安定同位体比による富山県庄川扇状地地下水のかん養源および流動状況の研究 [in Japanese] Stable isotope study of ground water recharge and movement in the Shogawa Fan, Toyama [in Japanese]
Access this Article
Search this Article
Deuterium and oxygen-18 measurements of ground and river waters of the Shogawa Fan, Toyama, have been used to identify sources of water in aquifers in the Fan. A significant difference exists in δD and δ<sup>18</sup>O values between two major rivers flowing onto the Fan. On the basis of this difference, it is indicated that aquifers in the eastern half of the Fan are recharged from the Sho River and those in the weastern half of the Fan are from the Oyabe River. Chloride measurements of the waters support this identification of water sources. Contributions of other water sources to the aquifers are also indicated. The flow rate of infiltration from the Sho River is estimated to be 10-13 m/day in the confined aquifers in the northern part of the Fan.
Chikyukagaku 17(1), 1-9, 1983
The Geochemical Society of Japan