Element | Obtained values | Gao et al. [11] | GEOREM [14] | ||||||
Mean | sd | n | Mean | sd | n | Recom** | sd** | ||
Li | 4.67 | 0.42 | 65 | 5.0 | 0.4 | 26 | 4.4 | 0.8 | |
Be | 1.24 | 0.36 | 40 | 1.4 | 0.2 | 6 | 1.3 | 0.2 | |
Mg | 45594 | 4910 | 51 | 42682 | 1071 | 25 | 42992 | 121 | |
P | 1281 | 126 | 40 | 1266 | 87 | ||||
Sc | 29.6 | 2.1 | 72 | 31 | 1 | 51 | 33 | 2 | |
Ti | 16165 | 1249 | 39 | 15621 | 453 | 53 | 16300 | 900 | |
V | 319 | 9 | 64 | 329 | 9 | 42 | 308 | 19 | |
Cr | 288 | 9 | 67 | 285 | 14 | 51 | 293 | 12 | |
Mn | 1310 | 58 | 74 | 1345 | 25 | 22 | 1317 | 233 | |
Co | 45.2 | 2.1 | 70 | 47 | 2 | 53 | 44 | 2 | |
Ni | 120 | 7 | 70 | 112 | 9 | 48 | 116 | 7 | |
Cu | 120 | 7 | 72 | 142 | 10 | 52 | 127 | 11 | |
Zn | 114 | 6 | 72 | 107 | 26 | 36 | 102 | 6 | |
Ga | 21.7 | 0.8 | 71 | 21 | 1 | 44 | 22 | 3 | |
Rb | 9.43 | 0.53 | 69 | 10.1 | 0.6 | 49 | 9.2 | 0.04 | |
Sr | 388 | 16 | 72 | 328 | 10 | 53 | 396 | 1 | |
Y | 22.1 | 1.6 | 45 | 23 | 1 | 57 | 26 | 2 | |
Zr | 155 | 11 | 49 | 160 | 8 | 56 | 170 | 7 | |
Nb | 16.9 | 1.2 | 55 | 16.4 | 0.7 | 56 | 18.3 | 0.8 | |
Mo | 4.09 | 0.29 | 62 | n.d | 3.8 | 0.2 | |||
Sn | 2.06 | 0.17 | 58 | 2.6 | 0.6 | 22 | 2.6 | 0.6 | |
Sb | 0.24 | 0.07 | 35 | 0.21 | 0.04 | 10 | 0.3 | 0.13 | |
Cs | 0.10 | 0.01 | 65 | 0.11 | 0.02 | 29 | 0.1 | 0.02 | |
Ba | 129 | 7 | 71 | 128 | 4 | 56 | 131 | 2 | |
La | 15.2 | 0.9 | 63 | 15.6 | 0.6 | 38 | 15.2 | 0.2 | |
Ce | 37.5 | 1.4 | 71 | 37 | 1 | 32 | 37.6 | 0.2 | |
Pr | 5.08 | 0.22 | 68 | 5.0 | 0.3 | 33 | 5.35 | 0.22 | |
Nd | 23.5 | 1.3 | 67 | 24 | 1 | 32 | 24.5 | 0.2 | |
Sm | 5.75 | 0.35 | 59 | 5.8 | 0.5 | 32 | 6.1 | 0.03 | |
Eu | 2.01 | 0.11 | 67 | 2.0 | 0.1 | 28 | 2.07 | 0.01 | |
Gd | 5.50 | 0.34 | 51 | 5.9 | 0.4 | 30 | 6.16 | 0.05 | |
Tb | 0.85 | 0.06 | 40 | 0.86 | 0.06 | 31 | 0.92 | 0.04 | |
Dy | 4.92 | 0.38 | 46 | 4.9 | 0.4 | 33 | 5.28 | 0.05 | |
Ho | 0.91 | 0.07 | 45 | 0.91 | 0.06 | 32 | 0.98 | 0.04 | |
Er | 2.28 | 0.18 | 39 | 2.3 | 0.2 | 28 | 2.56 | 0.02 | |
Tm | 0.29 | 0.04 | 56 | 0.30 | 0.05 | 32 | 0.34 | 0.02 | |
Yb | 1.96 | 0.17 | 41 | 2.0 | 0.2 | 30 | 2.01 | 0.02 | |
Lu | 0.25 | 0.03 | 51 | 0.26 | 0.04 | 29 | 0.279 | 0.003 | |
Hf | 4.02 | 0.31 | 43 | 4.1 | 0.4 | 52 | 4.32 | 0.18 | |
Ta | 0.96 | 0.08 | 54 | 0.94 | 0.07 | 54 | 1.15 | 0.1 | |
Pb | 1.80 | 0.13 | 63 | 1.4 | 0.2 | 43 | 1.7 | 0.2 | |
Th | 1.15 | 0.08 | 53 | 1.18 | 0.09 | 48 | 1.22 | 0.05 | |
U | 0.45 | 0.04 | 56 | 0.44 | 0.03 | 42 | 0.403 | 0.003 | |