Macroscopic view of host lava and photomicrographs taken under crossed-polarized light. (a) Lava sample hosting mantle xenoliths; (b) microlitic aphyric (SAF88) and (c) microlitic porphyritic texture of the study lavas (SOT22); (d) protogranular texture in a spinel lherzolite with a Cpx crystal showing spinel exsolution lamellae (BIW805); (e) porphyroblastic texture in spinel lherzolite (BIW88); (f) melt veinlets crosscutting olivine, Opx, and Cpx and twinned clinopyroxene crystal displaying numerous fluid inclusions and Cr-spinel encompassing olivine crystal (BIW88); (g) cumulus olivine crystal altered into serpentine and melt pocket around spinel crystal (BIW88); and (h) partially altered Opx phenocrystal including olivine and displaying parallel melt veinlets (BIW88). Mineral symbols are from Kretz et al. (1983); FI, fluid inclusion.