Resource Estimation
Resource Estimation is a key process in mining and exploration where specialists calculate how much valuable material (like gold, copper, or other minerals) exists in a particular area. It's similar to estimating how many cookies are in a jar, but for minerals underground. This process helps companies decide if a mining project will be profitable and plan their operations. Other terms for this include Mineral Resource Estimation, Ore Resource Estimation, or Resource Calculation. This is a crucial skill in mining because it directly impacts business decisions and investment planning.
Examples in Resumes
Completed Resource Estimation for three major gold deposits in Nevada
Led team responsible for Mineral Resource Estimation of copper project in Chile
Updated Resource Estimation models using latest drilling data
Performed Ore Resource Estimation for feasibility study of silver mine
Typical job title: "Resource Geologists"
Also try searching for:
Where to Find Resource Geologists
Professional Organizations
Online Communities
Job Boards
Example Interview Questions
Senior Level Questions
Q: How do you validate a resource estimation model?
Expected Answer: They should explain the importance of comparing estimates against actual production data, using different estimation methods to cross-check results, and ensuring the model meets industry reporting standards. Should mention the importance of peer review and documentation.
Q: How do you handle uncertainty in resource estimation?
Expected Answer: Should discuss using different scenarios (optimistic, pessimistic, realistic), statistical confidence levels, and how they communicate risks to management. Should mention importance of data quality and quantity.
Mid Level Questions
Q: What factors do you consider when choosing block sizes for a resource model?
Expected Answer: Should explain how mining method, drilling spacing, and deposit type influence block size selection. Should mention practical considerations like equipment size and operational requirements.
Q: How do you determine appropriate cut-off grades?
Expected Answer: Should discuss considering economic factors like metal prices, processing costs, and recovery rates. Should mention that cut-off grades can change with market conditions.
Junior Level Questions
Q: What is the difference between a mineral resource and mineral reserve?
Expected Answer: Should explain that resources are geological estimates while reserves are economically mineable portions of resources. Should mention different confidence categories (measured, indicated, inferred).
Q: What basic data is needed for resource estimation?
Expected Answer: Should mention drilling data, sampling results, geological mapping, and assay results. Should understand the importance of data quality control.
Experience Level Indicators
Junior (0-3 years)
- Basic geological data handling
- Understanding of sampling methods
- Familiarity with mining software
- Basic statistical analysis
Mid (3-7 years)
- Independent resource modeling
- Quality control procedures
- Technical report writing
- Project evaluation
Senior (7+ years)
- Complex geological modeling
- Resource estimation sign-off
- Due diligence reviews
- Team management and mentoring
Red Flags to Watch For
- No understanding of geological principles
- Lack of experience with mining software
- Poor understanding of sampling methods
- No knowledge of industry reporting standards
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