The most compelling argument for an age of the earth of 4.5 billion years are the large number of independent tests that have been used to confirm this date.

radiometric age dating half life-1

Using these key or index fossils as markers, Smith could identify a particular layer of rock wherever it was exposed.

Because fossils actually record the slow but progressive development of life, scientists use them to identify rocks of the same age throughout the world.

Cross-dating is a technique used to take advantage of consistencies in stratigraphy between parts of a site or different sites, and objects or strata with a known relative chronology.

A specialized form of cross-dating, using animal and plant fossils, is known as biostratigraphy.

Because of the distortions and lies spread by fundamentalists about scientific dating there is a need for a centralized source of information on the topic.

A few examples of such lies are presented at the very bottom of this page.

Trees from the same species, growing in the same area or environment will be exposed to the same conditions, and hence their growth rings will match at the point where their lifecycles overlap.

Earth's oldest living inhabitant "Methuselah" at 4,767 years, has lived more than a millennium longer than any other tree.

The Carbon14 technique has been and continues to be applied and used in many, many different fields including hydrology, atmospheric science, oceanography, geology, palaeoclimatology, archaeology and biomedicine. Isochron methods avoid the problems which can potentially result during radiometric testing.