GEOLOGY CONTROLS VARIOGRAMS, NOT SOFTWARE Variograms are often treated as a software output. But in reality, they are a mathematical expression of geological history. Every nugget, sill, range, and search radius is not created by the software — they already exist in the deposit. The software only helps us reveal them. Nugget reflects what happens at very short distances:micro-variability, local heterogeneity, sampling support, and sometimes measurement uncertainty. Sill represents the total variability captured within the geological domain. Range defines the limit of continuity — the distance where samples stop behaving as part of the same geological process. And the search radius is not an arbitrary setting. Whether using spherical or ellipsoidal search, the objective remains the same: Find the spatial continuity that geology created. Structures, weathering, sedimentation, tectonics, mineralization, remobilization, and alteration have been shaping these patterns for thousands of years. What we model today is the result of geological events recorded through time. Our responsibility is not to force continuity. Our responsibility is to understand it. Because at the end: Software calculates. Data records.Geology decides. Variograms do not invent continuity. They reveal the continuity that nature has already written. #Geostatistics #Variography #ReserveEstimation #ResourceModeling #Mining #Geology #OreReserve #BlockModel #SpatialContinuity #OrdinaryKriging #MiningEngineering #Exploration #GeologicalModeling #NickelMining #MinePlanning #Zvenia