Stable isotope dating

If you have any questions about your sample, please contact the lab.

– The laboratory also automatically includes stable oxygen isotope measurements for carbonates in the radiocarbon dating service and offers the service on a standalone basis.

The decay of radioisotopes can be used not only to date material but also to time very slow processes, such as the evolution of the Earth's atmosphere.

Pairs of isotopes used in radiometric dating include potassium–40 which decays to argon–40 with a half-life of 1.25 × 10A technique for measuring the age of an object or sample of material by determining the ratio of the concentration of a radioisotope to that of a stable isotope in it; for example, the ratio of carbon-14 to carbon-12 reveals the approximate age of bones, pieces of wood, and other archeological specimens.

Kendall C., Caldwell, E., Isotope Tracers in Cachement Hydrology (1998) Elsevier Science B. François Martineau, François Fourel, Anne-Marie Bodergat, Christophe Lécuyer, “D/H equilibrium fractionation between H2O and H2 as a function of the salinity of aqueous solutions”, Would you like us to track your package? Read about sample material return How much does carbon dating cost?

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These limitations are due to salinity-dependent fractionation factors between CO2 and H2O and will routinely result in accuracy loss on the order of 0.5 o/oo for δ18O and 5.0 o/oo for δD. Christophe Lécuyer, Véronique Gardien, Thomas Rigaudier, François Fourel, François Martineau, Alexandre Cros, “Oxygen isotope fractionation and equilibration kinetics between CO2 and H2O as a function of salinity of aqueous solutions”, , Volume 264, Issues 1–4, 30 June 2009, Pages 122-126. You only need to include the confirmation code in the packag​e​​.

The impact of the radiocarbon dating technique on modern man has made it one of the most significant discoveries of the 20th century.

No other scientific method has managed to revolutionize man’s understanding not only of his present but also of events that already happened thousands of years ago.

Our AMS dating fees for water samples are currently inclusive of δ13C, δ18O and δD measurements; quality assurance reports; calendar calibration when applicable; and 24/7 web access to past results and pending analyses.

Stable oxygen-18 and deuterium isotope measurements are also available on a standalone basis, without radiocarbon dating.

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