Mineral Resource Estimation by linear geostatistics – Module 1: univariate context | Training course

Learn the fundamental concepts of geostatistics to estimate your mineral resources confidently.

Objectives

This course provides a solid foundation in geostatistical methods for mineral resource estimation. The skills you will develop will assist you in:
Estimating long-term and short-term resources,
Producing resource models for mine design,
Conducting spatial analysis of drillhole data.

It comprises two modules that can be taken separately:

  • In Module 1, you will learn and practice the standard workflow for estimating resources in a univariate context. This module covers in-depth data analysis, detailed variographic analyses, block modeling, grade distribution interpolation using kriging, estimation validation, and unbiased grade-tonnage curves for short-term resources.
  • Module 2 allows you to progress into the multivariate context by exploring statistical tools such as Principal Component Analysis, applying kriging and co-kriging methods for estimating multi-element orebodies and obtaining multivariate models respecting the ratio between main metals, oxides, and elements.

Course content

Understand the importance of geostatistics in mineral resource estimation: build a solid foundation for informed decision-making.
Explore and analyze your data effectively using Exploratory Data Analysis (EDA) and spatial data analysis techniques.
Assess data stationarity to ensure consistency and reliability in your estimates.
Prepare your data with confidence using regularization techniques such as compositing and declustering to reduce bias.
Master variographic analysis: variogram clouds, directional variograms, and interpretation of spatial structures.
Model variograms using automatic, semi-automatic, manual, or interactive tools tailored to your needs.
Apply the most relevant kriging methods: ordinary kriging, block kriging, and weight distribution analysis.
Build an optimal sample neighborhood with Kriging Neighbourhood Analysis (KNA) to enhance estimation accuracy.
Validate your models and estimations through cross-validation and robust validation techniques.
Generate grade-tonnage tables and curves to support your technical and economic modeling.

Outlines

  • Balanced learning approach: The course combines theory with practical applications, ensuring concepts are understood and applied effectively.
  • Hands-on software training: Engage in computer-based exercises using Isatis.neo software, reinforcing learning through real-world data scenarios.
  • Personalized feedback: Receive individualized guidance and feedback from experienced trainers during online sessions to support your learning journey.
  • Comprehensive resources: Access detailed course materials, including documentation, journal files, and datasets, to reinforce learning and facilitate application post-training.

Who should attend

Professionals seeking a sound theoretical and practical knowledge of mining geostatistics. 

Prerequisites

  • A basic understanding of resource concepts such as grade, tonnage, and cut-off is recommended.
  • To extend your knowledge, we recommend attending the complementary advanced short course Recoverable Resource Estimation.
  • If you want to extend your skills in estimation within a multivariate context, Module 2 of this course is recommended.