Escape of volcanic gas into shalow groundwater systems at Unzen Volcano (Japan): evidence from chemical and stable carbon isotope compositions of dissolved inorganic carbon

Shinji Ohsawa, Kohei Kazahaya, Masaya Yasuhara, Tadashi Kono, Koichi Kitaoka, Yuki Yusa and Kazuhiro Yamaguchi

Limnology, 3, 169-173.