Figure F1 (continued). AX. Sample PM90 (193-1189B-18R-2, 49 cm): polymictic volcanic breccia. Powders: P062 (spherulitic clast: XRF, ICP-MS, ¹⁸O, ⁸⁶Sr/⁸⁷Sr), P063 (flow banded clast: XRF, ICP-MS, ¹⁸O_silicate, ⁸⁶Sr/⁸⁷Sr_silicate), and P064 (matrix: XRF, ICP-MS, ¹⁸O_silicate, ⁸⁶Sr/⁸⁷Sr_silicate). AY. Sample PM92 (193-1190C-3R-1, 3 cm): unaltered feldspar-phyric coherent dacite. Bulk rock powder: P065 (XRF, ICP-MS, ¹⁸O_silicate, ⁸⁶Sr/⁸⁷Sr_silicate). AZ. Sample PM93 (193-1191A-1R-1, 64 cm): unaltered, vesicular aphyric coherent dacite. Bulk rock powder: P066 (XRF, ICP-MS, Cl, F, ⁸⁶Sr/⁸⁷Sr_silicate). Sample PM94 (193-1191A-1R-1, 75 cm): unaltered, vesicular aphyric coherent dacite. Bulk rock powder: P067 (XRF, ICP-MS, Cl, F, ¹⁸O_silicate, ⁸⁶Sr/⁸⁷Sr_silicate). Sample PM95 (193-1191A-3R-1, 80 cm): weak alteration of vesicular, aphyric coherent dacite. Bulk rock powder: P068 (XRF, ICP-MS, ¹⁸O_silicate).