Tanguy Le Borgne¹, Olivier Bochet², Luc Burté³, Lorine Bethencourt⁴, Camille Bouchez⁵, Julien Farasin⁴, Mathieu Pédrot⁶, Alexis Dufresne⁷ and Luc Aquilina⁸, (1)University of Rennes, Geosciences Rennes, CNRS, UMR 6118, Rennes Cedex, France, (2)Indian Institute of Technology Kharagpur, Kharagpur, India, (3)University of Rennes 1 / ANTEA GROUP, Géosciences Rennes UMR 6118, Rennes, France, (4)University of Rennes 1, OSUR, Rennes, France, (5)University of Rennes, Rennes Cedex, France, (6)University of Rennes 1, Géosciences Rennes UMR 6118, Rennes, France, (7)CNRS, Ecobio UMR 6553, Rennes, France, (8)Géosciences Rennes, UMR CNRS 6118 - Université Rennes 1, Rennes Cedex, France