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This practical online session is built for exploration and resource geologists, mine planning engineers, and technical leaders who need higher confidence in resource estimates. We’ll walk an end-to-end geostatistical workflow - from data validation and compositing to variography, KNA, kriging strategy, and resource classification - using examples aligned to JORC/NI 43-101 (and related codes).
Session Agenda
- Introduction - Goals, workflow map, and how each stage affects classification and reporting confidence.
- Statistical Analysis & Geological Domain Validation - Descriptive stats, distribution checks, contact tests, and domain boundary verification.
- Composite Length Analysis - Selecting composite length, sensitivity checks, and effects on variance/variograms.
- Outlier & Top-Cut Strategy - Detecting outliers, selecting capping approaches, and documenting mean/variance impacts.
- Spatial Analysis & Declustering - Cell declustering, swath plots, and removing clustered drilling bias.
- Anisotropy Mapping - Building anisotropy maps and defining geology-aligned search ellipsoids.
- Variogram Analysis & Cross-Validation - Experimental variograms, nested structures, diagnostics (ME, MAE, RMSE, QQ).
- KNA (Kriging Neighbourhood Analysis) - Discretization, block size decisions, avoiding negative weights, optimal sample counts.
- Kriging Methods - When/how to use SK, OK, lognormal kriging, non-stationary SK, KED, and cokriging - key assumptions and pitfalls.
- Resource Classification - Practical proxies (kriging variance, slope of regression, drill spacing, pass counts) combined with geological confidence.
Who Should Attend
Resource/exploration geologists, geostatisticians, mine planning engineers, technical managers, QA/QC specialists, and consultants responsible for block models and reporting.
Session Format
Delivered live online (two hours) with an interactive Q&A. Advance registration is required. Session recordings will not be publicly available afterward.
Participation Guidelines
Register early (limited seats). Bring questions and, if possible, a short description of your deposit style and data challenges to map concepts to your context. A stable internet connection is recommended for live demo segments.