@inproceedings{fdi:010011230,
  title = {{L}e contact eau douce-eau de mer entre {D}akar et {S}aint-{L}ouis ({S}{\'e}n{\'e}gal) : une {\'e}tude g{\'e}o{\'e}lectrique},
  author = {{D}iouf, {S}ame and {G}omis, {R}aymond and {T}chani, {J}oseph},
  editor = {},
  language = {{FRE}},
  abstract = {{R}esistivity methods were used with a vertical electrical sounding network to investigate the relationship between freshwater and saltwater along the northern coastline of {S}enegal, from {D}akar to {S}aint-{L}ouis. {T}he water-table aquifer lies in quaternary sands with very low piezometric heads, less than one meter near the coast. {T}he depth of the saltwater interface, as revealed by the water resistivity using {A}rchie's formula, is consistent with a gentle slope of the watertable towards the sea. {A}long the coast, different hydrogeologic conditions were found : in the northern section, the system is rather uniform, with a stable saltwater edge ; in the {C}ap {V}ert peninsula, saltwater intrusion has already begun due to pumping, and the aquifer is in a preacrious condition, the saltwater edge seems to be presently blocked by a rise of the argilaceous basement. {T}he influence of groundwater abstraction and of evaporation in freshwater coastal lakes can clearly be seen on the electric and hydrogeologic measurements. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{GEOPHYSIQUE} ; {SONDAGE} {ELECTRIQUE} ; {ZONE} {COTIERE} ; {AQUIFERE} ; {EAU} {DOUCE} ; {EAU} {DE} {MER} ; {SENEGAL} ; {DAKAR} {REGION} ; {SAINT} {LOUIS} {REGION}},
  numero = {},
  pages = {133--138 multigr.},
  booktitle = {{G}{\'e}ophysique des sols et des formations superficielles : abstracts et r{\'e}sum{\'e}s {\'e}tendus},
  year = {1997},
  URL = {https://www.documentation.ird.fr/hor/fdi:010011230},
}