Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleEstimation of groundwater residence time in a geologically active region by coupling <sup>4</sup>He concentration with helium isotopic ratios.AuthorsMorikawa, N.; Kazahaya, K.; Yasuhara, M.; Inamura, A.; Nagao, K.; Sumino, H.; Ohwada, M.PublicationGeophysical Research Letters, 2005, Vol 32, Issue 2, pn/aISSN0094-8276Publication typeArticleDOI10.1029/2004GL021501