Elemental ratio | Neogene mudrocks (n = 20) | Ranges in sediments from felsic sources(a) | Ranges in sediments from mafic sources (a) | Upper continental crust (b) |
La/Sc | 1.92 - 3.43 | 2.50 - 16.3 | 0.43 - 0.86 | 2.21 |
Th/Sc | 0.82 - 1.46 | 0.84 - 20.5 | 0.05 - 0.22 | 0.79 |
Th/Co | 0.83 - 1.45 | 0.67 - 19.4 | 0.04 - 1.40 | 0.63 |
La/Co | 2.07 - 3.68 | 1.80 - 13.8 | 0.14 - 0.38 | 1.76 |