Transmitted light microscopic photographs. The photographs show melt globules surrounded by aqueous fluids under HTHP conditions after measurements and before quenching. The diameters of gasket holes are about 0.4 to 0.5 mm, and thickness is about 0.08 to 0.1 mm. (A) Exp. BB at 730°C and 1 GPa. (B) Exp. 137 at 770°C and 0.47 GPa. (C) Exp. 137E at 810°C and 0.62 GPa. (D) Exp. 137G at 820°C and 1.29 GPa.