Seasonal evaporite sedimentation in desert playa lakes of the Karinga Creek drainage system, central Australia

The coexistence of halite and mirabilite facies in the efflorescent crusts is largely a consequence of the groundwater discharge pattern and the hydrochemical setting of brine pools at a given point, rather than a true representation of concurrent episodes of chemical sedimentation. These findings agree with results from isothermal evaporation experiments and reflect a patterm of playa sedimentation that differs significantly from that of simple evaporation. -from Authors