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Table 3 Average chemical composition (major components in wt.%) of Paleozoic mudrocks

From: Mineralogy and diagenetic impacts on chemical composition of Paleozoic mudrocks, southwestern Sinai, Egypt

Age

Fms.

S. No.

SiO2

Al2O3

Fe2O3

MgO

CaO

Na2O

K2O

P2O5

SO3−2

Cl−

L.O.I

Paleozoic

Late Paleozoic

Early Carboniferous

Magharet El Maiah

Min.

39.24

17.02

0.62

0.31

0.34

0.08

0.53

0.07

2.8

0.02

8.08

Max.

67.40

17.13

0.70

0.50

10.00

0.65

1.12

0.18

17.42

0.24

12.44

Average

56.67

17.08

0.65

0.35

3.92

0.34

0.83

0.11

8.20

0.11

10.20

El Hashash

Average

69.68

24.00

0.38

0.20

0.38

0.06

0.44

0.09

0.06

0.01

3.67

 

Early Paleozoic

Cambro-Ordovician

Adedia

Min.

51.86

18.26

1.17

1.82

0.49

0.50

4.49

0.13

0.04

2.35

5.19

Max.

59.55

22.02

7.61

2.08

0.57

2.37

5.54

0.21

3.17

7.93

0.21

Average

55.71

20.14

4.39

1.95

0.53

1.44

5.02

0.18

0.13

2.76

6.56

Abu

Hamata

Min.

48.69

17.82

5.29

1.54

0.56

0.13

5.31

0.24

0.06

0.05

4.03

Max.

56.78

23.57

7.34

2.53

1.48

3.81

5.75

0.60

1.50

4.29

7.92

Average

53.39

20.65

6.27

2.02

0.88

1.61

5.46

0.38

0.57

1.62

5.34