We added: “We define as recent tectonic activity the events that are recorded at the surface and can alter the surface with active tectonic features, such as modifications of the drainage system” • Discussion: One general comment, could the use of other tracers (radon, of stable isotopes of water) yield also insight on the origin of the fluids sampled in this study?
Line 360: Here and throughout the text, the word ‘recent’ is used to describe some tectonic activity. It would be good define what recent means in the context of this study. An indication is provided in the Discussion (Line 414), but it would go to state this value upfront in the text.