Skip to main content

Table 6 Representative analysis of garnet from sandstones of Bhuj Formation calculated on the basis of 12 oxygen atoms

From: Petrography of Middle Jurassic to Early Cretaceous sandstones in the Kutch Basin, western India: Implications on provenance and basin evolution

Sample no.

B-2

B-3

Dataset/Point

14/1

15/1

18/1

27/1

32/1

38/1

43/1

50/1

54/1

58/1

59/1

SiO2

38.5

39.0

38.0

39.0

39.0

35.3

36.8

39.2

37.4

36.4

38.4

TiO2

0.0

0.0

0.0

0.0

0.0

4.2

0.0

0.0

0.0

0.0

0.0

Al2O3

21.7

22.1

21.9

22.5

20.7

19.2

20.9

22.0

20.6

21.2

21.9

Fe2O3

36.4

35.7

37.7

32.5

35.5

25.8

33.7

31.5

35.0

41.9

34.0

MnO

0.5

0.5

0.6

1.6

1.1

0.1

0.8

0.9

1.9

1.2

0.6

MgO

6.4

6.7

6.8

9.1

6.4

6.0

3.8

9.0

2.4

3.5

8.6

CaO

1.8

1.8

0.7

0.7

1.6

0.1

7.1

1.8

7.1

0.7

1.2

Na2O

0.0

0.0

0.0

0.0

0.0

0.2

0.0

0.0

0.0

0.0

0.0

K2O

0.0

0.0

0.0

0.0

0.0

8.5

0.0

0.0

0.0

0.0

0.0

P2O5

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

Total

105.3

105.8

105.7

105.4

104.3

99.4

103.1

104.4

104.4

104.9

104.7

Si

3.0

3.0

3.0

3.0

3.1

2.9

3.0

3.0

3.0

2.9

3.0

Al

2.0

2.0

2.0

2.0

1.9

1.9

2.0

2.0

1.9

2.0

2.0

Fe2 +

2.1

2.1

2.2

1.9

2.1

1.6

2.0

1.8

2.1

2.5

2.0

Ti

0.0

0.0

0.0

0.0

0.0

0.3

0.0

0.0

0.0

0.0

0.0

Mg

0.7

0.8

0.8

1.0

0.7

0.7

0.5

1.0

0.3

0.4

1.0

Mn

0.0

0.0

0.0

0.1

0.1

0.0

0.1

0.1

0.1

0.1

0.0

Na

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

Ca

0.1

0.2

0.1

0.1

0.1

0.0

0.6

0.1

0.6

0.1

0.1

K

0.0

0.0

0.0

0.0

0.0

0.9

0.0

0.0

0.0

0.0

0.0

P

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

Total

7.9

8.1

8.1

8.1

8.0

8.3

8.2

8.0

8.0

8.0

8.1

Almandine

0.7

0.7

0.7

0.6

0.7

0.7

0.6

0.6

0.7

0.8

0.6

Spessartine

0.2

0.3

0.3

0.3

0.2

0.3

0.1

0.3

0.1

0.1

0.3

Pyrope

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

Grossular

0.0

0.1

0.0

0.0

0.0

0.0

0.2

0.0

0.2

0.0

0.0