Compare and contrast relative and absolute dating

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In historical geology, the primary methods of absolute dating involve using the radioactive decay of elements trapped in rocks or minerals, including isotope systems from very young (radiocarbon dating with Radiometric dating is based on the known and constant rate of decay of radioactive isotopes into their radiogenic daughter isotopes.

Particular isotopes are suitable for different applications due to the type of atoms present in the mineral or other material and its approximate age.

Dating is a technique used in archeology to ascertain the age of artifacts, fossils and other items considered to be valuable by archeologists.

There are many methods employed by these scientists, interested in the old, to get to know the age of items.

Reference USGS (2001) Relative dating methods predate radiometric and are considered less precise.

Two broad categories of classification methods are relative dating and absolute dating.

While, Absolute dating involves the use of isotopes and radioctive elements (radioactivity) and also the study and relation of meteorites and moon rocks, which eventually gives the actual/absolute age of the earth.

The meteorites and moon rocks are believed to have formed virtually at the same time with earth and are therefore, considered to be of the same age as earth.

Techniques include tree rings in timbers, radiocarbon dating of wood or bones, and trapped charge dating methods such as thermoluminescence dating of glazed ceramics.

Coins found in excavations may have their production date written on them, or there may be written records describing the coin and when it was used, allowing the site to be associated with a particular calendar year.

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