Dating of dinosaur fossils Free dirty adult dating chat without signup

There are two main types of dating: Relative Dating The majority of the time fossils are dated using relative dating techniques.

Using relative dating the fossil is compared to something for which the age is already known.

Dating of dinosaur fossils dating a woman two year older

Replacement and Recrystallization - Replacement occurs when the shell, bone or other tissue is replaced with another mineral.

A shell is said to be recrystallized when the original skeletal compounds are still present but in a different crystal form, as from aragonite to calcite.

For example if you have a fossil trilobite and it was found in the Wheeler Formation which has been dated to approximately 507 million years old, you know the fossil in it is approximately 507 million years old.

Scientists use certain types of fossils referred to as index fossils to assist in relative dating via correlation.

Absolute Dating Absolute dating is used to determine a precise age of a fossil through radiometric methods.

This uses radioactive minerals in the rocks and fossils almost like a geological clock.

This type of preservation is common among plant fossils.

Unaltered Preservation - The original material of the organism has not been changed to another substance.

There are two main types of fossils; body and trace. The absence of heat or compression which might destroy the fossil Fossils are most often preserved within sediments that were deposited in water, such as wetlands, river basins, or the ocean.

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