Sample | SiO2 | Al2O3 | Fe2O3 | CaO | MgO | Na2O | K2O | Cr2O3 | TiO2 | MnO | P2O5 | LOI | Total | Rb | Ba | Th | U | Nb | Ta | La | Ce | Pr | Nd |
PB21 | 54 | 14.8 | 10.5 | 8.79 | 6.9 | 4 | 0.57 | 0.04 | 1.46 | 0.14 | 0.28 | 0.25 | 101 | 13.4 | 265 | 2.7 | 0.6 | 31 | 1.5 | 24 | 39.9 | 4.6 | 18 |
PB22 | 53 | 14.5 | 10.7 | 8.84 | 6.5 | 3.96 | 0.51 | 0.04 | 1.47 | 0.14 | 0.3 | 0.43 | 99.9 | 111 | 251 | 2.6 | 0.6 | 35 | 1.7 | 23 | 41.9 | 4.8 | 19 |
PB24A | 54 | 14.6 | 10.4 | 8.25 | 6.6 | 4.32 | 0.8 | 0.03 | 1.67 | 0.14 | 0.39 | -0.1 | 101 | 19.3 | 337 | 4 | 0.7 | 41 | 2 | 31 | 55.2 | 6 | 23 |
PB24B | 49 | 14.5 | 10.4 | 7.69 | 6.9 | 4.14 | 2 | 0.03 | 2.24 | 0.14 | 0.74 | 2.36 | 99.9 | 62.6 | 662 | 5.1 | 1.2 | 73 | 4.8 | 39 | 73.2 | 8.6 | 35 |
PB24C | 49 | 14.5 | 10.7 | 7.94 | 8.3 | 4.87 | 1.72 | 0.04 | 2.23 | 0.14 | 0.52 | 0.36 | 101 | 49.9 | 585 | 3.9 | 0.9 | 62 | 4.1 | 29 | 53.7 | 6.4 | 26 |
PB24D | 50 | 14.4 | 11 | 8.44 | 8.9 | 4.18 | 1.21 | 0.04 | 1.83 | 0.15 | 0.54 | 0.53 | 101 | 33.2 | 473 | 4 | 0.9 | 55 | 3.2 | 33 | 60.6 | 7.3 | 28 |
PB25A | 49 | 14.7 | 10.5 | 8.07 | 7.8 | 4.58 | 1.54 | 0.03 | 1.96 | 0.15 | 0.61 | 0.78 | 100 | 46.3 | 563 | 4.9 | 1.1 | 62 | 3.9 | 35 | 64.8 | 7.5 | 30 |
PB25B | 53 | 14.6 | 10.3 | 8.61 | 5.7 | 4.01 | 0.52 | 0.03 | 1.64 | 0.12 | 0.35 | 1.33 | 100 | 12.1 | 289 | 3.6 | .0.8 | 38 | 1.8 | 30 | 51.2 | 5.9 | 23 |