MineSight Implicit Modeler (MSIM) has been innovating more and more and incorporating several new features since its release. One of the latest additions is the True Thickness tool.

One of the improvements incorporated into the tool is the ability to easily restore a previous setup. The output – Files tab now has the option to save settings. With this, it is possible to quickly and easily change the MSIM setups, exporting and importing the parameter files.

In this issue, the modeling of two groups of layers that are separated by a discontinuity will be addressed. In each of these groups, a reference layer was chosen. The modeling is carried out from drilling information for these layers and the others will be built using True Thickness (TTHK), from the stacking technique.

For this technique, all boreholes must have a complete stratigraphic sequence. As many deposits have gaps, it is important to first prepare the data by running the Seam Compositing tool within MSTorque, so that the missing gaps will be generated.

After compositing, the first step in MSIM is to create the base layer S33 and calculate the corresponding true thickness.

The calculation and storage of true thickness is configured in the Output – True Thickness panel.

The second step is to calculate the top of the layer S33 and the thickness of the intercalations. For this, the interception method is Top, which calculates the top of the intervals that match the filter.

The last panel is Output – True Thickness, where the interleaving thickness will be stored in the MSTorque database. The thickness of the intercalations is calculated from the generated surface to the bottom of layer 31, and the layer 33 values are rewritten in a predefined item (INBTHK) for each drill hole that has this sequence. And these steps are repeated until the entire stratigraphy is built.

In the image below, a region is highlighted where it is possible to visualize a part of the stratigraphic sequence. Drillholes show true thickness, layer dip, and interlayer thickness (from left to right). The latter is equivalent to 0.00 when no separations between the layers and the layer above are recorded.

As can be seen, these options in MSIM allow you to create surfaces for your deposit more quickly and easily, as well as save information about the true thickness and the intercalations in the drillholes. Ease of use and the possibility of continuously refining the result to better adapt to the deposit also benefit the final product.

If you have questions about using MineSight Implicit Modeler to apply the content of this bulletin, or any other task, please contact our MineSight/Prominas Technical Support (support@prominas.net). And if you still do not have this tool and are interested in obtaining more information, contact us via email. client-relations@prominas.net.