Liquidus temperatures of the Skaergaard magma

  title={Liquidus temperatures of the Skaergaard magma},
  author={Peter Thy and Christian Tegner and Charles E. Lesher},
  journal={American Mineralogist},
  pages={1371 - 1376}
Abstract The liquidus temperatures of the Skaergaard intrusion can be estimated for the layered series from plagioclase compositions. Plagioclase saturation in one-atmosphere melting experiments on evolved North Atlantic basalts is a function of An content (mol%) and can be described by an empirical linear relationship [T (°C) = 899 + 3.6 An; 1σ = 20 °C]. This relationship predicts a total crystallization interval for the intrusion of ~150 °C. Plagioclase crystallized in the Hidden Zone (An71… 

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