Rocks

Ibity

Tsarasaotra

Ibity

Tsarasaotra

Antsahakely

Granite

Monzonitic

Granite dyke

Granite

Monzonitic

Granite dyke

Granite

Spl

IB-8

IB-8

IB-8

IB-16

TS-6

TS-6

TS-2

TS-2

IB-9A

IB-14

TS-1

TS-6

TS-2

TS-4

ANH-1

ANH-1

Point

PL-3

PL-1C

PL-3

PL-1A

PL-2

PL-2A

PL-1

PL-2

KF-3

KF-1

KF-3

KF-1

KF-1

KF-2

KF-4

KF-5

SiO2

64.1

67.3

64.7

69.1

68.3

65.7

65.0

63.9

65.9

62.6

64.4

63.6

45.6

64.4

64.6

61.3

TiO2

0.01

-

0.01

0.00

0.02

0.00

0.02

0.03

0.03

0.10

-

0.01

Al2O3

23.1

25.4

23.3

22.2

21.9

23.3

22.8

24.1

18.5

19.3

19.9

19.3

35.3

19.7

19.0

19.9

FeO

0.05

0.04

0.02

0.03

0.09

0.08

0.01

0.07

-

0.03

0.04

0.03

3.33

0.02

-

0.04

MnO

-

-

-

-

0.00

-

0.01

-

-

MgO

-

0.00

-

0.02

-

0.00

-

-

0.00

0.01

-

0.43

-

CaO

1.52

3.02

2.04

0.24

0.73

1.86

2.58

4.28

0.01

-

0.59

0.04

0.04

0.01

Na2O

10.25

5.19

9.48

9.58

10.3

9.95

9.70

8.62

0.88

0.28

1.61

0.58

0.17

1.26

0.48

0.34

K2O

0.19

0.11

0.17

0.07

0.02

0.13

0.13

0.35

15.9

18.3

14.5

16.5

11.4

16.1

17.1

17.5

Total

99.1

101

100

101

101

101

100

101

101

101

101

100

96.3

102

101

99.0

Si

2.84

2.87

2.84

2.95

2.93

2.85

2.85

2.78

3.00

2.92

2.93

2.95

2.22

2.94

2.97

2.90

Ti

-

0.00

-

-

0.00

0.00

-

0.00

0.00

0.00

0.00

0.00

0.00

-

-

0.00

Al

1.20

1.27

1.21

1.12

1.11

1.19

1.18

1.24

1.00

1.06

1.07

1.05

2.02

1.06

1.03

1.11

Fe

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

-

0.00

0.00

0.00

0.14

0.00

-

0.00

Mn

-

-

-

-

-

-

-

0.00

-

-

0.00

-

-

-

-

-

Mg

-

-

0.00

-

0.00

-

0.00

-

-

0.00

0.00

-

0.03

-

-

-

Ca

0.07

0.14

0.10

0.01

0.03

0.09

0.12

0.20

0.00

-

0.03

0.00

-

0.00

0.00

-

Na

0.88

0.43

0.81

0.79

0.86

0.84

0.82

0.73

0.08

0.03

0.14

0.05

0.02

0.11

0.04

0.03

K

0.01

0.01

0.01

0.00

0.00

0.01

0.01

0.02

0.92

1.09

0.84

0.97

0.71

0.94

1.00

1.05

An

7.50

24.1

10.5

1.38

3.8

9.3

12.7

21.1

0.04

-

2.8

0.2

-

0.2

0.04

-

Ab

91.4

74.8

88.4

98.2

96.1

89.9

86.5

76.9

7.77

2.29

14.0

5.1

2.2

10.6

4.10

2.85

Or

1.09

1.07

1.06

0.45

0.14

0.80

0.73

2.03

92.2

97.7

83.2

94.8

97.8

89.2

95.9

97.2