Tabela 5.1 - Composições químicas das diversas fácies do Granito Bannach
(Continua)
Elementos Maiores GC BAMzG ABMzG BMzP
Fácies ADR-136I ADR-136C ADR-218 ADR-67 ADR-26 Média ADR-55B ADR-241 ADR-55A ADR-136A ADR-100A Média ADR-61 ADR-45B Média
SiO
(%) 58.12 69.68 69.71 70.39 70.49 70.07 71.77 72.36 72.55 72.92 73.75 72.67 74.89 75.70 75.30
TiO
2.41 0.66 0.85 0.56 0.59 0.67 0.42 0.42 0.38 0.27 0.26 0.35 0.22 0.33 0.28
Al
O
9.17 13.09 12.07 13.09 13.01 12.82 13.17 12.75 12.66 13.20 12.54 12.86 12.18 11.11 11.65
Fe
O
t 6.87 1.87 3.68 2.71 2.66 2.73 2.28 2.09 2.52 1.39 1.24 1.90 1.80 1.90 1.85
FeO 8.86 2.36 2.10 1.00 1.32 1.70 0.90 0.95 0.23 0.45 0.76 0.66 0.10 0.64 0.37
MnO 0.29 0.08 0.10 0.06 0.07 0.08 0.05 0.05 0.04 0.03 0.04 0.04 0.03 0.03 0.03
MgO 2.48 0.55 0.72 0.46 0.49 0.56 0.31 0.35 0.26 0.23 0.20 0.27 0.16 0.25 0.21
CaO 3.31 2.31 2.40 2.01 1.92 2.16 1.54 1.66 1.32 1.24 1.07 1.37 0.86 0.85 0.86
Na
O 1.92 3.39 3.34 3.38 3.41 3.38 3.40 3.20 3.12 3.35 3.25 3.26 3.14 2.60 2.87
K
O 3.10 3.73 3.21 4.14 4.27 3.84 4.57 4.56 5.09 5.08 5.01 4.86 4.55 4.61 4.58
P
O
0.79 0.19 0.22 0.16 0.18 0.19 0.11 0.11 0.09 0.07 0.06 0.09 0.03 0.06 0.05
PF 1.00 0.80 0.70 0.90 0.70 0.78 0.50 0.60 0.80 0.80 0.80 0.70 1.10 0.80 0.95
Total 99.31 98.97 99.33 98.97 99.26 98.94 99.12 99.21 99.09 99.08 99.06 99.04 99.07 98.95 98.97
Traço
Ba (ppm) 427.60 1514.00 1373.40 1338.00 1408.47 889.50 988.20 1056.90 1515,3* 689.30 905.98 641.20
Rb 202.20 135.70 150.30 173.30 153.10 180.00 168.40 182.90 191.60 260.50 196.68 183.50
Sr 107.10 261.50 211.20 212.00 228.23 150.10 166.60 146.00 190* 107.70 142.60 117.20
Zr 1683.60 453.70 394.70 341.40 396.60 321.70 317.60 317.90 177.10 213.90 292.78 276.40
Nb 65.20 23.80 21.90 17.50 21.07 18.40 21.30 18.00 17.70 22.90 19.66 10.10
Y 233.70 54.00 55.00 64.20 57.73 63.70 57.50 51.50 36.30 55.00 52.80 27.50
Ga 26.50 21.30 20.30 20.90 20.83 23.70 19.40 22.00 19.80 19.80 20.94 18.60
Sc 33.00 10.00 9.00 9.00 9.33 7.00 8.00 6.00 4.00 4.00 5.80 3.00
Th 15.80 14.30 18.90 15.30 16.17 30.40 22.50 37.60 24.50 34.30 29.86 41.20
U 6.70 4.20 2.80 4.60 3.87 3.70 3.30 3.50 6.10 7.40 4.80 4.20
V 129.00 28.00 21.00 22.00 23.67 11.00 11.00 10.00 10.00 8.00 10.00 6.00
La 157.90 74.70 88.90 67.00 76.87 106.80 99.70 185,3* 69.10 84.50 90.03 197.00
Ce 378.90 170.40 185.30 139.30 165.00 238.30 210.20 381.10 146.10 180.10 231.16 409.80
Pr 50.63 18.13 19.71 15.63 17.82 23.88 21.20 35.21 14.43 17.87 22.52 35.81
Nd 206.80 65.70 70.40 58.40 64.83 84.30 75.50 108.50 48.40 58.40 75.02 103.90
Sm 43.80 11.90 12.20 10.60 11.57 13.20 13.20 15.40 7,9* 10.30 13.03 11.80
Eu 2.43 2.65 2.32 2.40 2.46 1.82 1.80 1.79 1.83 1.21 1.69 1.29
Gd 39.32 9.78 10.26 10.26 10.10 11.00 10.17 10.91 6,06* 8.32 10.10 6.70
Tb 6.40 1.68 1.58 1.64 1.63 1.85 1.71 1.63 1.04 1.34 1.51 0.92
Dy 36.72 8.91 9.08 9.62 9.20 10.29 9.45 8.77 6.08 8.34 8.59 4.51
Ho 7.54 1.86 1.82 2.03 1.90 2.16 2.00 1.75 1.18 1.74 1.77 0.91
Er 21.53 5.45 5.42 5.71 5.53 6.14 5.57 4.94 3.42 5.40 5.09 2.62
Tm 3.18 0.84 0.83 0.83 0.83 0.96 0.80 0.79 0.55 0.90 0.80 0.40
Yb 17.90 4.65 4.84 5.01 4.83 6.17 4.54 4.81 3.11 5.51 4.83 2.53
Lu 2.58 0.75 0.74 0.78 0.76 0.94 0.69 0.71 0.45 0.85 0.73 0.44
Total 975.63 377.40 413.40 329.21 373.34 507.81 456.53 761.61 309.65 384.78 414.69 778.63
K
O/Na
O 1.61 1.10 0.96 1.22 1.25 1.13 1.34 1.43 1.63 1.52 1.54 1.49 1.45 1.77 1.61
Fe
O
t 16.72 4.49 6.01 3.82 4.13 4.61 3.28 3.15 2.78 1.89 2.08 2.64 1.91 2.61 2.26
FeOt 15.04 4.04 5.41 3.44 3.71 4.15 2.95 2.83 2.5 1.7 1.88 2.37 1.72 2.35 2.04
Fe
O
/FeO 0.78 0.79 1.75 2.71 2.02 1.82 2.53 2.20 10,98* 3.09 1.63 2.36 17.99 2.97 10.48
FeOt/(MgO+FeOt) 0.86 0.88 0.88 0.88 0.88 0.88 0.90 0.89 0.91 0.88 0.90 0.90 0.91 0.90 0.91
A/CNK 0.73 0.95 0.90 0.96 0.95 0.94 0.99 0.96 0.97 0.99 0.99 0.98 1.04 1.03 1.04
K/Rb 127 228 229 204 220 211 225 231 220 160 209 208
Rb/Sr 1.9 0.5 0.7 0.8 0.7 1.2 1.0 1.3 1.0 2.4 1.4 1.6
Ca/Sr 221 63 68 65 65 73 71 65 47 71 65 52
Sr/Ba 0.25 0.17 0.15 0.16 0.16 0.17 0.17 0.14 0.13 0.16 0.15 0.18
Ba/Rb 2.1 11.2 9.1 7.7 9.3 4.9 5.9 5.8 7.9 2.6 5.4 3.5
Rb/Zr 0.1 0.3 0.4 0.5 0.4 0.6 0.5 0.6 1.1 1.2 0.8 0.7
(La/Yb)
6.33 11.52 13.18 9.59 11.43 12.42 15.75 27,63* 15.94 11.00 13.78 55.85
(La/Sm)
2.33 4.05 4.70 4.08 4.28 5.22 4.88 7.77 5.65 5.30 5.76 10.78
(Gd/Yb)
1.82 1.74 1.75 1.69 1.73 1.47 1.85 1.88 1.61 1.25 1.61 2.19
Eu/Eu* 0.18 0.75 0.63 0.70 0.70 0.46 0.47 0.42 0,81* 0.40 0.44 0.44
Siglas: GC – Granito Cumulático; BAMzG - biotita-anfibólio-monzogranito equigranular grosso; ABMzG – anfibólio-biotita-monzogranito equigranular grosso;
BMzP – biotita-monzogranito porfirítico; LMzG – leucomonzogranito equigranular grosso; LMzMp – leucomonzogranito equigranular médio precoce;
LMzMt – leucomonzogranito equigranular médio tardio; LMzF – leucomonzogranito equigranular fino.
* valores excluídos na média composicional devido sua anormalidade.