Depth/m

Lithology

Clay mineral analysis/%

K

I

C

I/S

S

Total

Surface rock

Grey mud stone

8

23

8

61

45

70

2480-2550

Dark brown sand stone

5

22

6

67

40

57

2850-2855

Dark brown sand stone

2

28

2

68

40

39

2994-3005

Tanned sand stone

8

25

6

61

40

57

3040-3045

Tanned mud stone

2

32

2

64

40

37