctions between relative-age and absolute-age measurements
Precise isotopic ages are called absolute ages, since they date the timing of events not relative to each other but as the time elapsed between a rock-forming event and the present. Absolute dating by means of uranium and lead isotopes has been improved to the point that for rocks 3…
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Precise isotopic ages are called absolute ages, since they date the timing of events not relative to each other but as the time elapsed between a rock-forming event and the present. Absolute dating by means of uranium and lead isotopes has been improved to the point that for rocks 3…
Read More