@article{PAR00007737, title = {{A}ssessment of doline geometry using geophysics on the {Q}uercy plateau karst ({S}outh {F}rance)}, author = {{V}alois, {R}. and {C}amerlynck, {C}. and {D}hemaied, {A}. and {G}uerin, {R}. and {H}ovhannissian, {G}aghik and {P}lagnes, {V}. and {R}ejiba, {F}. and {R}obain, {H}enri}, editor = {}, language = {{ENG}}, abstract = {{I}n the protection of karstic aquifers, the role played by dolines is of interest as these shallow structures can be preferential infiltration pathways for groundwater recharge. {I}n this study, three depressions in {S}outh {F}rance ({O}rniac, {L}ot) were identified and characterized using combined geophysical methods. {A}pparent conductivity mapping allows precise definition of dolines corresponding to topographic depressions. {I}t also reveals other dolines that are hidden by soil cover. {E}lectrical resistivity and seismic refraction tomography provide detailed cross-sections. {E}ven though the dolines studied are close one to another, they exhibit great variability in shape and content. {M}oreover, time-lapse data show that the most saturated regions are on the edges of the first doline. {S}uch information helps to evaluate human impacts and forecast potential groundwater contamination.}, keywords = {electrical resistivity tomography ; seismic refraction tomography ; sinkhole ; electromagnetic survey ; {Q}uercy plateau karst ; {FRANCE} ; {QUERCY}}, booktitle = {}, journal = {{E}arth {S}urface {P}rocesses and {L}andforms}, volume = {36}, numero = {9}, pages = {1183--1192}, ISSN = {0197-9337}, year = {2011}, DOI = {10.1002/esp.2144}, URL = {https://www.documentation.ird.fr/hor/{PAR}00007737}, }