Quality Control Programs
From Sampling to Database Management
It is critical to convince investors and project financiers that appropriate samples have been collected and that analyses are valid. Monitoring laboratory data improves confidence in ore reserves, drill target selection and management of the company. Quality control programs only add 1% to overall project costs and are a regulatory requirement.
Consulting services include:
- due diligence review of sampling and assay procedures
- sampling design
- sample preparation design
- review of analytical methods
- laboratory audits
- determining appropriate insertion of control standards, duplicates and blanks
- preparation of suitable control samples and statistical analysis of round robin results
- monitoring laboratory accuracy and precision
- identification of sample batches which require re-analysis
- database management
Geochemical Exploration Surveys
From Design to Interpretation
Sample collection is the most important step in a geochemical survey. It is necessary to understand dispersion mechanisms for metals in different conditions and collect appropriate samples. Different topographic and climatic conditions require specialized sampling strategies.
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Consulting services include:
- recommended sampling procedures and data collection strategies
- orientation surveys to determine optimum sampling methods and analytical procedures
- review of laboratory bids
- geochemical maps
- integrated interpretation of geochemical surveys
- introduction of innovative technologies such as selective extractions and the Mobile Metal Ion (MMI) digestion
- in-house short courses
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| Multi-element geochemical maps can be generated to define regional geology and anomalous trends. Factor analysis and cluster analysis are particularly effective for summarizing trends in multi-element data sets. |
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Anomalous trends are identified by "normalizing" analytical data for changes in lithology, overburden thickness or terrain variations. Improved anomaly recognition increases the probability of finding mineralization.
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