What is the role of isotopes in radiometric dating

Posted by / 03-Oct-2017 19:12

Geologists analyze geologic time in two different ways: in terms of relative geologic age, and in terms of absolute (or numeric) geologic age.

The combination of these two types of geologic ages makes a complete record of earth's geologic history in terms of the order of events and in terms of how many years ago each event occurred.

Relative geologic age is established, based on such evidence as the order in which layers of sediment are stacked, with the younger layer originally on top.

For example, deep in the Grand Canyon in Arizona, there are places where a layer of rock of Devonian age is right on top of a layer of rock of Cambrian age.

That means that tens of millions of years of geologic time lapsed between those two rock layers forming, and there is no sedimentary rock, no rock record, to record the details of what happened during that geologic time.

For help clarifying this question so that it can be reopened, visit the help center.

The main thing is that it's consistent with other forms of dating.

what is the role of isotopes in radiometric dating-15what is the role of isotopes in radiometric dating-24what is the role of isotopes in radiometric dating-74

One thought on “what is the role of isotopes in radiometric dating”

  1. lassies latex latian latimes latin latina latinas latino latinos laura lauren lbad lbg lea leananswer leather leather-gay-sex leather-teens lee leg legal legs lena leone leotards les lesbain lesbens lesbi lesbia lesbian lesbian) lesbian-men lesbian-pic lesbian-porno lesbians lesbians.