Figure 14. Liquidus compositions representing the trapped and residual liquids estimated by geochemical thermometry, experimentally obtained "trapped" melts [McBirney and Naslund, 1990], and the canonical series of the Skaergaard differentiates [Wager, 1960; Wager and Brown, 1967]. The modeled liquids include the average trapped melt defined for the MBS rocks ( TM, Table 1) and five residual liquids for the main units of the Skaergaard Layered Series (Table 3). Liquids plotted on this diagram are plagioclase-saturated and outline the Ol - Aug - Pl and Ol - Aug - Pig - Pl saturation surfaces.