O_L-sub-factor

Geological unit

ly-value

Thickness-m

ly.m

O_L-value

Balambo Fn.

3

50

150

1

Qulqula group

4

50

200

1

Recent deposits

10

15

150

1

Avroman Fn.

2

60

120

1

Tanjero Fn.

60

20

1200

3

Shiranish Fn.

500

25

12,500

5

Jurassic formations

2

50

100

1