PROGRAMA GEOLOGIA DO BRASIL Contrato CPRM- UFPA Nº

Tabela 3.11: Análises químicas para as rochas do Tonalito Arco Verde da Folha Marajoara.
q p j
Amostra F-57 / 92-36 MAR-148A MAR-149 F-15 / F-15 F-52 / F-52A F-57 / 92-34 MAR-117 F-58 / FA-58-1 F-62 / 92-26 F-21 / 92-10
SiO2 64.2 66.55 66.59 68.21 68.26 68.9 68.96 69.31 69.43 70.54
TiO2 0.38 0.56 0.43 0.36 0.37 0.34 0.38 0.28 0.32 0.29
Al2O3 17.17 15.26 16.13 15.29 14.83 15.53 15.53 14.78 15.38 14.55
Fe2O3 4.37 4.88 4.13 3.98 4.09 3.59 3.71 2.98 3.54 3
FeO 0 0 0 0 0 0 0 0 0 0
MgO 1.63 1.26 1.09 0.89 1.09 0.91 0.97 0.79 0.79 0.75
CaO 4.94 4.3 3.88 3.38 3.68 3.77 3.69 3.56 3.2 2.52
Na2O 4.72 3.74 4.39 4.21 3.83 4.5 4.22 4.26 4.8 4.16
K2O 1.38 1.82 1.72 2.03 3.07 1.29 1.34 1.58 1.38 3.12
P2O5 0.22 0.16 0.16 0.24 0.21 0.17 0.14 0.2 0.15 0.11
MnO 0.08 0.06 0.06 0.05 0.04 0.03 0.05 0.02 0.04 0.05
PF 1.3 1.2 0.8
Total 99.09 99.89 99.78 98.64 99.47 99.03 99.79 97.76 99.03 99.09
Ba 608.1 336.6 343.8
Be 1 1 1
Co 35.8 48.9 46
Cs 2.2 2.8 1
Ga 21.9 23.9 20
Hf 5.9 6.7 4.1
Nb 10.9 10.7 15.9 6.2 9 14 7.27
Rb 95.7 104.7 61.1
Sn 2 3