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Lithologic cross-plots are used to show the relationship between lithology and a depth dependent variable (for example, porosity, lead content, resistivity). A graph, a bar graph, or a geophysical log can represent the depth dependent variable. The cross-plot is generated by filling the region on the left side of the curve formed by the graph, bar graph, or geophysical log with the lithology symbols for each layer.
Other then setting the column type in the template to a lithologic cross-plot, the editing of data for cross-plots is identical to that of graphs, bar graphs, and geophysical logs. These types of editing are discussed above and are not repeated here.