depth zinc iron
.2 86 3.4
2.0 77 2.9
5.8 91 3.1
6.5 86 3.4
7.6 81 3.2
12.2 87 2.9
16.4 94 3.2
20.8 92 3.4
22.5 90 3.1 
29.0 108 4.0
31.7 112 3.4
38.0 101 3.6
41.5 88 3.7
60.0 99 3.5
61.5 90 3.4
72.0 98 3.5
104.0 70 4.8