Interpretation of chemical and isotopic analysis of ruthenium carried out on Oklo ore samples and various geological samples

Isotopic compositions of ruthenium from various terrestrial sources were compared between them and with ruthenium from a sample of the meteorite of Canyon Diablo. It was not possible to detect any isotopic anomalies, beyond precision of measurement, this result shows that less than 0.5% of the earth crust uranium participated in Oklo type nuclear reactions, in the hypothesis of a complete rehomogeneization of ruthenium in the earth crust. Chemical and isotopic analysis of fission ruthenium along the SC 36 boring of zone II show a noticeable differenciation between ruthenium and technetium at the time of nuclear reaction and a ruthenium distribution slightly narrower in comparison with that of fission neodymium