Make sure the direction selected honors your search ellipsoid definition. The output is a string file which will mimic each triangle as a polygon with dip in d1 and dip direction in d2.ģ Add block model attributesadd appropriate block model attributes to store values for dip and dip_dir. STEPS1 Create a trend surfacethis surface should honor theĭifferent variations in dip and dip direction (trend) of the mineralization.Ģ Create the trend outlinescreate a string file from the trend DTM surface. PERFORMING DYNAMIC ANISOTROPYThis process uses mainly block model attributes to store the orientation of the search ellipsoid and consider these parameters during the block value estimation. GEOVIA Surpac provides the effective tools to perform dynamic anisotropy in a conventional geostatistical framework. Dynamic anisotropy should mainly be based on the structural geology rather than the artefact of the domain wireframe. In Surpac, you can perform dynamic anisotropy to define the search parameters for Inverse distance, Nearest Neighbour, Ordinary Kriging and Simple Kriging. But when this grade continuity within the domain is folded, the estimation can be biased by the misalignment of the search definition to the direction of the grade continuity. The traditional estimation process is to use a single search ellipsoid within a domain. Dynamic anisotropy interpolation is an estimation method which takes into consideration the local variation of the domain orientation into the block estimation. A variety of solutions can be used to reduce the bias in the search parameters during block model estimation, one of which is dynamic anisotropy interpolation.
We hope that you not only find this guide helpful, but that you are also encouraged to submit your own tips to us at DYNAMIC ANISOTROPYGrade estimation for undulating or folded deposits can often be challenging. This eBook is a guide to help you get the most out of Surpac by consolidating the 5 useful hints and tips recently published on the GEOVIA Blog. GEOVIA Surpac is the worlds most popular geology and mine planning software, supporting open pit and underground operations and exploration projects in more than 120 countries.Īs one of the leading geology and mine planning packages, Surpac is used by geologists, surveyors and engineers across the mining cycle for all types of commodity and orebody.
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TOP 5 TIPS IN GEOVIA SURPAC VOL 1 USEFUL TIPS TO HELP YOU GET THE MOST OUT OF YOUR SOFTWARE