Hydrogeochemistry of thermal waters of the Baikal Rift, South-Eastern Tuva, Russia Anastasia Shestakova, Natalia Guseva, Yulia Kopylova, Albina Khvaschevskaya and Kara-Kys Arakchaa E3S Web Conf., 98 (2019) 07029 Published online: 07 June 2019 DOI: 10.1051/e3sconf/20199807029