Building on sound, detailed geological interpretation and orebody modelling, Snowden's Resource Estimation group works in all commodities from diamonds through coal to industrial minerals, base and precious metals, and in a wide range of geographic and geological environments. Our experience covers grade control, resource estimation, geostatistics, auditing and review, and risk analysis studies. Snowden prides itself on its ability to add value to client's projects through quantified confidence in results.

Services include:

• Statistics and geostatistics
• Classical statistics
• Frequency distributions
• Correlation and regression
• Mineralisation indicator grades
• Grade outliers and topcuts
• Semivariogram modelling
• 3D semivariogram visualisation
• Block size and orientation
• 2D and 3D block kriging
• State-of-the-art interpolation techniques
• Conditional simulation and risk analysis
• Resource confidence classification
• Resource estimation and grade control
• Database setup, validation and maintenance
• Section plotting and interpretation
• Conventional polygonal resource estimation procedures
• Variography
• Block modelling using geostatistical techniques
• Recoverable resource estimation
• Optimum drilling density / pattern
• Optimum bench height
• Grade reconciliation
• Grade tonnage relationships
• Resources and reserve audits 
• Oil reservoir characterisation

For more information the following brochures are available:

• JORC Code checklist
• Resource Estimation
• Sampling and QAQC

• Feasibility Studies
• Risk Mitigation