Geological Modelling and Resource Estimation

GeoMine GeoModeler (GeoModeler), the mining and exploration industry’s high performance 3D geological software tool for resource modelling and estimation, is engineered to model and visualize large and complex deposits. Underpinning GeoModeler is its innovative 2-in-1 hybrid modeling kernel that supports both 3D Block Modeling with Sub-blockingand 2D Gridded Seam Modeling (GSM) schemes.

Traditional 3D Block Modeling software has difficulty in handling gridded seam models where model extent in XY plane can be orders of magnitude larger than the Z-extent (e.g. phosphate or coal seam deposits) and hence a separate GSM based package is usually called for. With GeoModeler, this is no longer the case as both modeling schemes are supported simultaneously.

In addition to the hybrid modeling kernel, GeoModeler also sports a state-of-the-art Dynamic Anisotropy interpolation system that allows the search volume to be calibrated to follow the trend of the mineralization precisely. It is an ideal tool for preparing accurate resource estimates as input to subsequent mine design optimizations. To learn more about the DA system provided by GeoModeler, please refer to the following article what Dynamic Anisotropy is and why we should care.

The latest addition to GeoModeler’s tool chest is Unfolding for Unfolded Interpolation of Folded Orebody. Unfolding  is a space transformation technique that transforms composites and block model to a flattened space. Interpolation happens in the flattened space and then the interpolated block attributes are transformed back to the original (folded) space. This technique is best suited for a folded orebody where the orebody was folded due to tectonic pressure after it had been deposited. Since attributes are assumed to have existed prior to folding, interpolation in unfolded space would tend to result in a more accurate resource estimate.

In summary, GeoModeler is a comprehensive geological software tool that natively supports both 3D Block Modeling with Sub-blocking and 2D Gridded Seam Modeling schemes with both implicit modelling (RBF) and explicit modelling (Kriging and IDW with Dynamic Anisotropy or Unfolding) techniques.

GeoModeler Key Benefits

GeoModeler Feature List

Import assays, attributes (categorical or continuous) and geological structures including faults; Desurvey drill holes with choices of 5 desurvey algorithms; Composite and color-code drill holes by lithology, attributes or assays; Create custom DDH attributes as input to subsequent block model interpolations; Create planned drill holes for drilling planning.

model vein or seam type deposits with non-axis aligned Mine North and non-axis aligned block models; model large deposits with Octree universe; model dissiminated multi-orebody deposits with multiple block models in a single GeoModeler session; Create block model masks for open-pit deposits; Create and assign user-defined attributes to block models with a visual formula/scripting editor. manually assign rock code to parts of a block model using a solid mesh; includes integrated Block Model Reconciliation.

Create Gridded Seam Models (GSMs) from drill holes; Resource estimation for GSMs; Perform Magin Ranking on GSMs; Converting GSMs to Block Models for Lerchs & Grassman pit optimization for deeply inclined multi-seam GSMs.

sub-module: Automatically create lithology wireframes; Create real-time grade shells to quickly evaluate what-if scenarios.

sub-module: Model anisotropy with 3D per-mesh variograms and non-axis aligned ellipsoidal search radii.

Create normal faults, reverse faults, strike-slip faults or  combinations of the above fault types.

Apply faults to orebody wireframes and use them as constraints in pit or stope optimization.

Interpolate block model grades with high performance inverse distance power, anisotropic RBF (radial basis functions), nearest neighbour and multi-threaded Kriging methods (simple, ordinary, ordinary LVM) with or without geological domains. Includes an option to use powerful surface based dynamic anisotropy search strategy for more accurate resource estimates.

Create distribution bar charts and curves for drill hole assays, composites and block models; Validate block models using Histogram Comparison Plot, Q-Q & P-P plots and Swath plots.

classify and export estimated blocks into measured, indicated and inferred categories for public reporting; Advanced custom report generation with ThreeDify’s formula-based Block Model Report Generator.

Imports drill holes in CSV or Microsoft Acess database format (*.mdb)

Create Dynamic Anisotropy (DA) surfaces (either manually or automatically from a wireframe) for use in DA or Unfolded Interpolations.

Create gridded topographical or geological surfaces from drill hole collars, categorical attributes, block models and/or an imported 2.5D mesh.

System Requirements:

CPU: Quad Core
RAM: 8 Gb

CPU: 3rd Gen i7 or Up
RAM: 16 Gb

“… We have been very impressed with the constant evolution of your product and incorporating our needs into your new releases. We have also been very impressed with the level of service and support provided by your support engineer…”
Ben Connor
Exploration Coordinator / G.I.S. Dept. Manager