Quiz on absolute dating
These specific required conditions explain why fossils are so rare. : The Making of the Biological Past Response: Since fossilization requires very unique circumstances, fossils are very rare.
As a result, fossils do not necessarily provide a complete representation of the past.
Non-radiometric methods utilize other processes to assess a date.
Non-radiometric methods include dendrochronology, or tree-ring dating, amino acid dating, fission track, paleomagnetic dating, electron spin resonance, and luminescence.
Other relative methods include chemical dating, biostratigraphic or faunal dating, and cultural dating.
Chemical dating, such as fluorine dating, compares the relative amounts of absorbed fluorine in bones from the same site.
Relative methods focus on comparison of fossils, strata, or other artifacts to determine which is older and which is younger.
The DNA can then be analyzed to learn more about the organism.
Any living organism can become fossilized, including bacteria, plants, and animals.
Absolute dating uses chemical and physical processes to provide a date range for an object, fossil, or site.
Absolute methods include radiometric and non-radiometric methods.
They do not provide “exact” dates for the materials.