Explain the process of thermoluminescence dating

16-Mar-2016 22:36 by 2 Comments

Explain the process of thermoluminescence dating

This method is based on the fact that when a material is heated or exposed to sunlight, electrons are released and some of them are trapped inside the item.

It is the only method that can be used to date rocks, pottery and minerals for dates that are approximately between 300 to 10,000 years old.Similarly, pollen grains released by seed-bearing plants became fossilized in rock layers.If a certain kind of pollen is found in an archaeological site, scientists can check when the plant that produced that pollen lived to determine the relative age of the site.The most widely used and accepted form of absolute dating is radioactive decay dating. Radioactive decay refers to the process in which a radioactive form of an element is converted into a nonradioactive product at a regular rate.The nucleus of every radioactive element (such as radium and uranium) spontaneously disintegrates over time, transforming itself into the nucleus of an atom of a different element.Absolute dating methods are used to determine an actual date in years for the age of an object.

Before the advent of absolute dating methods in the twentieth century, nearly all dating was relative.Today, many different radioactive elements have been used, but the most famous absolute dating method is radiocarbon dating, which uses the isotope C.This isotope, which can be found in organic materials and can be used only to date organic materials, has been incorrectly used by many to make dating assumptions for non-organic material such as stone buildings.It is also important not to forget that throughout the history of humankind any discovery that shakes the status quo is always under attack until it becomes established, and we are in an era where many of the things that we once considered certain will become errors of our past.Dating techniques are procedures used by scientists to determine the age of an object or a series of events.This process frees energy in the form of light, which can be measured.