Table 4: Chemical compositions (XRF) of pottery sherds.
Oxides | Concentrations of elemental oxides (%) | ||||||
UMR-01 | UMR-02 | UMR-03 | KDR | SH-01 | SH-02 | SH-03 | |
SiO2 | 56.855 | 57.388 | 54.441 | 58.671 | 64.952 | 62.125 | 53.743 |
Al2O3 | 20.470 | 16.207 | 18.632 | 16.530 | 15.221 | 14.506 | 17.62 |
Fe2O3 | 11.406 | 11.433 | 15.079 | 13.136 | 9.803 | 11.083 | 14.154 |
K2O | 5.179 | 1.749 | 1.013 | 2.711 | 2.528 | 1.749 | 2.196 |
CaO | 3.271 | 3.867 | 3.296 | 2.589 | 2.902 | 3.014 | 4.210 |
TiO2 | 1.309 | 2.241 | 1.629 | 1.919 | 2.096 | 3.014 | 2.017 |
Mn2O3 | 0.077 | 0.234 | 0.153 | 0.230 | 0.235 | 0.218 | 0.206 |
MgO | 0.765 | 2.472 | 2.543 | 1.848 | 1.112 | 1.714 | 1.819 |
SO3 | 0.329 | 1.755 | 1.147 | 0.739 | 0.717 | 1.001 | 2.014 |
Na2O | 0.068 | 0.105 | 0.180 | 0.047 | 0.047 | 0.204 | 0.398 |
P2O5 | 0.156 | 1.985 | 1.439 | 0.0794 | 0.769 | 0.502 | 0.996 |
Cl | 0.284 | 0.455 | 0.389 | 0.298 | 0.188 | 0.510 | 0.546 |