Partial melting experiments on oceanic cumulated gabbros, supplement to: Koepke, Jürgen; Feig, Sandrin T; Snow, Jonathan E; Freise, Marcus (2004): Petrogenesis of oceanic plagiogranites by partial melting of gabbros: an experimental study. Contributions in Mineralogy and Petrology, 146(4), 414-432

Jürgen Koepke, Sandrin T Feig, Jonathan E Snow & Marcus Freise
We performed hydrous partial melting experiments at shallow pressures (0.2 GPa) under slightly oxidizing conditions (NNO oxygen buffer) on oceanic cumulate gabbros drilled by ODP (Ocean Drilling Program) cruises to evaluate whether the partial melting of oceanic gabbro can generate SiO2-rich melts with compositions typical of oceanic plagiogranites. The experimental melts of the low-temperature runs broadly overlap those of natural plagiogranites. At 940 °C, the normalized SiO2 contents of the experimental melts of all systems...
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