A Two and Three End-Members Mixing Model based on Element Ratios and Isotopic Composition using ITINERIS Isotope Database (Isotope Studio)

In this report, we present a new application capable of calculating, quantifying, and showing the outcomes of two- and three-component mixing dynamics. Within the ITINERIS Project (Italian Integrated Environmental Research Infrastructures System), we are building up a Virtual Research Environment, which develops resting on an isotope database in which a variety of data may be stored (major and trace elements, intensive parameters, radiogenic, stable, and stable non-conventional isotopes) as a repository, and it is provided with a series of tools, to allow the users to produce modelling with the purpose of understanding the most important geo-environmental processes occurring throughout the Earth System. As an example of applications, here we show a binary mixing between groundwaters and geothermal waters using trace element and isotope ratios (Sr vs 87Sr/86Sr), as well as ternary mixing of trace elements (V vs K) of three diverse groundwaters. Then, we compare literature modelling of mixing process with the results obtained using our web application, concluding our model is coherent and consistent with them.