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

<div>Depth profile of <i>δ</i>D and <i>δ</i><sup>18</sup>O concentration in the Koetoi and Wakkanai formations.</div>

Geofluids

Figure 7: An Evaluation of the Long-Term Stagnancy of Porewater in the Neogene Sedimentary Rocks in Northern Japan 