Weathering and anthropogenic influences on the water and sediment chemistry of Wular Lake, Kashmir Himalaya
作者： Javid A. Sheikh , Gh. Jeelani , R. S. Gavali , Rouf Ahmad Shah
DOI: 10.1007/S12665-013-2661-Z
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摘要: This paper presents a study on the Wular Lake which is largest fresh water tectonic lake of Kashmir Valley, India. One hundred and ninety-six (196) samples (100) sediment (n = 296) have been collected to assess weathering Anthropogenic impact chemistry lake. The results showed significant seasonal variability in average concentration major ions being highest summer spring lower winter autumn seasons. revealed that alkaline nature characterised by medium total dissolved solids electrical conductivity. ion towards central decreasing trend from shore line. order cations anions was Ca2+ > Mg2+ > Na+ > K+ HCO3 − > SO4 2− > Cl−, respectively. geochemical processes suggested chemical composition mostly influenced lithology basin (carbonates, silicates sulphates) had played role modifying hydrogeochemical facies form Ca–HCO3, Mg–HCO3 hybrid type. Chemical index alteration values sediments reflect moderate catchment area. Compared upper continental crust post-Archean Shale, higher Si, Ti, Mg Ca contents Al, Fe, Na, K, P, Zn, Pb, Ni, Cu content. Geoaccumulation (Igeo) US Environmental Protection Agency quality standards indicated there no pollution effect heavy metals (Zn, Mn, Ni Co).The also both natural anthropogenic influences.
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