@article{fdi:010064648,
  title = {{H}ydrogeochemical characteristics of {K}arst {A}quifer from a semi-arid region of {S}outhern {I}ndia and impact of rainfall recharge on groundwater chemistry},
  author = {{D}ar, {F}. {A}. and {P}errin, {J}. and {A}hmed, {S}. and {N}arayana, {A}. {C}. and {R}iotte, {J}ean},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he highly heterogeneous and anisotropic property of karst aquifers is a result of the dissolution and karstification of carbonate rocks. {H}ydrogeochemical evolution and possible water-rock interaction is therefore discussed through spatial and temporal variations in physico-chemical variables of groundwater. {S}amples were collected both from spring and bore wells. {D}issolution of carbonate minerals is the main source of major ions ({C}a2+, {M}g2+ and {HCO}3-) in the water. {A}gricultural activities cause an increase in the concentration of pollution-related ions (nitrates, sulphates, chlorides, etc.). {T}he variability of water chemistry was discussed in terms of different processes like dilution and water-rock interactions, etc. {T}he study reveals a pronounced seasonal hydrochemical variation in the limestone aquifer. {I}n general, the karst groundwater is of {C}a-{M}g-{HCO}3 type. {H}ydrogeochemical signature also helped to analyse the recharge types in the area. {T}he semi-arid climate of the area also contributes to the increase of concentration of certain ions.},
  keywords = {{H}ydrogeochemistry ; {K}arst aquifer ; {S}emi-arid ; {S}outhern {I}ndia ; {INDE} ; {ZONE} {SEMIARIDE}},
  booktitle = {},
  journal = {{A}rabian {J}ournal of {G}eosciences},
  volume = {8},
  numero = {5},
  pages = {2739--2750},
  ISSN = {1866-7511},
  year = {2015},
  DOI = {10.1007/s12517-014-1440-9},
  URL = {https://www.documentation.ird.fr/hor/fdi:010064648},
}