First data on the chemical composition of natural waters at the gold deposit “Novye Peski” (South Karelia, Russia)Evgeniya Sidkina, Artem Konyshev, Elena Cherkasova, Andrey Toropov and Sofia VorobeyE3S Web Conf., 494 (2024) 01007DOI: https://doi.org/10.1051/e3sconf/202449401007