Rock geochemistry diagrams for the basaltic lavas and picrites from the QQAB (IMAGE)

Science China Press

Rock geochemistry diagrams for the basaltic lavas and picrites from the QQAB

Caption

(a-b) Tectonic discrimination diagrams for picrite and basaltic rocks of the ophiolitic complexes from the Qilian-Qinling accretionary belt (QQAB). (c) Calculated melting conditions for primary magmas of the picrite-basalt sequence from the QQAB ophiolitic complexes. (d) Lu/Hf vs. La/Sm diagram for picrite and basaltic rocks from the QQAB ophiolitic complexes. The curves show the effect of between 0.01% and 20% equilibrium melting of spinel and garnet peridotite.

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