Table 3 Repeatability INAA measurements in obsidian matrix
From: Mediterranean and Near East obsidian reference samples to establish artefacts provenance
Mean | St. Dev. | Min | Max | CV% | |
|---|---|---|---|---|---|
As | 23.3 | 2.0 | 21.5 | 26.1 | 8.5 |
Ba | 330 | 8 | 319 | 339 | 2.5 |
Ce | 211 | 2 | 209 | 212 | 0.7 |
Co | 1.36 | 0.11 | 1.23 | 1.51 | 8.1 |
Cr | 0.845 | 0.073 | 0.710 | 0.982 | 8.6 |
Cs | 18.8 | 0.4 | 18.2 | 19.1 | 2.0 |
Eu | 2.03 | 0.07 | 1.92 | 2.11 | 3.4 |
Fe | 24193 | 336 | 23690 | 24646 | 1.4 |
Hf | 11.2 | 0.5 | 10.4 | 11.8 | 4.7 |
La | 33.4 | 0.7 | 32.1 | 34.0 | 2.1 |
Nd | 1048 | 19 | 1027 | 1069 | 1.8 |
Rb | 276 | 11 | 264 | 291 | 4.1 |
Sb | 2.85 | 0.15 | 2.65 | 3.02 | 5.3 |
Sc | 2.26 | 0.11 | 2.09 | 2.32 | 4.9 |
Se | 6.20 | 0.19 | 6.07 | 6.42 | 3.1 |
Sm | 12.4 | 0.30 | 10.0 | 10.5 | 2.4 |
Sr | 300 | 8 | 292 | 310 | 2.5 |
Ta | 3.41 | 0.07 | 3.27 | 3.46 | 2.0 |
Th | 31.7 | 0.8 | 30.3 | 32.3 | 2.5 |
U | 6.81 | 0.04 | 6.76 | 6.85 | 0.7 |
Yb | 4.97 | 0.11 | 4.83 | 5.07 | 2.2 |
Zn | 71.0 | 2.3 | 67.1 | 73.8 | 3.2 |
Zr | 421 | 12 | 401 | 429 | 2.9 |