Trace elements BM MK
As 3.979316 5.150252
Pb < 1.94624 135.2637
W 1.58596 1.09105
Ta 2.047425 16.3794
Sb < 3.33448 241.7498
Sn 1.969125 5.35602
Nb 102.75888 82.48672
Zr 808.41852 784.7286
Rb 236.83219 259.69244
Zn 3133.143 3052.806
Cu 92.6666 87.07465
Ni 40.07784 74.6548
Cr 255.2066 636.306
V 244.79429 235.2714
Ga 49 40.91835
Ge <1 0.69405
Br 41 6,7
Sr 1452,72362 1462,8707
Y 77 90
Mo < 3 < 3
Ag <0.93096 <0.93096
Cd < 1 < 1
Te 3 100
I 180 <30
Cs 600 540
Ba 2,9 510
La 119 1
Ce <1 100
Pr 100 46
Nd 55 83
Hf <9.7 57
Pt < 2 < 2
Au 17 < 2
Hg 7 19
Th 600 60
U 7.8 7.4
Co < 53.3528 94.3776
Table 4: Chemical analyses of the trace and rare earth elements of clay mixtures (ppm).