Mantle-Derived Helium Emission near the Pohang EGS Site, South Korea: Implications for Active Fault Distribution

<div><sup>3</sup>He/<sup>4</sup>He versus <sup>20</sup>Ne/<sup>22</sup>Ne diagram. The reference values for MORB, ASW, and Crust are shown. Each line represents mixing lines between ASW and external helium sources with different MORB contributions.</div>

Geofluids

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Figure 4

Figure 4: Mantle-Derived Helium Emission near the Pohang EGS Site, South Korea: Implications for Active Fault Distribution 