Continental subduction triggered carbonate metasomatism of the lithospheric mantle

Figure S1 shows the Covariation plots of Mg# vs. MnO, and TiO₂ vs. Al₂O₃ in orthopyroxene in this study. Figure S2 shows the two pyroxene equilibration temperature histogram for Qixia mantle xenoliths in this study and the previous study. Figure S3 shows the CaO content on the rim of the olivine inclusion in clinopyroxene is higher than its core which implies a reaction between clinopyroxene and olivineTable 1. Mineral assemblage of the Qixia xenoliths in this study.Table 2. In situ Sr isotopic compositions of clinopyroxene in Qixia xenoliths measured by LA-MC-ICP-MS.Table S1-S5 lists the major (wt%) and trace (µg/g) element compositions in USGS reference glasses and minerals (including olivine, clinopyroxene, orthopyroxene, and spinel) from Qixia mantle xenoliths in this study. The major and trace elements of minerals were analyzed <i>in situ</i> by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) with a spot size of 44 μm at the State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan (GPMR-CUG). Detailed operating conditions for LA-ICP-MS are described in Liu et al. (2008b). Off-line selection and integration of background and analytical signals, time-drift correction, and quantitative calibration were conducted using the ICPMSDataCal software (Liu et al., 2008b, 2010). Table S6 shows the equilibration temperatures of mantle xenoliths in this study calculated from selected different thermometers.<br>