Combining microbial, isotopic and residence time data to characterize groundwater dynamics in a multi-layered aquifer system in Kurikka, western Finland. - Purkamo, Lotta; Ikonen, Juuso; Pétré, Marie-Amélie; Putkinen, Niko; Sültenfuss, Jürgen; Myllyperkiö, Minna; Hokajärvi, Anna-Maria; Pitkänen, Tarja; Miettinen, Ilkka T. (Biogeosciences, 2026)