Probability calculations for three-part mineral resource assessments
Links
- Document: Report (776 kB pdf)
- Related Works:
- Techniques and Methods 7-C14: User’s Guide for MapMark4—An R Package for the Probability Calculations in Three-Part Mineral Resource Assessments
- Scientific Investigations Report 2018-5149: Effect of Size-Biased Sampling on Resource Predictions from the Three-Part Method for Quantitative Mineral Resource Assessment—A Case Study of the Gold Mines in the Timmins-Kirkland Lake Area of the Abitibi Greenstone Belt, Canada
- Companion File: Calculation Scripts (12.0 kB txt)
- Download citation as: RIS | Dublin Core
Abstract
Three-part mineral resource assessment is a methodology for predicting, in a specified geographic region, both the number of undiscovered mineral deposits and the amount of mineral resources in those deposits. These predictions are based on probability calculations that are performed with computer software that is newly implemented. Compared to the previous implementation, the new implementation includes new features for the probability calculations themselves and for checks of those calculations. The development of the new implementation lead to a new understanding of the probability calculations, namely the assumptions inherent in the probability calculations. Several assumptions strongly affect the mineral resource predictions, so it is crucial that they are checked during an assessment. The evaluation of the new implementation leads to new findings about the probability calculations,namely findings regarding the precision of the computations,the computation time, and the sensitivity of the calculation results to the input.
Suggested Citation
Ellefsen, K.J., 2017, Probability calculations for three-part mineral resource assessments: U.S. Geological Survey Techniques and Methods, book 7, chap. C15, 14 p., https://doi.org/10.3133/tm7C15.
ISSN: 2328-7055 (online)
Table of Contents
- Abstract
- Introduction
- Method
- Properties of the Probability Calculations
- Discussion
- Conclusions
- Acknowledgments
- Software and Reproducibility
- References Cited
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Probability calculations for three-part mineral resource assessments |
| Series title | Techniques and Methods |
| Series number | 7-C15 |
| DOI | 10.3133/tm7C15 |
| Year Published | 2017 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Crustal Geophysics and Geochemistry Science Center |
| Description | Report: iv, 14 p.; Calculation Scripts: 12.0 kb txt |
| Larger Work Type | Report |
| Larger Work Subtype | USGS Numbered Series |
| Larger Work Title | Section C: Computer Programs in Book 7 Automated Data Processing and Computations |
| First page | 1 |
| Last page | 14 |
| Public Comments | Chapter 15 of Section C: Computer Programs in Book 7 Automated Data Processing and Computations |
| Online Only (Y/N) | Y |
| Google Analytic Metrics | Metrics page |