radiocarbon dating

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“Willard Libby (a scientist who won the Nobel Prize inn Chemistry) developed radiocarbon dating as a method to measure radioactivity. Carbon-14 is a weakly radioactive isotope of Carbon; also known as radio carbon. Radiocarbon dating cannot be applied to metals, only to organic and selected inorganic materials. The three principal radiocarbon dating methods are: (1) gas proportional counting, (2) liquid scintillation counting and (3) accelerator mass spectrometry.” (Beta Analytic). Radiocarbon dating is the only scientific method to revolutionize man’s understanding of events that occurred in the past and also in the present. It is used to prove and disprove theories in archaeology and other sciences. (Beta Analytic)

Carbon-14 is unstable and its atoms decay into nitrogen atoms. (Biblical Chronologist). Willard Libby was the first person to measure the half life of radiocarbon, or carbon-14, recording it as 5730 years. When they are alive, plants absorb and digest carbon-14 from carbon dioxide.(Beta Analytic). They absorb their C-atoms via the foods that they consume. The absorption of the atoms stops when the organism dies. (Biblical Chronologist). Their carbon-14 content decreases gradually once they die. The rate at which the decrease occurs is determined by the law of radioactive decay. The amount of carbon-14 that is left in an organism after its death can be used to tell how old it is, its age. (Beta Analytic)

Gas proportional counting.

This method counts the beta particles (products of radiocarbon decay) that a particle or organism releases. Measurement in gas proportional counters occurs after the carbon has been converted into carbon dioxide. (Beta Analytic)

Liquid scintillation counting

In this method, a scintill...

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...licalchronologist.org/answers/c14_method.php

• Richter, A.M. 2009. Carbon dating and Archaeology: The RadioActive Clock (consulted August 2009): http://archive.cyark.org/carbon-dating-and-archaeology-blog?gclid=Cljjv_GskL0CFa3lTAodZ1oAfw

• Ojha, S.S. 2013. AMS- A Novel Method of Dating in Archaeology

• Chronological Methods 8- Radiocarbon Dating.: http://archserve.id.ucsb.edu/courses/anth/fagan/anth3/Courseware/Chronology/08_Radiocarbon_Dating.html

• Toothman. J. How has radiocarbon dating changed archaeology?. http://science.howstuffworks.com/environmental/earth/geology/radiocarbon-dating-change-archaeology.htm

• Hirst. K. k. stratigraphy and Seriation. Timing is Everything- A Short Coiurse in Archaeological Dating. http://archaeology.about.com/cs/datingtechniques/a/timing.htm

• Higham. T. Petchey. F. C-14 Dating. http://www.c14dating.com/applic.html

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