@article{fdi:010081298,
  title = {{H}ydrochemical and isotopic characteristics of groundwater in the {C}ontinental {I}ntercalaire aquifer system : insights from {M}zab {R}idge and surrounding regions, {N}orth of the {A}lgerian {S}ahara},
  author = {{H}akimi, {Y}. and {O}rban, {P}. and {D}eschamps, {P}ierre and {B}rouyere, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tudy region: {N}orth of {S}ahara, {A}lgeria. {S}tudy focus: {T}he effects of water/rock interactions and hydrodynamic conditions on the characteristics of groundwater in the {C}ontinental {I}ntercalaire aquifer ({CI}) are demonstrated using hydrochemical and isotopic data from the {M}zab {R}idge. {N}ew hydrological insights: {T}he results confirm that {CI} groundwater in the oriental basin is highly mineralized (1010 > {EC} > 3500 mu {S}/cm) and is of the {SO}4-{C}l-{N}a type. {H}owever, it is poorly mineralized (340 > {EC} > 960) in the occidental basin and predominantly belongs to the {HCO}3-{C}a type. {T}he important contribution of evaporite minerals has been deduced using saturation indices and minor element ratios of {S}r/{C}a and {B}r/{C}l. {T}his is explained by lithological heterogeneities within the {CI} aquifer and corroborates the observations from regional piezometric features which suggest a groundwater divide located between 31.55 degrees and 31.57 degrees {N} latitude. delta {O}-18-{NO}3 and delta {N}-15-{NO}3 analyses show that {NO}3 has a predominantly natural origin, which is soil nitrification even for the high concentrations exceeding 50 mg/{L}. {CI} groundwaters are highly depleted in both delta {O}-18 and delta {N}-15 compared to modern rainfall isotopic signatures. {T}he most depleted ones are those situated in the {G}reat {O}riental {E}rg sub-basin. {I}sotopic values as low as delta {O}-18= 6 parts per thousand can be taken as the limit for groundwater that is typically old. {I}n the {E}l {G}olea region, isotopic enrichment seems to indicate mixing between old groundwater and evaporation-affected groundwater infiltrating through the dunes of the {G}reat {O}ccidental {E}rg.},
  keywords = {{N}orth {W}estern {S}ahara {A}quifer {S}ystem ; {C}ontinental {I}ntercalaire aquifer ; {M}zab {R}idge ; {H}ydrogeochemistry ; {W}ater stable isotopes ; {SOM} ; {ALGERIE} ; {SAHARA} ; {MZAB}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology : {R}egional {S}tudies},
  volume = {34},
  numero = {},
  pages = {100791 [13 ]},
  year = {2021},
  DOI = {10.1016/j.ejrh.2021.100791},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081298},
}