MRE – Mineral Resource Estimation by linear geostatistics | Training course
Learn the fundamental concepts of geostatistics to estimate your resources confidently.
Objectives
MODULE 1: UNIVARIATE
- Statistical and stationarity analysis of mineral and metal grade
- Understand the theory of variographical analysis
- Perform directional variogram modelling on the drillhole data
- Interpolate grade to the block space by block ordinary kriging
- Gain some insights about the weight distribution by kriging
- How to define a sound neighbourhood for interpolation
- Learn and practice the validation tools for estimated grade
- Generate grade-tonnage curves and tables
- Create a basic workflow of mineral resource estimation in Isatis.neo
MODULE 2: MULTIVARIATE
- Learn the application of PCA in the mineral resource estimation
- 3D modelling of a non-stationary grade variable by trend-based variants of kriging
- Perform cross-variogram modelling on the correlated grades
- Perform cross-covariance modelling on the correlated grades (purely heterotopic datasets)
- Jointly interpolate the correlated grades to the block space by ordinary cokriging, collocated cokriging and rescaled cokriging, implemented in Isatis.neo
APPLICATION DOMAIN
- Estimating short-term resources
- Primary estimation of long-term resources
- Producing resource model for mining design
- Spatial analysis of drillhole data
- Single and multi-variate geostatistics
Who should attend
Professionals seeking a sound theoretical and practical knowledge of mining geostatistics.
Course content
MODULE 1: UNIVARIATE
- The importance of geostatistics in Mineral Resource Estimation
- Extrapolatory Data Analysis (EDA) and spatial analysis of data
- Stationarity analysis
- Regularizing data: compositing and declustering
- Variographical analysis: variogram cloud and parameters of experimental variogram
- Variogram modelling: automatic, semi-automatic, manual and interactive
- Theory of kriging and mining related variants: ordinary and block
- Kriging Neighbourhood Analysis (KNA)
- Cross-validation
- Validation of estimation
- Grade-tonnage table and curves
MODULE 2: MULTIVARIATE
- Principal Component Analysis (PCA)
- Kriging non-stationary variable: kriging with external drift or universal kriging
- Cross-variogram and cross-covariance
- Ordinary cokriging
- Collocated cokriging
- Rescaled cokriging
TRAINING MATERIALS:
- Theory: Slides will be communicated.
- Practice: Training licence of Isatis.neo geostatistical software will be attributed to the participants; as well as a typical mining dataset.
Prerequisites
- This training is prepared for geologists who want to discover geostatistical tools frequently used in the Mineral Resource Estimation.
- Basic knowledge of resource concepts would be appreciated: grade, tonnage, cut-off, etc.
- To extend your knowledge, we recommend that you also attend the complementary advanced short course Recoverable Resource Estimation
Training – Registration policy
Qualiopi label, a guarantee of the quality of our training
Our training courses are Qualiopi certified. That means that they comply with a unique French national quality reference system. This recognition guarantees the quality of the training courses we deliver and allows our trainees to be eligible for various French funding.
Registration Fee
Class fees include one set of course materials and one full Isatis license valid for one month.
Attendees are invited to use their own laptop for computer exercises. A temporary demo version of the software package(s) used for this purpose (i.e. Isatis, Isatis.neo or Kartotrak) will be freely supplied by Geovariances.
For courses to be held in Geovariances only, if you are unable to bring your own laptop during the training session, be sure to inform your sales contact and Geovariances will endeavour to provide you with a computer for the session duration.
Please note that admission will be only confirmed on receipt of your formal purchase order and after full payment.
Payment
Geovariances will invoice your company for the approved course cost amount in full unless cancellation notice has been given 10 working days before the course date.
Payment is required prior to the course to confirm the registration.
Payment options: credit card (American Express is not accepted – please provide with your card details) or wire transfer to BRED Fontainebleau HDV – IBAN number: FR76 1010 7003 2700 0302 7055 623.
Venue
Courses can be organized in or outside Geovariances premises (hotel, client premises). Please refer to the course description for more details.
Training hours are from 9:00 am to 5:00 p.m. unless otherwise specified.
Accomodation
Fee does not cover hotel accommodation. Attendees should make their own reservations directly.
Cancellation
No refund will be made for cancellation notified by a registered participant to Geovariances within 2 weeks (10 working days) prior to the course or for ’no shows’.
Attendee can be substituted.
Geovariances reserves the right to cancel a session if the minimum number of registrations is not reached and to schedule an additional session if the number of registrations is in excess of the maximum number of attendees.
Queries
Should you have any question or need further information, do not hesitate to contact us.