Actualités et séminaires

Volcano could be distinguished into two groups due to its chemical origin properties. First is basaltic volcanoes from hotspots or rift-zone activity, and the second is andesitic volcanoes around subduction zone. The first type has been highly studied in the last 50 years (Peterson, 1972; Custodio, 1989), but the second one is less known (Charlier et al., 2011; Vittecoq et al., 2019). Located on the subduction zone, Indonesia has a lot of andesitic volcanoes.  One of amazing volcanic complex with a high potentcy of groundwater resouces is Gede – Pangrango – Salak.

Effective assessment of the fate of water-soluble contaminants leaked to aquifers is crucial for the management and preservation of groundwater resources. Contaminant solute transport unfolds over multiple spatial and temporal scales and is, thus, very challenging to characterize using conventional sparsely-sampled and local hydrological measurement techniques alone. Complementarily, the time-lapse direct-current (DC) geophysical method provides spatially and temporally-distributed information on equivalent DC electrical conductivity, the latter being sensitive to the transport of electrica