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Table 3 Average compositions of minerals from dyke-type rodingite(131019–2), serpentinite and reaction zones

From: Interplay of irreversible reactions and deformation: a case of hydrofracturing in the rodingite–serpentinite system

 

Dyke-type rodingite (131019–2)

Reaction zone 1

Reaction zone 2

Serpentinite

Di

Chl

Grta

Grtb

Ves

Di

Chl

Ves

Prv

Di

Chl

Srp

Di

Chl

n = 12

n = 8

n = 6

n = 4

n = 22

n = 4

n = 4

n = 13

n = 12

n = 2

n = 9

n = 4

n = 8

n = 9

SiO2

55.07

28.17

38.14

37.05

36.53

54.10

31.70

34.34

54.92

32.04

42.75

55.41

34.85

TiO2

1.91

2.75

2.00

3.89

57.05

Al2O3

19.05

18.61

12.29

14.82

0.38

15.95

6.06

14.56

1.39

11.50

Cr2O3

0.42

Fe2O3

4.67

11.45

FeO

1.38

12.33

4.18

4.80

5.56

15.95

0.51

1.26

4.51

3.11

0.64

3.81

MgO

17.40

23.62

2.45

15.31

30.86

0.85

17.5

31.06

37.12

17.98

34.43

CaO

26.19

0.27

35.62

35.89

36.11

25.30

34.00

40.55

25.89

26.29

Total

100.04

83.44

98.95

99.43

96.09

99.89

84.07

95.09

98.11

99.57

82.17

84.37

100.32

85.01

   

apfu

   

apfu

  

apfu

  

apfu

 

O

6

28

12

12

78

6

28

78

3

6

28

116

6

28

Si

2.00

5.81

2.94

2.94

19.24

2.00

6.24

19.66

2.00

6.41

34.01

2.00

6.73

Ti

 

0.11

0.17

0.79

1.69

0.99

Al

4.63

1.69

1.15

9.20

0.02

3.70

3.96

3.44

1.33

2.62

Cr

0.07

Fe3+

0.27

0.68

Fe2+

0.04

2.13

1.84

0.15

0.92

7.75

0.01

0.04

0.76

2.07

0.02

0.61

Mg

0.94

7.26

1.92

0.85

9.05

0.71

0.95

9.26

44.00

0.97

9.91

Ca

1.02

0.06

2.94

3.05

20.37

1.00

20.87

1.00

1.01

1.02

Σcation

4.00

19.83

7.95

7.99

53.36

4.02

19.91

54.64

2.00

4.00

19.87

81.41

4.01

19.94

XMg

0.96

0.77

   

0.86

0.91

  

0.96

0.92

0.96

0.98

0.94

XGrs

  

0.86

0.63

          

XAdr

  

0.14

0.37

          
  1. aFe3 + −poor garnet
  2. bFe3 + −rich garnet