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Cesium age dating

Our client base is international and includes environmental consulting companies, universities, government research institutes and communities.

If modelling and interpretation are requested, the Pb-210 results will normally be modelled to obtain the best fit of the data, where possible.

The CRS model and/or the slope regression model will be applied. cumulative dry weight (g/cm) is supplied with the model results and interpretation.

It is based on the fact that some of the radioactive isotope of Potassium, Potassium-40 (K-40) ,decays to the gas Argon as Argon-40 (Ar-40).

By comparing the proportion of K-40 to Ar-40 in a sample of volcanic rock, and knowing the decay rate of K-40, the date that the rock formed can be determined.

Sediments were collected using MC800 multicorer, and sliced into selected 1-cm intervals.

Aliquots were dried, ground into fine powder, and placed in glass vials.

Potassium (K) is one of the most abundant elements in the Earth's crust (2.4% by mass).

One out of every 10,000 Potassium atoms is radioactive Potassium-40 (K-40).

, Cs-137), cesium-137, or radiocaesium, is a radioactive isotope of caesium which is formed as one of the more common fission products by the nuclear fission of uranium-235 and other fissionable isotopes in nuclear reactors and nuclear weapons.

It is among the most problematic of the short-to-medium-lifetime fission products because it easily moves and spreads in nature due to the high water solubility of caesium's most common chemical compounds, which are salts. The remainder directly populates the ground state of barium-137, which is stable.

Ba-137m has a half-life of about 153 seconds, and is responsible for all of the emissions of gamma rays in samples of caesium-137.