This PDF file includes:

• Oxygen mass balance calculation
• fig. S1. Compiled EDX maps of Si, Mg, and S of magnetite-bearing chondrules.
• fig. S2. Chemical composition of magnetite.
• fig. S3. Sulfur isotopic composition of troilite grains associated to magnetite.
• fig. S4. Influence of the amount of oxygen dissolved in FeS melts on silicate mineral/Fe-S-O matte dihedral angles.
• fig. S5. Three-oxygen isotope diagram showing previous results of oxygen composition of magnetite in CV chondrules.
• fig. S6. Fe-S-O phase diagram.
• table S1. Chemical composition of magnetite grains.
• table S2. Oxygen isotopic composition of magnetite grains.
• table S3. Sulfur isotopic composition of sulfides associated to magnetite grains.
• References (43–46)

Download PDF