Element | Obtained values | Gao et al. [11] | GEOREM [14] | ||||||
Mean | sd | n | Mean | sd | n | Recom** | sd** | ||
Li | 3.28 | 0.36 | 38 | 3.6 | 0.4 | 57 | 3 | 0.7 | |
Be | 0.44 | 0.15 | 13 | 0.69 | 0.88 | 9 | 0.1 | ||
Mg | 60101 | 6839 | 38 | 58471 | 1517 | 65 | 56400 | 600 | |
P | 109 | 6 | 21 | n.d | 118 | 13 | |||
Sc | 38.9 | 2.6 | 44 | 41 | 1 | 95 | 43 | 3 | |
Ti | 5786 | 598 | 37 | 5532 | 323 | 97 | 5400 | 200 | |
V | 330 | 11 | 39 | 338 | 6 | 91 | 326 | 32 | |
Cr | 394 | 13 | 40 | 403 | 11 | 85 | 392 | 24 | |
Mn | 1341 | 56 | 44 | 1417 | 30 | 17 | 1472 | 77 | |
Co | 54.2 | 2.0 | 37 | 57 | 1 | 78 | 52 | 5 | |
Ni | 176 | 8 | 40 | 190 | 6 | 85 | 178 | 18 | |
Cu | 124 | 4 | 35 | 132 | 6 | 69 | 119 | 12 | |
Zn | 77.6 | 4.9 | 39 | 86 | 5 | 25 | 78 | 17 | |
Ga | 16.0 | 0.7 | 37 | 17 | 1 | 76 | 15 | 2 | |
Rb | 0.22 | 0.03 | 33 | 0.26 | 0.05 | 68 | 0.197 | 0.007 | |
Sr | 106 | 4 | 41 | 104 | 2 | 102 | 109 | 2 | |
Y | 12.2 | 1.0 | 36 | 13.3 | 0.6 | 99 | 14.3 | 1.4 | |
Zr | 12.0 | 1.2 | 36 | 12.9 | 0.6 | 98 | 14 | 1.2 | |
Nb | 0.51 | 0.05 | 40 | 0.48 | 0.04 | 94 | 0.52 | 0.04 | |
Mo | 0.089 | 0.03 | 23 | n.d | 0.075 | 0.011 | |||
Sn | 1.27 | 0.26 | 41 | 0.84 | 0.23 | 9 | 2.3 | 1.3 | |
Sb | 0.55 | 0.15 | 39 | 0.47 | 0.13 | 12 | 0.56 | 0.09 | |
Cs | 0.011 | 0.004 | 21 | 0.0069 | 0.0020 | 31 | 0.007 | 0.002 | |
Ba | 6.31 | 0.44 | 40 | 6.3 | 0.3 | 99 | 6.5 | 0.07 | |
La | 0.59 | 0.05 | 43 | 0.60 | 0.04 | 91 | 0.609 | 0.02 | |
Ce | 1.92 | 0.12 | 45 | 1.9 | 0.08 | 76 | 1.89 | 0.04 | |
Pr | 0.36 | 0.04 | 46 | 0.36 | 0.02 | 78 | 0.37 | 0.02 | |
Nd | 2.29 | 0.20 | 42 | 2.3 | 0.2 | 73 | 2.37 | 0.03 | |
Sm | 1.06 | 0.11 | 37 | 1.1 | 0.1 | 72 | 1.09 | 0.02 | |
Eu | 0.52 | 0.05 | 39 | 0.51 | 0.04 | 78 | 0.517 | 0.005 | |
Gd | 1.59 | 0.17 | 33 | 1.6 | 0.1 | 76 | 1.85 | 0.02 | |
Tb | 0.31 | 0.04 | 30 | 0.32 | 0.03 | 81 | 0.35 | 0.04 | |
Dy | 2.19 | 0.21 | 32 | 2.3 | 0.2 | 78 | 2.55 | 0.02 | |
Ho | 0.50 | 0.06 | 30 | 0.51 | 0.05 | 86 | 0.56 | 0.03 | |
Er | 1.44 | 0.10 | 26 | 1.5 | 0.1 | 80 | 1.7 | 0.02 | |
Tm | 0.21 | 0.02 | 35 | 0.22 | 0.02 | 69 | 0.24 | 0.03 | |
Yb | 1.46 | 0.17 | 34 | 1.5 | 0.1 | 80 | 1.64 | 0.03 | |
Lu | 0.22 | 0.02 | 27 | 0.23 | 0.02 | 63 | 0.248 | 0.009 | |
Hf | 0.49 | 0.10 | 28 | 0.53 | 0.06 | 71 | 0.57 | 0.03 | |
Ta | 0.03 | 0.01 | 40 | 0.032 | 0.01 | 80 | 0.036 | 0.006 | |
Pb | 3.36 | 0.21 | 31 | 3.6 | 0.2 | 78 | 3.7 | 0.3 | |
Th | 0.03 | 0.01 | 44 | 0.028 | 0.01 | 65 | 0.03 | 0.002 | |
U | 0.02 | 0.01 | 31 | 0.032 | 0.01 | 67 | 0.023 | 0.006 | |