Geoscience Reference
In-Depth Information
Table 14.1
TCu samples statis-
tics by lithology
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Table 14.2
TCu samples statis-
tics by mineralization type
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Table 14.3
TCu samples statis-
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Table 14.4
SCu samples statis-
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8. All hypogene mineralization was grouped into the final
estimation domain. This was done so because the mine
treats this material as waste.
The set of estimation domains are presumed stationary, and
form the basis of the TCu and SCu grade estimation.
required full validation. To fully check the Cerro Colorado
database, a surface 80 m above the pit's topography as of
January 2003 was obtained and used to select the data lying
below the surface. Samples 80 m above current topography
will not have any significant impact in the resource model,
and so were deemed lower priority. The following approach
was taken:
1. The complete list of intervals to be checked consisted of
286 drill holes, or 60 % of the database. For each one of
these drill holes, the computerized assay information was
checked against the original laboratory certificates. If the
14.1.8
Database Checking and Validation
The database was thoroughly checked and validated. After
an initial spot check, it was determined that the database
