43-101 2007 Technical Report On The San Antonio Project, Baja ...
43-101 2007 Technical Report On The San Antonio Project, Baja ...
43-101 2007 Technical Report On The San Antonio Project, Baja ...
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Derry, Michener, Booth & Wahl Consultants Ltd. Page 50Figure 17.2Log Normal Histogram of 2 m Composite data from Las Colinas DepositLOG Normal Histogram5242Frequency Count31211000.010 0.100 1.000 10.000Software By GemcomReal Value17.6 High-Grade Assay Capping<strong>The</strong> assay populations within the mineralized domains were examined to determine whether thedistribution of grades contains erratic high grade values which could have a disproportionateinfluence in the estimation of the average grade of the deposit, ie: whether the deposit is“nuggety”. A common practice with nuggety gold deposits is to cap any identified erratic highgrades by resetting all values above a certain threshold value to the threshold value.For the raw (uncomposited) assay samples in the Planes database a total of four samples returnedassay grades > 30 g/t Au (with the highest being 41.8 g/t) and a total of 39 samples grade > 10g/t Au. Although the four assay samples grading greater than 30 g/t were capped at 30 g/t prior tocalculating composites, in line with common industry practice, it was noted that with the LosPlanes database this capping to 30 g/t did not have a measurable effect on the overall resource.For the raw (uncomposited) assay samples in the Colinas database a total of 23 samples returnedassay grades > 2.0 g/t Au (with the highest being 5.71 g/t). No assay capping was applied to theColinas assays prior to compositing.