Carbon Dating Fractionation

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Isotopic Fractionation of Stable Carbon Isotopes
Radiocarbon dating - Wikipedia
Carbon-14 dating with small accelerators - ScienceDirect
Radiocarbon Dating Principles
PDF Factors Affecting the Accuracy of The Carbon-dating Method . . .
Isotopic Fractionation of Norwegian Materials for . . .
Radiocarbon Dating by AMS « Center for Applied Isotope . . .
PDF 4 .7 . Carbon Contamination and Fractionation
Carbon isotope fractionation in biological material | Nature
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Fractionation during the geochemical transfer of carbon in nature produces variation in the equilibrium distribution of the isotopes of carbon (12C, 13C and 14C) . Craig (1953) first identified that certain biochemical processes alter the equilibrium between the carbon isotopes .
Method of chronological dating using radioactive carbon isotopes . Radiocarbon dating (also referred to as carbon dating or carbon -14 dating ) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon . The method was developed in the late 1940s at the . . .
I Carbon -14 dating with small accelerators (3) (4) (5) Sample of age T: "C^C ratio: R^ = F^fr, "C/^C ratio: R^ = F^fr^ exp(- 778033) , where / is the total sample fractionation which is a product of the natural fractionation / the sample preparation induced fractionation / and the sputtering induced fractionation /,, .
During photosynthesis, plants discriminate against the heavier isotopes of carbon , taking up proportionally less C-13 and C-14 than is available in their carbon reservoir . The result is isotopic fractionation , and it is passed along to the consumers of the plants (the herbivores) and to their consumers (the carnivores) .
Carbon-dating data previously reported (12) attested to the high precision of the carbon-dating and humus- fractionation techniques employed . The mass spectrometer was used as another check on the precision of the humus fractionation techniques; samples of a humic
Isotopic Fractionation of Norwegian Materials for Radiocarbon Dating - Volume 22 Issue 3
The goal of sample pretreatment is to isolate the carbon fraction required for radiocarbon dating and to remove carbon fractions that are altered or contaminated . Selecting the appropriate pretreatment plan depends on the unique attributes of the sample itself, such as the sample type, potential contaminants, the burial context, and the size and preservation of the sample .
Fractionation Natural chemical or physical processes can fractionate the carbon isotopes during the up-take and alter the 13C/12C and also the 14C/12C isotopic ratio . This requires some correction . e .g . photosynthesis enriches lighter isotopes → the carbon in a plant has a relatively higher 12C/14C ratio than the atmosphere .
Carbon 14 dating , also defined as radiocarbon dating , is a method of determining age and relies heavily on the decay of radiocarbon to nitrogen (otherwise called carbon -14) . Carbon 14 dating is formed continuously in nature by the interaction of neutrons with nitrogen-14 in the atmosphere of Earth .
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Carbon Dating Fractionation

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