Border analysis
The application provides the Border analysis tool in Isatis.neo.
The aim of the task is to study the behavior of a numerical variable of interest (a grade for example) among different domains. These domains can be lithologies, alteration areas, grade shells, grain size classes, etc.
Different graphics are computed to show the evolution of the variable of interest according to the distance between a sample in one domain and a sample in another. The analysis can be omnidirectional, or a preferential direction can be provided.
Examples of application:
- To determine if the domain boundaries are Hard or Soft (and the distance in the soft boundary case), the graphics of Contact analysis are suitable.
- To choose the estimation method between Multiple Indicator Kriging (often corresponding to a mosaic model) and Uniform Conditioning (often corresponding to a diffusive model), the Border effect curves should be a decision aid.
- To choose the lithotype rule in order to perform Pluri-Gaussian Simulations (PGS), it can be useful to check the Transition probabilities plots.
- To validate the defined domains after a classification, the Border effect plots may be of interest.
