%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Romey, C.
%A Rochette, P.
%A Vella, C.
%A Arfib, B.
%A Andrieu-Ponel, V.
%A Braucher, R.
%A Champollion, C.
%A Douchet, M.
%A Dussouillez, P.
%A Hermitte, D.
%A Mattioli, E.
%A Parisot, Jean-Claude
%A Schwenninger, J. L.
%T Geophysical and geomorphological investigations of a Quaternary karstic paleolake and its underground marine connection in Cassis (Bestouan, Cassis, SE France)
%D 2014
%L fdi:010062042
%G ENG
%J Geomorphology
%@ 0169-555X
%K Karst ; Provence ; Geophysical prospection ; Submarine spring ; Paleolake ; Cassis ; Bestouan
%K FRANCE
%M ISI:000336345700030
%P 402-415
%R 10.1016/j.geomorph.2014.02.021
%U https://www.documentation.ird.fr/hor/fdi:010062042
%> https://www.documentation.ird.fr/intranet/publi/2014/06/010062042.pdf
%V 214
%W Horizon (IRD)
%X An original karstic system in a coastal alluvial plain located in a carbonate environment (Cassis, Provence - SE France) was studied using a multi-method approach (electrical resistivity tomography, gravimetric, passive seismic survey), combined with geomorphologic methods, surface observations and drilling. Limestone dissolution and/or cavity collapse led to the development of a polje, which was filled rapidly by erosion of Aptian marls. The combination of several dating and paleoenvironmental proxies indicates that the polje was filled during a glacial period (MIS 6, 8 or 10, i.e. in the 130-360 ka age range). This discovery has implications for the understanding of karst processes. The connection between the polje and the three km-long Bestouan underwater karstic conduit with submarine outlet is strongly suggested by sedimentological studies and geophysical prospections.
%$ 064