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OVB B INB B <br /> •.'•: <br /> 5x .... <br /> .................. 5 <br /> 4 4 <br /> 3 3 <br /> 2 2 <br /> • <br /> 1 2 3 4 5 6 7 4 5 6 7 <br /> OVB Cu INB Cu <br /> 30 ................................. ................ <br /> 30 X. <br /> 10 <br /> 5 5 <br /> 3 � 3 <br /> 1 2 4 1 2 3 4 <br /> OVB Pb INB Pb <br /> 100 <br /> 100 <br /> 8 8 <br /> 6 6 <br /> 4 4 <br /> • <br /> 2 2 <br /> 1 2 3 4 5 6 7 1 2 3 4 5 7 <br /> Figure 6-7. Overburden and interburden boron (B), copper (Cu) and lead (Pb) <br /> data (means and ranges) for seven core hole locations at Nucla Mine. <br /> 6-33 Revised 11 /01/86 <br />