Rock Type | Anorthosite | Gabbroic anorthosite | Anorthositic gabbro | |||||||||||||||
S.No | 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
Sample No | 14 | 16 | 21 | 42 | 56 | 28 | 12 | 18 | 15 | 21 | 24 | 31 | 9 | 11 | 59 | 66 | 82 | 75 |
SiO2 | 46.38 | 47.12 | 48.23 | 50.23 | 44.95 | 49.02 | 46.42 | 46.72 | 46.95 | 45.72 | 48.23 | 45.02 | 49.92 | 47.26 | 48.26 | 44.23 | 47.23 | 46.97 |
TiO2 | 0.03 | 0.04 | 0.03 | 0 | 0.02 | 0.1 | 0.19 | 0 | 0.08 | 0.09 | 0.11 | 0.08 | 0.46 | 0.09 | 0 | 0.07 | 0 | 0.36 |
Al2O3 | 29.98 | 31.5 | 30.92 | 31.03 | 32.82 | 29.96 | 29.76 | 30.82 | 30.23 | 31.05 | 29.05 | 31.06 | 25.02 | 27.02 | 27.12 | 31.02 | 26.95 | 24.12 |
Fe2O3t | 0.25 | 1.87 | 0.85 | 0.09 | 0.45 | 0.84 | 0.34 | 1.29 | 2.38 | 2.42 | 3.26 | 2.57 | 5.25 | 4.9 | 0.32 | 3.23 | 1.52 | 6.74 |
Feo | 1.25 | 0.49 | 2.2 | 1.6 | 2.4 | 2.76 | ||||||||||||
MnO | 0.16 | 0.04 | 0.02 | 0.02 | 0.01 | 0.01 | 0.27 | 0.1 | 0.04 | 0.04 | 0.05 | 0 | 0.09 | 0.07 | 0.23 | 0.04 | 0.1 | 0.09 |
MgO | 0.48 | 1.26 | 0.5 | 0.4 | 0.97 | 0.11 | 2.6 | 2.09 | 3.11 | 2.96 | 3.26 | 2.56 | 2.56 | 2.42 | 4.95 | 2.37 | 5.21 | 2.21 |
CaO | 16.02 | 14.28 | 15.23 | 12.83 | 15.89 | 12.83 | 14.95 | 14.81 | 14.32 | 14.16 | 13.92 | 15.23 | 11.54 | 13.02 | 14.42 | 15.25 | 13.96 | 13.2 |
Na2O | 2.73 | 1.96 | 1.99 | 3.5 | 2.26 | 4.61 | 2.35 | 2.25 | 2.02 | 2.16 | 2.16 | 2.23 | 3.23 | 3.33 | 1.78 | 2.62 | 2.3 | 3.97 |
K2O | 0.09 | 0.11 | 0.11 | 0.08 | 0.06 | 0.09 | 0.2 | 0.09 | 0.1 | 0.1 | 0.1 | 0.08 | 0.59 | 0.28 | 0.13 | 0.03 | 0.24 | 0.28 |
P2O5 | 0.67 | 0.01 | 0.01 | 0.3 | 0.01 | 0.02 | 0.34 | 0.15 | 0.01 | 0.01 | 0.02 | 0.01 | 0.08 | 0.01 | 0.33 | 0.01 | 0.02 | 0.01 |
Total | 98.04 | 98.19 | 97.89 | 98.97 | 97.44 | 97.59 | 99.62 | 99.92 | 99.24 | 98.71 | 100.16 | 98.84 | 98.74 | 98.4 | 99.94 | 98.87 | 100.29 | 97.95 |
CIPW | ||||||||||||||||||
Q | 0.00 | 2.85 | 2.97 | 2.31 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.66 | 0.00 | 1.58 | 0.00 | 0.68 | 0.00 | 0.00 | 0.00 |
C | 0.00 | 2.22 | 0.00 | 2.58 | 0.17 | 0.00 | 0.00 | 0.45 | 0.79 | 1.67 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Or | 0.53 | 0.65 | 0.65 | 0.47 | 0.36 | 0.53 | 1.18 | 0.53 | 0.59 | 0.59 | 0.59 | 0.47 | 3.49 | 1.66 | 0.77 | 0.18 | 1.42 | 1.66 |
Ab | 19.06 | 16.59 | 16.84 | 29.62 | 12.21 | 27.93 | 18.00 | 19.04 | 17.09 | 18.28 | 18.28 | 13.26 | 27.33 | 23.53 | 15.06 | 10.81 | 19.18 | 23.55 |
An | 69.28 | 70.78 | 75.11 | 61.69 | 78.77 | 60.79 | 70.06 | 72.50 | 70.98 | 70.19 | 68.93 | 74.50 | 52.03 | 57.95 | 65.63 | 72.79 | 62.50 | 47.17 |
Ne | 2.19 | 0.00 | 0.00 | 0.00 | 3.74 | 6.00 | 1.02 | 0.00 | 0.00 | 0.00 | 0.00 | 3.04 | 0.00 | 2.52 | 0.00 | 6.16 | 0.16 | 5.44 |
Di | 3.05 | 0.00 | 0.28 | 0.00 | 0.00 | 0.59 | 1.47 | 0.00 | 0.00 | 0.00 | 0.00 | 0.55 | 2.69 | 5.09 | 2.94 | 2.11 | 5.17 | 11.88 |
Wo | 0.83 | 0.00 | 0.00 | 0.00 | 0.00 | 0.70 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.88 |
Hy | 0.00 | 3.15 | 1.12 | 1.03 | 0.00 | 0.00 | 0.00 | 1.28 | 6.17 | 0.86 | 8.12 | 0.00 | 5.13 | 0.00 | 11.39 | 0.00 | 0.00 | 0.00 |
Ol | 0.00 | 0.00 | 0.00 | 0.00 | 1.69 | 0.00 | 4.20 | 2.89 | 1.11 | 4.57 | 0.00 | 4.29 | 0.00 | 2.57 | 0.00 | 3.45 | 7.56 | 0.00 |
Il | 0.06 | 0.08 | 0.04 | 0.00 | 0.02 | 0.02 | 0.36 | 0.00 | 0.09 | 0.09 | 0.11 | 0.00 | 0.19 | 0.15 | 0.00 | 0.09 | 0.00 | 0.19 |
Tn | 0.00 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.88 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Pf | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.02 | 0.00 | 0.04 | 0.00 | 0.44 |
Ru | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.04 | 0.05 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
Ap | 1.59 | 0.02 | 0.02 | 0.71 | 0.02 | 0.05 | 0.81 | 0.36 | 0.02 | 0.02 | 0.05 | 0.02 | 0.19 | 0.02 | 0.78 | 0.02 | 0.05 | 0.02 |
Sum | 96.58 | 96.33 | 97.05 | 98.41 | 97.00 | 96.76 | 97.11 | 97.05 | 96.87 | 96.30 | 96.91 | 96.28 | 93.50 | 93.51 | 97.25 | 95.65 | 96.02 | 91.22 |
% Feldspar | 88.88 | 88.02 | 92.60 | 91.78 | 91.34 | 89.25 | 89.25 | 92.07 | 88.66 | 89.05 | 87.80 | 88.23 | 82.85 | 83.14 | 81.46 | 83.78 | 83.10 | 72.37 |
% An | 77.95 | 80.42 | 81.11 | 67.22 | 86.24 | 68.11 | 78.51 | 78.74 | 80.05 | 78.81 | 78.51 | 84.44 | 62.80 | 69.71 | 80.57 | 86.89 | 75.22 | 65.18 |
% Qtz | 0.00 | 2.96 | 3.06 | 2.35 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.68 | 0.00 | 1.68 | 0.00 | 0.70 | 0.00 | 0.00 | 0.00 |
% Olvine | 0.00 | 0.00 | 0.00 | 0.00 | 1.75 | 0.00 | 4.33 | 2.98 | 1.14 | 4.74 | 0.00 | 4.45 | 0.00 | 2.75 | 0.00 | 3.61 | 7.87 | 0.00 |