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

<div>The relationships between <i>δ</i>D and He concentration in the porewater in the Koetoi and Wakkanai formations. Plots with open circle: the data plotted under or close to the dashed line in Figure <a href="../fig12/">12</a>.</div>

Geofluids

fig14

Figure 14

Figure 14: An Evaluation of the Long-Term Stagnancy of Porewater in the Neogene Sedimentary Rocks in Northern Japan 