Pulacayo Project Feasibility Study - Apogee Silver
Pulacayo Project Feasibility Study - Apogee Silver
Pulacayo Project Feasibility Study - Apogee Silver
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<strong>Pulacayo</strong> 1 000 t/d Phase I <strong>Feasibility</strong> <strong>Study</strong> - NI 43-101 Technical Report<br />
090644-3-0000-20-IFI-100<br />
Figure 12.47: Mercator 1/4 Core Check Samples 2012 - Zn % (N=24)<br />
Collar coordinates for 14 drill holes completed during the 2011 oxide zone drilling program<br />
were checked by Mercator during the April 2012 site visit. A Garmin Map 60 handheld GPS<br />
unit was used to collect collar coordinate check values and these were then compared to<br />
validated resource database collar file values. Excellent correlation exists between the two<br />
data sets with respect to UTM easting and Northing values, with the total range in Easting<br />
variation being -2.1 m to +2.9 m and the total range for Northing being -4.5 m to +1.8 m.<br />
Values in the site visit elevation data set range between +7.9 m and +14.5 m above<br />
corresponding database collar values. This variation is systematic and project database<br />
values acquired using differential GPS equipment are considered to be more accurate than<br />
hand held GPS values obtained during the site visit. Tabulated results of the drill collar<br />
checking program are presented in Table 12.2 and Mercator is of the opinion that these<br />
results adequately confirm database collar locations.<br />
Table 12.2: Collar Coordinate Check Program Results<br />
Drillhole ID<br />
GPS East<br />
(m)<br />
GPS North<br />
(m)<br />
GPS<br />
Elev.<br />
(m)<br />
Database<br />
East (m)<br />
Database<br />
North (m)<br />
Database<br />
Elev. (m)<br />
East<br />
Change<br />
(m)<br />
North<br />
Change<br />
(m)<br />
Elev.<br />
Change<br />
(m)<br />
11PUD232 740,001.5 7,744,735.7 4,416.9 740,000.6 7,744,734.7 4,402.4 1.0 1.0 14.5<br />
11PUD231 739,999.0 7,744,589.3 4,414.7 739,999.7 7,744,587.5 4,403.3 -0.7 1.8 11.4<br />
11PUD239 740,047.9 7,744,595.6 4,409.7 740,048.6 7,744,596.8 4,394.0 -0.8 -1.2 15.7<br />
PUD224 740,098.6 7,744,858.2 4,383.5 740,100.0 7,744,862.1 4,376.0 -1.4 -3.9 7.5<br />
11PUD241 740,197.2 7,744,580.3 4,344.5 740,199.3 7,744,583.1 4,333.0 -2.1 -2.8 11.5<br />
PUD217 740,248.2 7,744,349.9 4,345.3 740,250.0 7,744,350.0 4,335.4 -1.8 -0.1 9.9<br />
PUD045 740,094.7 7,744,434.1 4,313.5 740,094.3 7,744,435.7 4,305.6 0.4 -1.6 7.9<br />
TWP Sudamérica S.A. Av. Encalada 1257 Of. 801, Santiago de Surco Lima 33, Perú (51-1) 4377473<br />
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