Location

Depth (cm)

Zircon

Tourmaline

Rutile

ZTR index

Average ZTR

First terrace

0 - 30

36

15

7

59.18

54.18

30 - 80

47.36

22.79

7.01

77.81

80 - 130

15

5

3

25.56

Second terrace

0 - 18

8.33

2.08

24.99

32.07

48.22

18 - 50

11.67

19.47

11.68

53.59

50 - 90

5.55

15.26

18.04

59.00

Alluvial plain and the piedmont

0 - 15

5

29

24

66.67

36.25

15 - 40

10

17

14

35.65

40 - 70

4.9

21.3

6.54

30.96

70 - 120

2

8

6

11.72