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Any field from the table used to visualise the drillholes can be selected. Select the field to use to create the correlation from the drop-down menu. A prompt will appear when the correlation is created asking to save the stratigraphy. Any correlations produced using this stratigraphy will not be automatically updated unless it is saved. If no stratigraphy is available, a stratigraphy will be generated from the displayed legend on the drillholes. The stratigraphy relevant to the drillhole selection will be loaded automatically. Select Stratigraphic > Correlation > Correlation. assay, geology, etc.).Ĭreate a stratigraphy that defines the horizons within the vertical sequence. Note: Correlations are automatically updated when edits are made to the stratigraphy or drillholes, so long as the table used to display the drillholes is unchanged (i.e. Correlations are most effect when selecting a row of drillholes. The correlation is only meant as a guide and shows the correlations between connected drillholes - the absence of a connection does not indicate an absence of correlation. Selecting a smaller subset of drillholes will create a more complete correlation for the selected area. Because of this, some correlations may be skipped in a large selection to prevent cluttering. it creates a tree with the shortest edge length that joins up all of the drillholes in the selection). The correlation creates a minimum spanning tree (i.e.
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The correlation tool is also useful for the validation of the drillhole database as crossing correlations may indicate horizons which have been incorrectly logged. Note that it is possible to run the correlation option across multiple databases provided they share the same schema. The information regarding the stratigraphic sequence is obtained from a stratigraphy. The correlation tool is used to create a display of the stratigraphic sequence by joining common horizons found within the drillholes with a correlation.
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Links geophysical data with the appropriate drillholes. Opens a new correlation view window containing the drillholes in the current selection.Ĭreates a Stratigraphy, including parent-child relationships of seams. ToolĬreates a display of drillhole correlations. The following table describes the tools in the Correlation section of the Stratigraphic tab.