Fig. 5: N2/3He vs. δ15N plot.
From: Latent magmatism beneath the Korean Peninsula caused by asthenosphere upwelling
The SCLM range (1σ area around the average value) is from xenoliths (noted by gray squares) in Sveyagin, Far East Russia36. The solid lines connect each end-member (MORB, SCLM, sediment, and air). The dashed lines display the contribution of mantle to sediment for quantitative tracing of nitrogen sources, and the larger the air end-member contributes, the closer they are to the mantle-air mixing line.
