Figure 2
From: Non-mantle-plume process caused the initial spreading of the South China Sea
Plots of SiO2 (a), Al2O3 (b), CaO (c), TiO2 (d), Ni (e), and Sc (f) versus MgO for Site U1500 basalt samples. Fractional crystallization simulation by “Petrolog 3” software59 is present in plot (c) as a function of olivine, plagioclase, and clinopyroxene removal for Site U1500 basalts at pressures of 0.001 kbar and 3 kbar. Average N-MORB is used as the starting magma during the modeling. Reference data for basalt samples from Sites U1431 and U1433 are referred to references10,14. Average elemental data for N-MORB and E-MORB are from Gale et al.60. Data for global MORB (Pacific Ocean MORB and Indian Ocean MORB) are derived from Petrological Database (http://www.earthchem.org/petdb).
