Figure 12
(a) Diffraction data obtained in the TiZr gas cell during warming of meridianiite at 545 MPa. The bottom three datasets show the expected peaks due to meridianiite; the onset of partial melting is indicated by the dramatic loss of intensity at 270 K. At 295 K only weak residual peaks remain; these are shown in an expanded view in (b). The identity of this phase remains unknown. |