Europium migration in Argillaceous Rocks: On the use of Micro Laser-Induced Breakdown Spectroscopy (micro LIBS) as a Microanalysis Tool

摘要

Eu migration in a Callovo-Oxfordian argillite sample was studied using the micro LIBS technique. Quantitative elemental mapping were made by micro LIBS that showed the actual distribution of the various micro areas observed on the Callovo-Oxfordian sample's surface. Calcite, dolomite, alumino-silicates, quartz, pyrite and iron oxides were identified and their statistical distribution was determined. Experimental Eu profiles observed are consistent with diffusion process accompanied by heterogeneous sorption on alumino-silicate surface.