Rudnick, R. L., Gao, S. X. Composition of the continental crust, 2003 [ref]
| component | units | upper | middle | lower | total |
|---|---|---|---|---|---|
| SiO2 | wtp | 66.6 | 63.5 | 53.4 | 60.6 |
| TiO2 | wtp | 0.64 | 0.69 | 0.82 | 0.72 |
| AI2O3 | wtp | 15.4 | 15 | 16.9 | 15.9 |
| FeO | wtp | 5.04 | 6.02 | 8.57 | 6.71 |
| MnO | wtp | 0.1 | 0.1 | 0.1 | 0.1 |
| MgO | wtp | 2.48 | 3.59 | 7.24 | 4.66 |
| CaO | wtp | 3.59 | 5.25 | 9.59 | 6.41 |
| Na2O | wtp | 3.27 | 3.39 | 2.65 | 3.07 |
| K2O | wtp | 2.8 | 2.3 | 0.61 | 1.81 |
| P2O5 | wtp | 0.15 | 0.15 | 0.1 | 0.13 |
| Li | ppm | 24 | 12 | 13 | 16 |
| Be | ppm | 2.1 | 2.3 | 1.4 | 1.9 |
| Sc | ppm | 14 | 19 | 31 | 21.9 |
| V | ppm | 97 | 107 | 196 | 138 |
| Cr | ppm | 92 | 76 | 215 | 135 |
| Co | ppm | 17.3 | 22 | 38 | 26.6 |
| Ni | ppm | 47 | 33.5 | 88 | 59 |
| Cu | ppm | 28 | 26 | 26 | 27 |
| Zn | ppm | 67 | 69.5 | 78 | 72 |
| Ga | ppm | 17.5 | 17.5 | 13 | 16 |
| Rb | ppm | 82 | 65 | 11 | 49 |
| Sr | ppm | 320 | 282 | 348 | 320 |
| Y | ppm | 21 | 20 | 16 | 19 |
| Zr | ppm | 193 | 149 | 68 | 132 |
| Nb | ppm | 12 | 10 | 5 | 8 |
| Cs | ppm | 4.9 | 2.2 | 0.3 | 2 |
| Ba | ppm | 628 | 532 | 259 | 456 |
| La | ppm | 31 | 24 | 8 | 20 |
| Ce | ppm | 63 | 53 | 20 | 43 |
| Pr | ppm | 7.1 | 5.8 | 2.4 | 4.9 |
| Nd | ppm | 27 | 25 | 11 | 20 |
| Sm | ppm | 4.7 | 4.6 | 2.8 | 3.9 |
| Eu | ppm | 1 | 1.4 | 1.1 | 1.1 |
| Gd | ppm | 4 | 4 | 3.1 | 3.7 |
| Tb | ppm | 0.7 | 0.7 | 0.48 | 0.6 |
| Dy | ppm | 3.9 | 3.8 | 3.1 | 3.6 |
| Ho | ppm | 0.83 | 0.82 | 0.68 | 0.77 |
| Er | ppm | 2.3 | 2.3 | 1.9 | 2.1 |
| Tm | ppm | 0.3 | 0.32 | 0.24 | 0.28 |
| Yb | ppm | 2 | 2.2 | 1.5 | 1.9 |
| Lu | ppm | 0.31 | 0.4 | 0.25 | 0.3 |
| Hf | ppm | 5.3 | 4.4 | 1.9 | 3.7 |
| Ta | ppm | 0.9 | 0.6 | 0.6 | 0.7 |
| Pb | ppm | 17 | 15.2 | 4 | 11 |
| Th | ppm | 10.5 | 6.5 | 1.2 | 5.6 |
| U | ppm | 2.7 | 1.3 | 0.2 | 1.3 |