Abstract
Hydrogeochemical assessment of meltwater quality draining from Bara Shigri glacier was carried out in the year 2011. The concentration of cations varied as Ca2+ > Mg2+ > K+ > Na+. Whereas, anions concentration followed the pattern HCO3− > SO42− > Cl− > NO3− > PO43−. High values of Ca+Mg/TZ+ and (Ca+Mg)/(Na+K) indicate that carbonate weathering is the most dominant mechanism controlling the major ions chemistry of the study area. However, the low ratio of (Na+K)/TZ+ also shows relatively smaller contribution of dissolved ions in the meltwater by silicate weathering as compared to carbonate weathering. The ratios of Na/Cl and K/Cl are higher than marine aerosols, indicating relatively small contribution from atmospheric precipitation to the chemical composition of meltwater of the study area.
Published Version
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