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Answer the question that will be asked during our next live Podcast – The Mining Experience on Wednesday March 24th at 4:00pm ET / 1:00pm PT. The Podcast will be live on Zoom and Facebook.
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In this tip of the month, we will see how to create a 3D block model from composites. This will allow you to quickly find the locations of high grade ore and to generate a tonnage and grade report in just a few clicks.
- From the Block Modeling module found in the Progeox Category, click the “Create Block” (BLKB) command to start modeling the block model.
- Input the block dimensions in the X, Y and Z directions.
- On plan view, if there is not a pre-defined modeling limit, then select the “Pick” option to define the 2D area defining the contour of the block model.
- Select a modeling limit. There is not a wrong answer, the right option depends on the data of the block model. Depending on the spacing of the composites, input an appropriate value in the “Maximum search distance” field.
- From the drop-down list, select a grade value for the color code. These parameters can be edited from the Promine Options or by typing in the command PROMDEF.
- Select the target layer on which the block model will be inserted.
- Select the composites from which the block model will be created with:
- If the composites are saved in a database, then select the option “Composite in database”. Then, under “Sample database”, upload the database and configure the appropriate fields.
- If the composites are already inserted in the drawing, select the option “Composite in drawing” then select “Pick composites” to select them directly from the drawing.
- Click OK to insert the 3D block model.
- Select the “Blocks Filter” (BLKFL) command to filter out blocks. Select one of the following operations:
- Visible: Show the blocks
- Invisible: Hide the blocks
- Delete: Completely delete the blocks from the drawing
- Under “Parameters”, select a property and an operation (<, > or =) from the drop-down lists. Then, input the value. The parameters will then be applied on the selected blocks.
- Select the “Compute Blocks” (BLKC) to quickly generate a resource report:
- You can input up to 3 main grades and 6 secondary grades (a factor of the main grade).
- Select a variable or a fixed density.
- You can insert the totals of the grades found in the 3D block model.
- Input the report name and a scale of the report.
- Click OK to insert the report. The report will display the total tonnages of ore, waste as well as the average grades of ore and waste.