The evolution of alkaline, saline ground- and surface waters in the southern Siberian steppes

Banks, David; Parnachev, V. P.; Frengstad, Bjørn; Holden, W.L.; Карначук, О. В.; Vedernikov, Anatoly A.

doi:10.1016/j.apgeochem.2004.05.009

Cited by 25 publications

(17 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are significant variations in the compostion of the water. Sodium, Cl -and SO 4 2-all increase in approximately the same proportions in the groundwater, suggesting that they are relatively conservative species and good indicators of solute accumulation by evaporite dissolution or evapoconcentration of the recharge water (Banks et al, 2004). Alkalinity and Na + , Cl -and SO 4 2-all were in higher concentrations in the discharge area.…”

Section: Sodiummentioning

confidence: 88%

“…Alkalinity and Na + , Cl -and SO 4 2-all were in higher concentrations in the discharge area. This is likely to be related to the greater degree of evapoconcentration of solutes in the lowland areas and the greater degree of microbial productivity in lowland soils, leading to higher alkalinity (Banks et al, 2004). Topography is generally lower in the discharge area, resulting in slower groundwater flow; the water consequently remains underground longer and is a more hydrogeochemically mature groundwater (Banks et al, 2004).…”

Section: Sodiummentioning

confidence: 97%

See 1 more Smart Citation

Assessment of the chemical components of Famenin groundwater, western Iran

Jalali

2007

Environ Geochem Health

View full text Add to dashboard Cite

The Faminin area in the semi-arid Hamadan state, western Iran is facing a serious deficiency in groundwater resources due to an increasing demand associated with rapid population growth and agricultural development. The chemical composition of 78 well samples throughout the Faminin area was determined with the aim of evaluating the concentration of the background ions and identifying the major hydrogeochemical processes that control the groundwater chemistry. The similarity between rock and groundwater chemistries in the recharge area indicates a significant rock-water interaction. The hydrochemical types Na-HCO(3) and Na-SO(4) are the predominate forms in the groundwater, followed by water types Ca-HCO(3) and Na-Cl. The high values of electrical conductivity and high concentrations of Na(+), Cl(-), SO (4) (2-) and NO (3) (-) in the groundwater appeared to be caused by the dissolution of mineral phases and would appeared to be caused by anthropogenic activities, such as intense agricultural practices (application of fertilizers, irrigation practice), urban and industrial waste discharge, among others.

show abstract

Section: Sodiummentioning

confidence: 88%

Section: Sodiummentioning

confidence: 97%

Assessment of the chemical components of Famenin groundwater, western Iran

Jalali

2007

Environ Geochem Health

View full text Add to dashboard Cite

show abstract

“…Calcite saturation in the presence of significant alkalinity prevents accumulation of Ca 2+ in the waters, and thus also prevents gypsum saturation from being achieved, allowing SO 4 2-to accumulate in the water. Calcium and alkalinity concentrations vary with conductivity in groundwater (Table 2), suggesting that calcite saturation and precipitation is not limiting Ca 2+ and HCO 3 -accumulation (Banks et al 2004). …”

Section: Ion Distributionsmentioning

confidence: 97%

“…Calcite precipitation buffers pH and maintains it in a slightly alkaline condition. Precipitation of calcite may occur from waters where initial alkalinity exceeds Ca 2+ concentration, resulting in Ca 2+ being progressively removed from solution (Banks et al 2004). Calcite saturation in the presence of significant alkalinity prevents accumulation of Ca 2+ in the waters, and thus also prevents gypsum saturation from being achieved, allowing SO 4 2-to accumulate in the water.…”

Section: Ion Distributionsmentioning

confidence: 97%

Major Ion Chemistry in a Freshwater Coastal Lagoon from Southern Brazil (Mangueira Lagoon): Influence of Groundwater Inputs

et al. 2008

View full text Add to dashboard Cite

This paper characterizes major ion distributions and investigates whether groundwater exerts a major control on the chemical functioning of Mangueira Lagoon, a large (90 km long), shallow (*4-5 m deep), and fresh coastal lagoon in southern Brazil. Water volumes equivalent to *80% of the total annual input are used in the summer for irrigating nearby rice plantations, the most important regional economic activity. While Na + and Cl -are the major ions in local groundwater, Na + and HCO 3 -are the most enriched ions in lagoon water. The ion concentrations measured in Mangueira Lagoon were homogeneous, except for a few samples affected by rainwater and groundwater inputs. A shore-normal transect starting at the pump house of a rice irrigation canal indicated strong groundwater input at this canal. In spite of the small volume contribution (*2% of precipitation), groundwater discharge accounts for 50-70% of major ion inputs into the lagoon, with *70% of the groundwater inputs being anthropogenically derived (e.g., from the rice irrigation canals). This may have serious implications for the management of the coastal water resources from Mangueira Lagoon and other similar areas as groundwater associated with agricultural systems may be contaminated by fertilizers and pesticides. The results imply that groundwater should not be neglected in dissolved species' budgets even when its volume contribution is small.

show abstract

“…Therefore, we conclude that the enrichment of Na + is mainly due to the evapoconcentration. The depletion of Ca 2+ is another notable characteristic of lake water, most likely due to the selective removal processes operating in the lake (e.g., Banks et al 2004). Since Nam Co lake water has reached a high pH and salinity, the mineral precipitation (such as bio-induced Ca-carbonate) would be the most important selective removal process (Yan et al 2002).…”

Section: Lake Watermentioning

confidence: 99%

Major Ion Geochemistry of Nam Co Lake and its Sources, Tibetan Plateau

et al. 2008

View full text Add to dashboard Cite

The major cations and anions from lake water samples and its sources, including glacier snow, precipitation, stream, and swamp water in the Nam Co basin, central Tibetan Plateau, were studied. The concentrations of the major ions varied significantly in the five environmental matrices. Generally, the mean concentrations of most ions are in the order of lake water [ swamp water [ stream water [ precipitation [ snow. Rock weathering is the dominant process controlling the chemical compositions of the stream and swamp waters, with carbonate weathering being the primary source of the dissolved ions. The Nam Co lake water is characterized by high Na + concentration and extremely low Ca 2+ concentration relative to other ions, resulting from evapoconcentration and chemical precipitation within the lake. Comparison with the water chemistry of other lakes over the Tibetan Plateau indicated that Nam Co is located in a transition area between non-saline lakes and highly saline lakes. The relatively low concentration of total dissolved solids is possibly due to the abundant inflow of glacial meltwater and relatively high annual precipitation.

show abstract

The evolution of alkaline, saline ground- and surface waters in the southern Siberian steppes

Cited by 25 publications

References 6 publications

Assessment of the chemical components of Famenin groundwater, western Iran

Assessment of the chemical components of Famenin groundwater, western Iran

Major Ion Chemistry in a Freshwater Coastal Lagoon from Southern Brazil (Mangueira Lagoon): Influence of Groundwater Inputs

Major Ion Geochemistry of Nam Co Lake and its Sources, Tibetan Plateau

Contact Info

Product

Resources

About