An Evaluation of the Long-Term Stagnancy of Porewater in the Neogene Sedimentary Rocks in Northern Japan

A groundwater dating for very old porewater using 36Cl and 4He was applied to the Koetoi and Wakkanai formations distributed in the northernmost part in Japan. Measured 36Cl/Cl in the Koetoi Formation was 2.6 ± 2.0 × 10−15 and that in the Wakkanai Formation was 8.1 ± 2.5 × 10−15. These values are si...

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Bibliographic Details
Main Authors: Kotaro Nakata, Takuma Hasegawa, Takahiro Oyama, Eiichi Ishii, Kazuya Miyakawa, Hiroshi Sasamoto
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2018/7823195
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