Stability of magnesiowustite in Earth's lower mantle -- Data Supplement - Supporting Information -- Proceedings of the National Academy of Sciences

Supporting information for Lin et al. (2003) Proc. Natl. Acad. Sci. USA, 10.1073/pnas.252782399.

Fig. 6.
Typical Le Bail crystal structure refinement, performed using the GSAS program (1, 2), of the x-ray diffraction pattern of (Mg_0.25,Fe_0.75)O collected in an in situ laser-heated DAC experiment at about 79 GPa and 2,270 (+150) K. The sample remained in B1 structure after laser heating for more than 30 min at 2,270 (+150) K. The total duration of the laser heating was approximately 3 h in this heating cycle. The space groups of (Mg_0.25,Fe_0.75)O and NaCl-B2 are Fm

m and Pm

m, respectively. Solid ticks and dash ticks: diffraction lines of (Mg_0.25,Fe_0.75)O in the B1 and NaCl in the B2, respectively.