Relative dating and absolute dating definition


24-Feb-2016 17:52

The basis for assuming that like fossils indicate contemporary formation is faunal succession.However, as previously noted, times of volcanism and metamorphism, which are both critical parts of global processes, cannot be correlated by fossil content.Correlating two separated outcrops means establishing that they share certain characteristics indicative of contemporary formation.The most useful indication of time equivalence is similar fossil content, provided of course that such remains are present.Before this, archaeologists and scientists relied on deductive dating methods, such as comparing rock strata formations in different regions.Chronometric dating has advanced since the 1970s, allowing far more accurate dating of specimens.The Wheeler Formation has been previously dated to approximately 507 million year old, so we know the trilobite is also about 507 million years old.But, how can we determine how old a rock formation is, if it hasn’t previously been dated?

Scientists first developed absolute dating techniques at the end of the 19th century.

Geochronology is the science of dating and determining the time sequence of events in the history of the Earth.