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The latest Implicit Modelling tools in Maptek™ Vulcan™ provide even greater control over the geological modelling process to ensure robust, accurate results.
Maptek™ Vulcan geological modelling tools support geologists to interpret their project data by quickly providing working models which can be analysed and refined for final quality output.
Implicit Modelling has matured since introduction in Vulcan 9. Tools now handle complex metamorphic terrains with faulting, brecciation and veins.
The fully integrated implicit modelling process manages drilling database, compositing files, implicit models and variography in one program.
Geologists are actively engaged in the whole modelling process – controlling compositing intervals, treatment of missing data, smoothing options and influence over surrounding information. Various algorithms run the automatic processes.
Generation of models is fast, leaving time to analyse output before changing parameters.
It is useful to be able to change one parameter at a time to test for different sensitivities.
With the Vulcan block model as the base for modelling, multi-domain variables provide ultimate control. Bringing more data into the process improves the results. Shared boundaries are always preserved, providing confidence with regards to overlap, double counting or missed holes.
Modelling runs in the background, leaving full access to Vulcan menus during calculations.
Fault blocking is new in Vulcan 10, allowing users to treat lithology or grade data within domains or faults differently, building up a composite model with accurate fault blocks. Users can set up a global control for all fault blocks, or treat each fault block separately.
Vulcan allows grade variables to be used in implicit modelling, bringing project assay and grade data into the process. Users simply define the cut-off and dimension parameters and run the model, then change the cut-off grade and generate new results for comparison.
The new RBF approach runs a different algorithm for different results; geologists can choose the best-fit interpretation for their data.
With kriging, variogram data from the new Vulcan Data Analyser can be used to interactively populate panels for implicit modelling. Vulcan variogram and trending data is easily brought into the geological interpolation process.
Specification files ensure that Vulcan implicit modelling is repeatable and auditable. Models are generated in less time than it would take to digitise a single section. A quick first run over the entire orebody can be a basis for further assessment. Multi-domain models are accurately generated with consistent shared boundaries.
Ongoing development includes finding better algorithms for improved processing speed and data smoothing. Combining and filtering multiple databases before starting the implicit modelling process is also on the roadmap.
Vulcan implicit modelling allows you to be a geologist, not just a spectator in the modelling process.
Geologists know that while their primary data does not change, interpretations can. Checking against the original data ensures the best results.