Ibity

Tsarasaotra.

Antsahakely.

Granite

Monzonitic

Granite

IB-16A

IB-16A

IB-16A

IB-16A

TS-6

ANH-1

Oxide

KUR-1

KUR-2

BI-4

SPH-1

MT-2

BI-3

SiO₂

30.4

30.4

30.1

29.9

29.7

29.2

TiO₂

28.9

30.8

34.6

34.8

34.9

30.1

Al₂O₃

1.87

2.11

2.56

2.34

2.32

6.40

FeO

2.06

2.11

2.17

1.90

2.21

3.16

MnO

0.26

0.28

0.19

0.11

0.29

0.13

MgO

0.02

0.02

0.08

0.06

0.06

0.43

CaO

26.3

26.0

26.6

26.7

25.6

25.5

Total

89.8

91.6

96.2

95.9

95.0

94.9

Titanite geobarometer

P (Kbar)

2.5

2.7

3.2

3.0

2.9

7.1