Cube Grade Control System GCX II – Open Pit

Overview

The Cube Grade Control system (GCX II) is an integrated, Surpac based grade estimation and reporting system for Open Pit Mines. • Easy to use, repeatable framework • Logical step-by-step process flow • External controls for self-customisation • Choice of estimation methods • Auditable • Statistical and visualisation tools • Full documentation

GCX II Process Flow – Open Pit

Reconciliation

Dig Block Evaluation

Slice and Display of Block model and Relevant Data for Dig Block Delineation

Creation / Adjustment of Dig Block Outlines

Evaluation / Adjustment of Dig Block Outlines

Stamping and Reporting of Dig Blocks

Plotting of Dig plans / Markup Plans

Model Depletion and EOM Reporting

Campaign Modelling

Definition of Campaign Modelling Area

Domain Wireframing for Campaign Area

Model Stamping and Composite Extraction

Composite Validation

Grade Estimation

Update Master Block model

Easy to Use

• Menu system within familiar Surpac environment • Logical step-by-step process flow • Local site terminology incorporated as appropriate

External Controls Attributes associated with material types and cut-offs are handled externally via customisable parameter sheets in csv format. • Flexibility to modify material categories if related attributes such as grade cut-offs are

changed • Up to 8 elements and 40 material types

Definition of Campaign Modelling Area

Campaign modelling areas can be defined using a polygon (typical of a e.g. blast hole environment) or a 3D solid (grade control RC).

Domain Wireframing for Campaign Area A variety of visualisation tools are available to aid in domain delineation.

Model Flagging and Composite Extraction Automated stamping of zone codes, density and composite extraction speeds the modelling process as well as maintaining an audit trail for future reference.

Composite Validation Extreme grades at either end of the sample population can be examined numerically as well as spatially, Distribution allows multiple percentile or grade threshold bins to be examined.

• Uses the Cube Estimation Management System – ECX – Easy to use, repeatable and auditable – Multi-element and multi-domain environments – Allows dynamic estimation into folded domains – External parameters saved and loaded from Excel – Wide range of useful outputs e.g. Kriging Neighbourhood Analysis,

Grade Estimation

Update Master Block model

The master grade control model can be easily updated via a single step. The master block model acts as a single repository for all of the applicable grade control information for a pit/deposit.

Open Cut: Slice and Display of Block model for Dig Block Delineation

A variety of layers can be loaded either automatically or manually to aid in the formation of dig block outlines.

Create / Evaluate / Adjust of Dig Block Outlines Dig blocks once outlined can be manipulated many times allowing the user to test various design permutations, as well allowing overriding of the material type via a subjective adjustment if required.

Stamping and Reporting of Dig Blocks Reports are generated in a number of formats with optional content for uploading to material tracking systems.

Plotting of Dig plans / Markup Plans

AutoPlot is used as the primary plotting tool, with all data including styles files and entities being built in the background, this allows the user to point and shoot to create a dig plan.

Handy tools A number of auxiliary and statistical tools are available under the Extras menu.

GCX for Underground

The Cube Grade Control system (GCX II) is also available for UG mines, with both 2D and 3D estimation routines available

About Cube

Cube Consulting provides specialist consulting services and software systems to the global mining industry. We are a quality team of geologists and mining engineers with a wide range of skills and experience, applicable from advanced exploration projects through to operational mines across multiple commodities. Established in 2000 in Perth, Western Australia, Cube Consulting has grown to become a world class Mining Services Company, working with our customers to add value to their projects through considered and practical advice. • Geological Services based on extensive operational and field based experience. • Mine Engineering Consulting Services supporting sound commercial decisions. • Technology solutions focused on Mine Grade Control and Reconciliation. Our goal is to ensure our customers succeed through practical and professional advice.