Start Dating methods geochronology and landscape evolution

Dating methods geochronology and landscape evolution

Biostratigraphy does not of time at which that fossil assemblage is known to have coexisted.

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A number of radioactive isotopes are used for this purpose, and depending on the rate of decay, are used for dating different geological periods.

More slowly decaying isotopes are useful for longer periods of time, but less accurate in absolute years.

The science of geochronology is the prime tool used in the discipline of chronostratigraphy, which attempts to derive absolute age dates for all fossil assemblages and determine the geologic history of the Earth and extraterrestrial bodies.

By measuring the amount of Radioactive decay of a radioactive isotope with a known half-life, geologists can establish the absolute age of the parent material.

These deposits are generated by processes that may obscure some observational...