Fidele Yrro

Institut National de la Recherche Scientifique | INRS · Eau Terre Environnement Centre

Mining is a major concern for the availability of groundwater resources due to the continual pumping out for pit dewatering. The objective of the study is to assess the impact of mining on the functioning of the aquifer system of the Yaoure Gold Project area. The methodology adopted was to first caracterize the aquifer system by producing the fract...

Sharp-interface seawater intrusion models present shorter run times than variable density codes, which makes them practical for regional, decision-support groundwater modeling. Although parameter estimation and uncertainty analyses are essential steps for model-based decision making, their implementation in seawater intrusion models has remained li...

We propose a new approach for integrating ground-based and heliborne time-domain electromagnetic data over the St-Lawrence Lowlands (Quebec, Canada) that allows recovering the resistivity model of the subsurface satisfying both collected data. The approach uses discrete and continuous geostatistical simulations and the gradual deformation method (G...

High-resolution seismic and sediment core data from the ‘Grand Lac’ basin of Lake Geneva reveal traces of repeated slope instabilities with one main slide-evolved mass-flow (minimum volume 0.13 km3) that originated from the northern lateral slope of the lake near the city of Lausanne. Radiocarbon dating of organic remains sampled from the top of th...

Similarly to steep oceanic continental margins, lake slopes can collapse, producing large sublacustrine landslides and tsunamis. Lake sediments are excellent natural archives of such mass movements and their study allows the reconstructions of these prehistoric events, such as the 563 AD large tsunami over Lake Geneva (Kremer et al, 2012). In Lake...

Recent seismic studies in the central part of Lake Geneva have revealed the presence a series of Holocene sedimentary layers with either well-organized reflections or with chaotic or transparent seismic character. While the former correspond to lacustrine sediments deposited as hemipelagic or turbidite layers, the latter are interpreted to be relat...