[A-HW34] 同位体水文学 2020

[AHW34-P04] 溶存窒素・アルゴン濃度から推定した地下水のExcess air量

浅井 和由¹、*浅井 和見¹ (1.株式会社地球科学研究所)

キーワード：Excess air、地下水、窒素、アルゴン、SF6年代

To evaluate distribution of the excess air is vital for groundwater dating using SF6. For the estimation of excess air value, we used dissolved Nitrogen and Argon data. Water samples were collected from 49 springs and 22 wells in the Chubu region. We will present estimated excess air values and discuss its impact for SF₆ groundwater age.