Geochemistry of Great Salt Lake, Utah I: Hydrochemistry since 1850

摘要: Abstract The hydrochemistry of Great Salt Lake, Utah, has been defined for the historic period, 1850 through 1982, from published data combined with new observations. water balance depends largely on river inflow, atmospheric precipitation onto lake surface and evaporation. Input major solutes can best be accounted by mixing dilute calcium-bicarbonate type waters NaCl-dominated hydrothermal springs. Prior to 1930, concentrations fluctuated inversely volume in response small climatic variations. Since then, salt dissolution have significantly modified brine compositions led density stratification formation pockets differing composition. Brine become an important component evolution. We used calculated evaporation curves mineral clarify these processes. Pore fluids represent storage solutes. Solute profiles modeled simple one-dimensional diffusion calculations. Short-term variations composition affect shallow pore upper 2 metres sediment.