Using dissolved silica to quantify transit times in aquifers and streams

Jean Marçais1,2, Jean-Raynald De Dreuzy3, Thierry Labasque4, Benjamin W Abbott5,6, Alexandre Gauvain7, Luc Aquilina1, Zahra Thomas8 and Gilles Pinay9,10, (1)Géosciences Rennes, UMR CNRS 6118 - Université Rennes 1, Rennes Cedex, France, (2)Agroparistech, Paris, France, (3)Geosciences Rennes, Rennes Cedex, France, (4)CNRS, Paris Cedex 16, France, (5)Brigham Young University, Department of Plant and Wildlife Sciences, Provo, United States, (6)OSUR, ECOBIO-CNRS Université de Renenes 1, Rennes, France, (7)University of Rennes, Rennes Cedex, France, (8)Agrocampus ouest, Rennes, France, (9)OSUR-ECOBIO-CNRS UMR 6553 - Université Rennes 1, Rennes, France, (10)MALY-Irstea, Lyon-Villeurbanne, France