Chemistry-transport coupled modelling of the Aespoe groundwater system (Sweden) since the last glaciation

摘要

Based on the specific coupled modelling approach developed at BRGM, a reaction-transport model of the Aspo groundwater system (Sweden) has been developed; it simulates a continuous scenario from 12.000 BP to the natural modern situation. Examples of the results (evolution of Na, ~(18)O, calcite) are presented. Na, Ca, Cl and stable isotopes are mainly related to mixing between the different mixing endmembers subsequently entering the system (glacial meltwater, Baltic Sea stages, meteoric water), calcite contents, pH and silica are determined by water rock interaction.