Fossil dating techniques
The range of conventional radiocarbon dating is 30,000 to 40,000 years.
With sensitive instrumentation, this range can be extended to 70,000 years.
Absolute dating methods are carried out in a laboratory.
If you want the rundown on how we learned to do this, I recommend Simon Winchester's highly readable nonfiction book The Map that Changed the Worldwhich is about the birth of stratigraphy as a field of study and how we came to know that our Earth is billions of years old. What are two major methods of dating artifacts or fossils. Would you like to make it the primary and merge this question into it. Choose your answers to the questions and click 'Next' to see the next set of questions.Similarly, pollen grains released by seed-bearing plants became fossilized in rock layers.If a certain kind of pollen is found in an archaeological site, scientists can check when the plant that produced that pollen lived to determine the relative age of the site.The most widely used and accepted form of absolute dating is radioactive decay dating. Radioactive decay refers to the process in which a radioactive form of an element is converted into a nonradioactive product at a regular rate.The nucleus of every radioactive element (such as radium and uranium) spontaneously disintegrates over time, transforming itself into the nucleus of an atom of a different element.